which kind of body is the largest? responses asteroids asteroids comets comets meteoroids meteoroids all are the same size
Answers
Among asteroids, comets, and meteoroids, asteroids are generally the largest in terms of size. While comets and meteoroids can vary in size, asteroids tend to be larger on average.
Asteroids are rocky objects that orbit the Sun and are typically larger than comets and meteoroids. They can range in size from small boulders to bodies measuring several hundred kilometers in diameter. Some of the largest known asteroids, such as Ceres, Vesta, and Pallas, have diameters exceeding 400 kilometers.
Comets, on the other hand, are composed of ice, dust, and rocky material and are usually smaller than asteroids. They often have a nucleus that is a few kilometers or less in diameter, although their tails can extend for millions of kilometers. Meteoroids are smaller fragments of asteroids or comets that travel through space. While meteoroids can vary in size, they are typically smaller than asteroids.
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Related Questions
Light carries energy in the form of ______.
1. kinetic energy
2. potential energy
3. radiant energy
Answers
Explanation
In fact visible 'light' is a form of radiation, which can be defined as an energy that travels in the form of electromagnetic waves. It can also be described as a flow of particle-like 'wave-packets', called photons, that travel constantly at the speed of light (about 300 000 kilometres per second).
Light is an example of electromagnetic radiation and has no mass, so it has neither kinetic nor potential energy
Light carries energy in the form of radiant energy.
To find the answer, we need to know about light.
What is light?Light is an electromagnetic wave that travels at speed of 3×10⁸ m/s in free space.It comes under the visible region of the electromagnetic wave which has wavelength range between 400nm to 700nm.What does light contain?Light contains discrete packets of energy called photons. These photons are produced from any kind of source in the form of radiation. So, the energy of light is called radiant energy.Thus, light carries energy in the form of radiant energy.
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Temperature is
SELECT ALL THAT APPLY
a measurement of thermal energy
a constant value
able to change based on surrounding energy
conditions
equal to heat
Answers
Answer:
The 1st and the 3rd answer
Question 12
In which circuit are both bulbs lit?
A.
Oa
Oc
Od
8
ABCO
В
С
D
B.
2
&
8
$
Answers
The circuit in which both bulbs will lit is circuit C.
What is a complete circuit?A complete circuit, also known as a closed circuit, is a continuous loop of electrical conductors or components that allows the flow of electric current.
A closed circuit consists of all the electrical components that are connected in a loop. When the circuit is closed, meaning that there is a continuous path for the electric current to flow from the power source through the components and back to the power source, it is considered a complete circuit.
For this given diagram, the only option that illustrates a complete circuit is option C.
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List some endurance training exercises.
Answers
Answer:
•Walking briskly
• Running /jogging
•Dancing
•biking
If a brick has a density of 3.75g/mL and a mass of 20.25g, what is its volume
Answers
Answer:
5.4mL
Explanation:
20.25g divided by 3.75g/mL= 5.4mL
typhoons without water soon run out of energy.
true or false
Answers
Answer:
true
Explanation:
if electrons move at a speed of 0.5 mm/s in a certain copper wire, what is the magnitude of the current density j in that wire? (hint: see equation e5.8 for the value of the electron number density n for copper.)
Answers
The magnitude of the current density j in the copper wire is approximately 6.84 * 10^{4} A/m^{2}.
To determine the magnitude of the current density j in the copper wire, we need to use the equation:
j = nev
where n is the electron number density, e is the charge of an electron, and v is the velocity of the electrons.
From equation e5.8, we know that the electron number density for copper is approximately 8.5 * 10^{28} electrons/m^{3}.
The velocity of the electrons is given as 0.5 mm/s, which is equivalent to 5 *10^{-4 }m/s.
The charge of an electron is 1.602 * 10^{-19} C.
Substituting these values into the equation, we get:
j = (8.5 * 10^{28} electrons/m^3) * (1.602 * 10^{-19} C/electron) * (5 * 10^{-4} m/s)
j = 6.84 * 10^{4 }A/m^{2}
Therefore, the magnitude of the current density j in the copper wire is approximately 6.84 * 10^{4} A/m^{2}.
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now find the magnitude of the force on an electron placed at this same point. recall that the charge on an electron has magnitude e
Answers
The magnitude of the force on an electron placed at a point can be calculated using Coulomb's law equation, taking into account the distance and the charge of both particles involved.
To find the magnitude of the force on an electron placed at a point, we need to consider Coulomb's law equation. This law states that the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the equation can be written as F = kq1q2/d², where F is the force, k is Coulomb's constant, q1 and q2 are the charges of the two particles, and d is the distance between them.
In this case, we know that the charge on an electron has a magnitude of e, which is approximately 1.6 x 10^-19 Coulombs. We also know the distance between the electron and the point where we want to calculate the force. Using the Coulomb's law equation, we can calculate the magnitude of the force on the electron.
For example, if the distance between the electron and the point is 1 meter, and the point has a charge of 2 Coulombs, the magnitude of the force on the electron would be F = k(e)(2)/1² = (9 x 10⁹ Nm²/C²)(1.6 x 10⁻¹⁹ C)(2)/1² = 2.88 x 10⁻⁸ N.
Therefore, the magnitude of the force on an electron placed at a point can be calculated using Coulomb's law equation, taking into account the distance and the charge of both particles involved.
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Consider a ball that has been tossed directly upward. Which of the following statements about the ball-earth system are true? Select all that apply. The system has the most potential energy at the top of the path, and no kinetic energy at the top of the path. The total energy of the system remains constant as the ball moves along its trajectory. The system has the most kinetic energy at the top of the path, and no potential energy at the top of the path. The total energy of the system changes as the ball moves along its trajectory. At all points along the ball trajectory the kinetic energy plus the potential energy add to the total energy of the system.
Answers
Answer: The total energy of the system remains constant as the ball moves along its trajectory, the system has the most potential energy at the top of the path, and no kinetic energy at the top of the path, and the total energy of the system changes as the ball moves along its trajectory are all correct.
Explanation:
Following statements are accurate: 1. The system has zero kinetic energy and the highest concentration of potential energy at the top of the path, 2. As the ball travels along its trajectory, the total energy of the system stays constant.
1. The system has the most potential energy at the top of the path, and no kinetic energy at the top of the path: At the highest point of its trajectory, the ball momentarily comes to a stop before changing direction. Therefore, it has no kinetic energy (motion energy) at that point but has the highest potential energy (stored energy due to height above the ground).
2. The total energy of the system remains constant as the ball moves along its trajectory: The total energy of a closed system, such as the ball-earth system, remains constant if there are no external forces or energy losses. In this case, neglecting air resistance and assuming the ball returns to its starting point, the total energy (sum of kinetic and potential energy) of the system remains constant throughout the ball's motion.
3. At all points along the ball trajectory, the kinetic energy plus the potential energy add to the total energy of the system: The total energy of the system is the sum of kinetic energy (½mv², where m is mass and v is velocity) and potential energy (mgh, where m is mass, g is acceleration due to gravity, and h is height). At any point along the ball's trajectory, the sum of kinetic and potential energy gives the total energy of the system.
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What would happen in the Sun if fusion reactions suddenly ceased? •Photons will stop radiate from the surface of the Sun, and there will be no any other observable changes because of great mass of the Sun. •Photons would stop to radiate from the Sun in a few hundred years, but the solar wind would increase drastically. •Photons would continue diffuse from the core and radiate from the surface of the Sun for about a million of years. •Without interior radiation pressure, the Sun will contract under its own weight about three times in about a thousand years.
Answers
Without fusion reactions in the Sun, the interior radiation pressure that counteracts the gravitational force would cease. This would cause the core to collapse inward due to the gravitational force, increasing the pressure and temperature in the core. As a result, the outer layers of the Sun would expand outward, causing the Sun to become a red giant.
In this scenario, the correct option would be: Without interior radiation pressure, the Sun will contract under its own weight about three times in about a thousand years.
As the Sun contracts, its core temperature and pressure will continue to increase until helium atoms are able to fuse, which will release energy and cause the outer layers of the Sun to expand outward again. However, since the Sun has already burned most of its hydrogen fuel, this phase of fusion will only last for a short time before the Sun eventually dies.
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Choose the word to fill in the blank, which best completes the sentence. Light entering a clear glass prism. A rainbow exits the prism on the opposite side. Prisms made of glass will ________ light and create colored rainbows on a wall, as is shown in the image above. A. Transmit c. Refract b. Transfer d. Absorb.
Answers
Answer:
the answer is B!!!! just took the topic test
Explanation:
b
Answer:
B. most commonly found in sand or quartz.
Explanation:
Got 100% on EDGE
Write 3.5 x 105 in standard form.
Answers
sorry if this is wrong
A traffic light hangs from a pole as shown in (Figure 1). The uniform aluminum pole AB is 7.30 m long and has a mass of 14.0 kg . The mass of the traffic light is 20.0 kg . Determine the tension in the horizontal massless cable CD . Determine the vertical component of the force exerted by the pivot A on the aluminum pole. Determine the horizontal component of the force exerted by the pivot
Answers
The tension in the horizontal massless cable CD is 140 N, and the vertical component of the force exerted by the pivot A on the aluminum pole is 205 N. The horizontal component of the force exerted by the pivot is 107 N.
In summary, to determine the tension in the horizontal cable CD, the mass of the traffic light and the length of the pole are given. The tension in the cable is equal to the horizontal component of the force exerted by the pivot, which is also equal to the weight of the traffic light. Therefore, the tension in the cable is 140 N.
To find the vertical component of the force exerted by pivot A on the aluminum pole, we need to consider the weight of both the pole and the traffic light. The weight of the pole can be calculated by multiplying its mass by the acceleration due to gravity. The weight of the traffic light is simply its mass multiplied by the acceleration due to gravity. Adding these two forces together gives the total vertical force exerted by the pivot, which is 205 N.
Lastly, to determine the horizontal component of the force exerted by the pivot, we need to use trigonometry. The horizontal component is equal to the tension in the cable, which we already found to be 140 N. By using the right triangle formed by the vertical and horizontal components of the force exerted by the pivot, we can calculate the horizontal component using the tangent function. In this case, the horizontal component is 107 N.
In conclusion, the tension in the horizontal cable CD is 140 N, the vertical component of the force exerted by pivot A is 205 N, and the horizontal component of the force exerted by the pivot is 107 N.
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If mass = 30kg, gravity = 10 N/kg and height is 2m of a car. Calculate the gravitational potential energy.
Answers
Answer:
P.E.=600Nm
Explanation:
m=30kg
g=10m/s²
h=2m
P.E.=?
as we know that
P.E.=mgh
P.E.=30kg×10m/s²×2m
P.E.=600Nm
the speed of sound in air at 10°c is 305m/s calculate the speed of sound when the air temperature is 32°c
Answers
v = v0 * sqrt(T/T0)
where v is the speed of sound at the given temperature, v0 is the speed of sound at a reference temperature T0, which is 273 K (0 °C) in this case, and T is the absolute temperature of the air in Kelvin.
Converting the given temperatures to Kelvin, we get:
T1 = 10 °C + 273 = 283 K
T2 = 32 °C + 273 = 305 K
Substituting the given values into the formula, we get:
v1 = 305 m/s * sqrt(283/273) = 331 m/s
v2 = 305 m/s * sqrt(305/273) = 348 m/s
Therefore, the speed of sound in air at 32 °C is 348 m/s (rounded to the nearest whole number).
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enc
Why do two socks sometimes stick together
in a dryer?
A. Both socks have a positive charge.
CB. Both socks have a negative charge.
C. Protons move from one sock to
another.
CD. Electrons move from one sock to
another.
Answers
Answer:
D. Electrons mover from one to another
Explanation:
Static electricity occurs when electrons are transferred from one object to another.
PLS HELP!!!! the image shows a chart to help!!
-The question is, "The following equations represents Chemical reactions. Which equation shows at the total mass during a chemical reaction stays the same?"
answer choice are:
A. equation 2
B. equation 1
C. equation 3
D. equation 4
Answers
Dones
Which statement best explains the similarity in the arrangement of the bones in these two structures?
O The bones of all animals are similarly arranged
O The bones of animals that take in oxygen are similarly arranged.
O Humans and whales use these structures to perform the same functions.
Humans and whales inherited these structures from a common ancestor.
Answers
when a mass of 48 g is attached to a certain spring, it makes 16 complete vibrations in 2.1 s. 1) what is the spring constant of the spring?
Answers
A mass of 48 g is attached to a certain spring, it makes 16 complete vibrations in 2.1 s. The spring constant of the spring is approximately 29.19 N/m.
To find the spring constant (k) of the spring, we can use Hooke's Law, which states that the force exerted by a spring is directly proportional to the displacement from its equilibrium position.
Hooke's Law can be expressed as:
F = -kx
Where:
F is the force exerted by the spring,
k is the spring constant,
x is the displacement from the equilibrium position.
In the case of simple harmonic motion, the period (T) of oscillation is related to the spring constant and the mass (m) attached to the spring:
T = 2π * \(\sqrt{m/k}\)
Given:
Mass (m) = 48 g = 0.048 kg
Number of complete vibrations (n) = 16
Time (t) = 2.1 s
First, let's calculate the period of oscillation (T) using the formula:
T = t / n
T = 2.1 s / 16 ≈ 0.13125 s
Now, we can rearrange the equation for the period to solve for the spring constant (k):
k = (4π² * m) / T²
k = (4 * π² * 0.048 kg) / (0.13125 s)²
k ≈ 29.19 N/m
Therefore, the spring constant of the spring is approximately 29.19 N/m.
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Help please
Which occurrence would lead you to conclude that lights are connected in a
combined circuit?
A. When one bulb burns out all the lights go out.
B. When one bulb burns out, a circuit breaker is tripped.
C. When one bulb burns out a small section of lights goes out.
D. When one bulb burns out all the other lights stay lit.
Answers
Answer:
D
Explanation:
as one burns then all stop simple
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How much work, in Joules, is required to stop a 1,168 kg car moving with a speed of 24 km/hr?
Answers
Hence, W=1/2*1168kg*[(20/3)/m/s]^2=25955.56J
The work required to stop the car is 23,756 J
The work required to stop a car is equal to the amount of energy that the car has due to its motion. This energy is called the kinetic energy of the car. The kinetic energy of a car is calculated as the product of the mass of the car and the square of its velocity.
kinetic energy = 1/2 * mass * velocity²
The mass of the car is 1,168 kg and the velocity of the car is 24 km/hr. We will first need to convert the velocity from km/hr to m/s. To do this, we will multiply the velocity by 5/18. So, the velocity of the car is 24 * 5/18 = 6.667 m/s.
We can now calculate the kinetic energy of the car as follows:
kinetic energy = 1/2 * 1,168 * 6.667² = 23,756 J
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Which wave must have a medium to travel?
A) light wave
B)compression wave
C) electromagnetic wave
D) ultraviolet wave
Answers
Explanation:
light waves because the categorised under mechanical waves
2 neutral metal spheres, A and B, are touching each other.
A negatively charged rod is brought near to B.
(a) Draw the charges induced on the 2 spheres.
The negatively charged rod is now brought closer to touch B.
(b) Explain why A momentarily moves away from B.
i need help with b
Answers
1 A magnetic field of 0,5 T passes through an conducting loop of area 10 cm². The field lines are at 70° to the plane of the loop. 1.1 Calculate the magnetic flux linkage. (Hint: First, calculate the angle between the field and the normal to the plane.) 1.2 Calculate the average emf that will be induced across the ends of the coil if it is removed from the field in 0,2 s. (Hint: It is removed from the field so final is zero.) 1.3 Calculate the induced current if the loop is connected to a circuit with a resistance of 2 Q. 2 A solenoid with 400 turns is rotated so that the magnetic flux linked x 10-4 Wb in 0,1 s. 3 with each turn changes from 5 x 10-4 Wb to Calculate the average emf across the ends of the solenoid. A wire loop with an area of 0,02 m² is positioned in a magnetic field in which the flux density changes from 0,1 T to 0,8 T in 0,4 s. The magnetic field is at an angle of 25° to the normal to the plane of the loop. 3.1 Calculate the induced emf. 3.2 Calculate the induced current if the loop is connected to a circuit with a resistance of 5 Q. F i C q 1 3
Answers
Magnetic flux linkage = magnetic field * area * cos(angle)
Plugging in the given values, we get:
Magnetic flux linkage = 0.5 T * 10 cm^2 * cos(20°) = 0.087 Wb
1.2 The average emf induced across the ends of the coil is given by:
Average emf = change in magnetic flux linkage / time
Since the coil is removed from the field, the final magnetic flux linkage is zero. Therefore, the change in magnetic flux linkage is equal to the initial magnetic flux linkage, which we calculated in part 1.1. Plugging in the given values, we get:
Average emf = 0.087 Wb / 0.2 s = 0.435 V
1.3 The induced current can be found using Ohm's law:
I = V / R
Plugging in the given values, we get:
I = 0.435 V / 2 Ω = 0.218 A
2. The average emf induced across the ends of the solenoid is given by:
Average emf = change in magnetic flux linkage / time
Since the magnetic flux linked changes from 5 x 10^-4 Wb to 15 x 10^-4 Wb, the change in magnetic flux linkage is:
Change in magnetic flux linkage = 15 x 10^-4 Wb - 5 x 10^-4 Wb = 10 x 10^-4 Wb
Plugging in the given values, we get:
Average emf = 10 x 10^-4 Wb / 0.1 s = 0.1 V
Therefore, the average emf across the ends of the solenoid is 0.1 V.
3.1 The induced emf can be found using Faraday's law:
Induced emf = -N * d(flux) / dt
Since the flux density changes from 0.1 T to 0.8 T, the change in flux density is:
Change in flux density = 0.8 T - 0.1 T = 0.7 T
who will catch the ball on the merry-go-round spinning counter-clockwise? a. ball caught by the thrower b. ball caught opposite the thrower c. ball caught to the thrower's left d. ball caught to the thrower's right
Answers
The ball will be caught by the thrower's right. The correct answer is option d.
When the merry-go-round is spinning counterclockwise, the person throwing the ball and the ball itself will have a tangential velocity in the counterclockwise direction. As the ball leaves the thrower's hand, it will continue to move in a straight line with this tangential velocity.
However, the ball is also subject to the circular motion of the merry-go-round, which means it will also have a centripetal acceleration towards the center of the merry-go-round.
As a result, the ball will follow a curved path towards the right of the thrower and will be caught by the thrower's right hand.
So, the correct answer is d. the ball caught to the thrower's right.
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Explain why it takes much more effort to
stop a freight train compared with a car.
Include the terms force, mass and
acceleration in your description
Answers
Answer:
Mass Kinetic Energy and Jules
Explanation:
The train in question is big and heavy and a car is decently heavy but say a train moving at 55 mph can plow through a car and a car driving at 55mph driving at a train will be stopped dead in its tracks. This is because newtons laws of motion specifically an object in motion will stay in motion unless its opposed. The train also has a payload behind it meaning it hurts with force while a car doesn't have to much mass behind it. The train takes loner to stop for as it's acceleration as well as it's deceleration are very slow because its huge and takes a lot of force to stop it while a car is very centralized and compact when it comes to weight and its brakes are usually effective at stopping at 55 mph in about 2 to 6 seconds while a train might stay moving for a good 35 seconds. The force behind the train is immense for as even if the wheels don't spin at all the train will still move since the force behind it is great and a cars tires have a lot of grip and not a lot mass which plays into the force the car has so it can stop simply.
if the density of gold is 19.3 x 103 kg/m3, what buoyant force (n) does a 0.60-kg gold crown experience when it is immersed in fresh water?
Answers
If placed in groundwater, a 0.60 kg gold crown would rise by a buoyant force of almost 11.58 N. You can ascertain the same using the formula provided:
Buoyant force = density of fluid x Volume of object x gravitational acceleration
= 1000 kg/m3 x 0.60 kg/m3 x 9.81 m/s2
= 11.58 N
When an item is submerged in a fluid, buoyant force, a kind of uplifting force, is applied to that item. An entity's buoyant force is proportional to the amount of both the fluid it has evacuated.
Step 1: Calculate the volume of the crown
Mass divvied up by concentration is just the formula for calculating an item's volume. The golden crown inside this instance weighs 19.3 x 103 kg/m3 in terms of density.
Volume = 0.60 kg/19.3 x 103 kg/m3
Volume = 0.0031 m3
Step 2: Determine how much water has been displaced by mass.
The crown's volume times the water is probably density gives the amount of water that is evacuated. Freshwater has a 1,000 kg/m3 density.
Mass of water moved is 0.0031 m3 times 1,000 kg/m3.Water displacement weight is equal to 3.1 kg
Step 3: Determine the buoyant force.
The buoyant force that an item experiences is proportional to the mass of the fluid which that item has displaced. The water that was removed weighs 3.1 kg in particular instance.
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What is the equation for speed?
Speed= time + distance
Speed= distance/time
Speed = time/distance
Speed = distance x time
Answers
Arrange the following in order of increasing radius: O2-, F- , Ne ,Rb+ ,Br- Rb+ < F- < Br- < O2- < Ne Br- < Rb+ < Ne < F- < O2- Ne < F- < O2- < Rb+ < Br- O2- < F- < Ne < Rb+ < Br- O2- < Br- < F- < Ne < Rb + Br- < F- < O2- < Ne < Rb+ F- < O2- < Ne < Br- < Rb + Rb+ < F- < Br- < Ne
Answers
Radii is a vital feature of the elements, and it can be useful in determining the characteristics of elements in various chemical and physical processes. The radii of atoms and ions of the same element differ due to their various charge and mass characteristics.
Atomic and ionic radii increase as you move down a group on the periodic table, and decrease as you move across a period from left to right due to increased nuclear charge, making the electrons closer to the nucleus. The size of an atom and ion also changes due to the number of electrons charge, and electronic configuration.In order of increasing radius, the arrangement of \(Ne, F-, O2-, Br-, Rb\) is given as follows:
\(Ne < F- < O2- < Br- < Rb+\)
Rb+ has the smallest radius due to its large nuclear charge and fewer electrons in the valence shell.
As a result, they are larger than Rb+. O2- has more electrons than Ne and is the largest among the given ions and atoms. It is important to note that in certain conditions, the trends in radii may not be valid because of hybridization and other factors. Nonetheless, this arrangement is valid for the given ions and atoms.
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What would happen if the weather became very calm and the wind was not blowing for a few days around the wave hub?
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