if a red star and a blue star both have the same size, and are both the same distance away from earth, which one will appear brighter? how do you know? explain carefully.

14 m is the displacement for a trip from the math classroom in Figure 2.4 to the music classroom and then to the library

Displacement= final position-initial position

Displacement=14m-0

Displacement=14m

distance= total route= 14m

Distance is all covered distance but displacement is shortest distance. Being a vector quantity, displacement has both a magnitude and a direction. The vector (or straight line) distance between an initial and final position is what is meant by this term. Knowing these two places is consequently all that is necessary to determine the resultant displacement.

Calculate the inverse tangent of the ratio of the displacement components in the y- and x-directions to determine the direction of the displacement vector.

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Yes, I can defend the driver in court. In this scenario, The car skidded 39 m on a level road while attempting to stop before hitting a standing car.  The coefficient of kinetic friction between the car and the road is given as 0.90.

To defend the driver, it is important to analyze the situation using the principles of physics. By calculating the deceleration of the car using the skidding distance and the coefficient of friction, it is possible to determine the car's initial velocity. Comparing this velocity to the speed limit of 35 mi/h, it can be argued that the driver was not exceeding the speed limit and the ticket should be dismissed. Deceleration refers to the reduction in speed or velocity of an object over time. It is the opposite of acceleration, which represents an increase in speed. When an object decelerates, it slows down.

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Answer:

a.true

Explanation:

because the gravitational strength of earth and moon is different

When the crests of two waves overlap, constructive interference takes place. The crests of the waves combine as they pass through one another to create a wave with a larger amplitude. When two troughs come into contact, the same thing may happen.

A phenomenon known as interference occurs when two waves merge by adding their displacements at each and every point in space and time to create a new wave that may have a larger, smaller, or same amplitude. The amplitudes are progressive if one of the waves' crests coincides with another wave's crest. The resultant amplitude would double if the two waves' amplitudes were equal. Remember that the square of the amplitude determines how much light there is in an area. Constructive interference happens where the lines—which represent the peaks—cross one another. In other words, when two waves are in phase, constructive interference happens. Destructive interference results when two waves are completely out of phase (a peak is situated in the middle of two waves).

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The speed of the wave on a string is given by Taylor's formula:

where

F = tension force

μ = linear density = mass per unit length

But also we can say the speed of any wave is given by:

where:

λ = wave length

f = frequency

Plug the second equation in the first one. We get:

Now solve for f:

Lets say wave length is the same on the second case. Since it's the same string μ will also be the same.

See that 340 N = 2 x 170, so we can write:

Its 30 kg cause I got 30 kg dude.

i’ve done it on paper.

The Weight of an object is more at pole and less at equator of the earth because the distance of the pole is less than the distance of the equator from the centre of the earth.

You should also be familiar with the term "reference voltage," which is significant. A known voltage, referred to as the Reference voltage, is compared against an unknown voltage during an ADC conversion to determine its value.

An electrical device called a voltage reference produces a fixed voltage in the ideal case regardless of the device's load, changes in the power source, changes in temperature, or the passage of time.

When conditions like source voltage or ambient temperature fluctuate, a voltage reference is a precision device created especially to keep the output voltage constant.

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The CRO (Cathode Ray Oscilloscope) will display a triangular wave that is vertically stretched and horizontally compressed.

The vertical deflection plates will cause the triangular wave to be displayed with a peak-to-peak amplitude of\(100 cm (50 V * 0.1 cm/V)\), while the horizontal deflection plates will cause  sawtooth wave to be displayed with a peak-to-peak amplitude of \(5000 cm (100 V * 0.02 cm/V).\) The synchronization of the two inputs will ensure that the triangular wave and the sawtooth wave are displayed in a coordinated manner, with each cycle of the sawtooth wave corresponding to five cycles of the triangular wave. The resulting display will show a pattern of diagonal lines that gradually rise and then quickly drop back to the starting position, with each line representing a cycle of the sawtooth wave.

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A student uses a meter to measure 120 coulombs flowing through a circuit in 60 seconds. The electric current in this circuit will be  2 A

Current is a flow of electrical charge carriers, usually electrons or electron-deficient atoms. The common symbol for current is the uppercase letter I. The standard unit is the ampere, symbolized by A.

current = charge / time

given

time = 60 seconds

charge = 120 Coulombs

current = Q / T = 120 / 60 = 2 A

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The statement that best compares conditions at Location X and Location Y is At Location x, there will be more daylight hours.

Generally, co-ordinates is the horizontal and vertical distances from the two reference axes are used to describe the position of a point on a coordinate plane

In conclusion, In the diagram, the student has created a model of the sun and the earth. Because the x point is pointing away from the sun, locations on point x receive more light than locations on point Y.

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Explanation:

The mass of a body is its inertia or resistance to change of motion. Mass can therefore be measured either by the amount of force necessary to impart to the body a given motion in a given time or by the acceleration produced by a given force. ...

True. According to the National Electrical Code (NEC), flat cable assemblies are permitted as branch circuits to supply suitable tap devices for lighting, small power, or small appliance loads.

Flat cable assemblies are a type of wiring system that consists of multiple conductors arranged in parallel within a flat, flexible insulating material. They are designed to provide efficient and organized connections in electrical circuits.
These assemblies can be utilized in various applications, including lighting circuits, where they distribute power to different light fixtures, and small power circuits, which provide power for devices like computers, printers, and other office equipment. Flat cable assemblies are also used in small appliance circuits, which supply power to household appliances like refrigerators, washing machines, and air conditioners.
In summary, flat cable assemblies are allowed as branch circuits, according to the NEC, for the purpose of supplying power to suitable tap devices in lighting, small power, or small appliance loads. These assemblies offer efficient power distribution and organization within electrical circuits, making them a suitable choice for these applications.

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Answer: It prevents us from seeing most of the galactic disk with visible and ultraviolet light.

(hope this helps) :)

Answer:

40

Explanation:

v=x/t

x=200=displacement

t=5=time

200/5=40

Answer:

Are you looking for the formula? because if so:

M L^2 T^-3 I^-2

Explanation:

May I have brainliest please? :)

The component of the Rankine cycle that produces shaft power is the turbine. So the correct answer is option C.

The Rankine cycle is a thermodynamic cycle used in power generation that involves the conversion of heat into work. The cycle consists of four main components: a boiler, a turbine, a condenser, and a pump. In the Rankine cycle, water is heated in a boiler to produce steam, which then passes through a turbine. The steam expands in the turbine, causing the blades to rotate and produce mechanical work, which is then converted into electrical energy by a generator, the steam then exits the turbine and is condensed back into liquid form in a condenser before being pumped back to the boiler.

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Answer:

\(\boxed {\boxed {\sf 20 \textdegree C}}\)

Explanation:

We are asked to find the initial temperature of aluminum. We will use the following formula.

\(q= mc \Delta T\)

Where q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature, which is also the difference between the final and initial temperature.

\(q= mc (T_f-T_i)\)

We know the heat energy applied is 4050 Joules, the mass is 150 grams, the final temperature is 50 degrees Celsius and the specific heat is 900 Joules per kilogram degree Celsius.

We must convert the mass to kilograms because the specific heat is in kilograms. 1 kilogram contains 1000 grams.

Substitute all the known values into the formula.

\(4050 \ J = (0.150 \ kg )(900 \ J/kg \textdegree C)(50 \textdegree C -T_i)\)

We are solving for the initial temperature, so we must isolate the variable \(T_i\)It is being multiplied by 0.150 kilograms and 900 Joules per kilogram degree Celsius. The inverse operation of multiplication is division, so we divide by both values.

\(\frac {4050 \ J}{ (0.150 \ kg )(900 \ J/kg \textdegree C)}= \frac{(0.150 \ kg )(900 \ J/kg \textdegree C)(50 \textdegree C -T_i)}{(0.150 \ kg )(900 \ J/kg \textdegree C)}\)

\(\frac {4050 \ J}{ (0.150 \ kg )(900 \ J/kg \textdegree C)}=(50 \textdegree C -T_i)}\)

The units of Joules and kilograms cancel.

\(\frac {4050 }{ (0.150 )(900 \ \textdegree C)}=(50 \textdegree C -T_i)}\)

\(\frac {4050}{135} \textdegree C = (50 \textdegree C -T_i)\)

\(30 \textdegree C = (50 \textdegree C -T_i)\)

50 degrees Celsius is being added to \(-T_i\). The inverse operation of addition is subtraction. Subtract 50 degrees Celsius from both sides.

\(30 \textdegree C - 50 \textdegree C= 50 \textdegree C - 50 \textdegree C - T_i\)

\(-20 \textdegree C = -Ti\)

\(T_i\) is being multiplied by -1. The inverse operation of multiplication is division. Divide both sides by -1.

\(\frac {-20 \textdegree C}{-1}= \frac{-T_i}{-1}\)

\(20 \textdegree C = T_i\)

The initial temperature of the aluminum was 20 degrees Celsius.

Fission reactors are an important energy source, but environmental costs and issues are associated with their production. The most significant issue is the production of nuclear waste, which poses a serious threat to the environment and public health.

Nuclear waste is radioactive and can remain hazardous for thousands of years, making it difficult to safely dispose of. Moreover, it can contaminate water, soil, and air if disposed of improperly. Another issue is the high consumption of water required to cool the reactor, which can have a negative impact on aquatic life in rivers and lakes. Furthermore, the production and mining of uranium, which is the fuel for fission reactors, can lead to soil erosion and contamination. Additionally, uranium mining requires large amounts of energy, contributing to greenhouse gas emissions and other forms of pollution. In conclusion, producing energy through fission reactors results in several environmental costs and issues. While nuclear power is a clean source of energy compared to fossil fuels, its production and waste disposal methods pose serious environmental risks.

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First convert from mi/h to ft/s. There are 5280 ft to 1 mi, and 3600 s to 1 h, so

36 mi/h = (36 mi/h) * (5280 ft/mi) * (1/3600 h/s) = 52.8 ft/s

Let a be the acceleration of the car. The car's speed at time t is

v = 52.8 ft/s + a t

so that after 5.4 s, it attains a speed of

v = 52.8 ft/s + (5.4 s) a

Recall that

v² - u² = 2 a ∆x

where u is the car's initial velocity and ∆x is the distance it's traveled.

We have

(52.8 ft/s + (5.4 s) a)² - (52.8 ft/s)² = 2 a (595 ft)

Omitting units, this equation reduces to

(52.8 + 5.4 a)² - 52.8² = 1190 a

==>  29.16 a² - 619.76 a = 0

==>  29.16 a - 619.76 = 0

==>  29.16 a = 619.76

==>  a ≈ 21.25 ft/s²

Answer:

Approximately \(705\; {\rm m}\).

Explanation:

Let \(x\) denote the distance travelled before the plane takes off.

Let \(u\) denote the initial velocity of the plane, and let \(v\) denote the velocity of the plane when it takes off. It is given that the takeoff speed is \(v = 65\; {\rm m\cdot s^{-1}}\). Assuming that the plane was initially stationary, initial velocity would be \(u = 0\; {\rm m\cdot s^{-1}}\).

It is given that the acceleration of the plane would be \(a = 3\; {\rm m\cdot s^{-2}}\).

Since acceleration is constant, apply the SUVAT equation \(x = (v^{2} - u^{2}) / (2\, a)\) to find the value of \(x\):

\(\begin{aligned} x &= \frac{v^{2} - u^{2}}{2\, a} \\ &= \frac{(65)^{2} - (0)^{2}}{2\, (3)}\; {\rm m} \\ &\approx 705\; {\rm m}\end{aligned}\).

(Rounded up.)

Hence, the length of the runway should be at least \(705\; {\rm m}\).

We can see the image in most detail that having 400x magnification as compared to 100x.

Magnification is the process in which the size of an object is enlarging but not physical size of something. Those instruments having high magnification power can shows us the image larger and due to which we can see that image clearly.

So we can conclude that we can see the image in most detail that having 400x magnification.

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Answer:

Yes that is correct

Explanation:

Hope this helped Mark BRAINLEST!!!

Answer:

83.1557575 M/s

Explanation:

V²=u²+2as

v=\( \sqrt{u ^{2} { + 2as}^{ } } \)

u is initial velocity =0

here a =g

\(v = \sqrt{2gs} \)

v=

\( \sqrt{2 \times 9.8 \times 6} \)

v= 83.1557575 M/s

Answer:

propulsion

Explanation:

Answer:

Q = k M T    where k is the absorption constant, Q the heat absorbed, M the mass involved and T the temperature change (for change in temperature)

Q1 = 4.18 kJ/kg * 1 kg * 273 deg K     heat contained

Q2 = 4.18 kJ/kg * .5 kg * 373 deg K     heat contained

Q1 = 1141 kJ deg K

Q2 = 780 kJ deg K

Q = Q1 + Q2 = 1921 kJ deg K

T = 1921 / (4.18 * 1.5) deg K = 306 deg K = (306 - 273) = 33 deg Celsius

(The total mass  is now 1.5 kg)

Answer:

When choosing a location for a new optical observatory on Earth, there are several factors to consider. Some of the key factors include:

Taking into account these factors, some of the best locations for optical observatories on Earth are high-altitude sites in remote, dry, and mountainous areas, like Mauna Kea in Hawaii, Cerro Paranal in Chile, or Roque de los Muchachos Observatory in Spain!

Answer:

:)

Explanation:

Radiation

It radiates heat

Answer: 12.5 s If it was another number it would not make any sense I hope this helps you!!!!! :D

12.5 m/s it take to stop the rolling ball