Temperature of an object is 250 K. Find its temperature in centigrade.




help me in this assignment ​

The change in velocity of the snake is 8 mph.

The initial velocity of the snake is zero mph because it is starting from rest. The final velocity of the snake is 8 mph because that is its speed while chasing its meal.

Therefore, the change in velocity is:

final velocity - initial velocity = 8 mph - 0 mph = 8 mph

Velocity is a physical quantity that describes the rate at which an object changes its position with respect to time. It is a vector quantity, which means it has both magnitude and direction. The magnitude of velocity is the speed of an object, while the direction is the path it follows. Velocity is often expressed in meters per second (m/s) or kilometers per hour (km/h).

When an object moves, its velocity changes as it covers a certain distance in a certain amount of time. The formula for calculating velocity is velocity = distance/time. Therefore, if an object travels 10 meters in 2 seconds, its velocity is 5 m/s. Velocity can also be represented graphically on a distance-time graph, where the gradient of the line represents the velocity.

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The acceleration at x is 2 m/s²

Acceleration (a) is the rate of change of velocity (v) with respect to time (t).

The formula to calculate acceleration is:

a = (v - u) / t

Where u is the initial velocity (assuming u = 0 m/s in this case, since it's not given).

Substituting the given values, we get:

a = (v - u) / t

a = (30 m/s - 0 m/s) / 15 s

a = 2 m/s²

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Answer:2.5m

Explanation:

Compared with angle theta, the angle of refraction of the ray emerging from plate y into the air will be greater than the angle of incidence because the refractive index of the glass is greater than that of air.

When a light ray passes through a glass slab of given thickness, the deviation is primarily dependent on the angle of incidence (angle i), the angle of refraction (angle r), and the thickness of the glass slab t. The angle of refraction of the ray emerging from plate y into the air will be greater than the angle of incidence because the refractive index of the glass is greater than that of air.

When a light beam passes from a medium with a high refractive index to a medium with a low refractive index, it is refracted away from the normal. When light travels from air to glass, the speed decreases and the direction changes. Since the refractive index of air is lower than the refractive index of glass, the angle of refraction will be greater than the angle of incidence. Therefore, the angle of refraction will be greater than the angle of incidence as the light passes from glass to air.

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Answer:

it increased by 29 sorry hope this helps

In component form, the displacement vectors become

• 350 m [S]   ==>   (0, -350) m

• 400 m [E 20° N]   ==>   (400 cos(20°), 400 sin(20°)) m

(which I interpret to mean 20° north of east]

• 550 m [N 10° W]   ==>   (550 cos(100°), 550 sin(100°)) m

Then the student's total displacement is the sum of these:

(0 + 400 cos(20°) + 550 cos(100°), -350 + 400 sin(20°) + 550 sin(100°)) m

≈ (280.371, 328.452) m

which leaves the student a distance of about 431.8 m from their starting point in a direction of around arctan(328.452/280.371) ≈ 50° from the horizontal, i.e. approximately 431.8 m [E 50° N].

The density of the wooden cube is approximately 0.746 g/cm³.

Density is a physical property that describes how much mass a substance has per unit volume. It is typically measured in grammes per cubic centimetre (g/cm3) or kilogrammes per cubic metre (kg/m3).

The formula for density is:

Density = Mass / Volume

The density (ρ) of an object is defined as its mass per unit volume, and can be calculated using the formula:

ρ = m / V

where ρ is the density in units of mass/volume (e.g. g/cm^3), m is the mass of the object, and V is its volume.

In this case, we are given the mass of a wooden cube (m = 59.3 g) and the edge length of the cube (l = 4.30 cm). To calculate the volume of the cube (V), we can use the formula for the volume of a cube:

V = l³

Substituting the given values, we get:

V = (4.30 cm)³ = 79.51 cm³

Now we can calculate the density:

ρ = m / V = 59.3 g / 79.51 cm^3 ≈ 0.746 g/cm^3

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Answer:

no

Explanation:

because the heaver an object the harder it is to move s the force will not be able to move it

Answer:

When two objects interact, each one exerts a force on the other that can cause energy to be transferred to or from the object. For example, when energy is transferred to an Earth-object system as an object is raised, the gravitational field energy of the system increases.

Explanation:

Force and work are directly proportional to each other, while force and displacement are indirectly propotional. The equation showing the relationship is W= Fd. W represents work measured in joules; F represents force in newtons; and d represents distance in meters.

The median depth of the sinusoidal function is 14m represents the average or middle value of the water depth over one complete cycle.

To determine the period and median depth of the sinusoidal function that relates time and water depth at the ocean port, we need to analyze the given information.

The period of a sinusoidal function represents the time it takes for one complete cycle. In this case, the period would be the time it takes for the water depth to repeat its pattern.

Given that the maximum depth of 20m occurs at 8:00 am and the minimum depth of 8m occurs 6.2 hours later, we can calculate the period as follows:

Period = Time for one complete cycle = Time of minimum depth - Time of maximum depth

Period = 6.2 hours

Finally, the period of the sinusoidal function is 6.2 hours.

The median depth represents the average or middle value of the water depth over one complete cycle. To find the median depth, we can calculate the average of the maximum and minimum depths:

Median depth = (Maximum depth + Minimum depth) / 2

Median depth = (20m + 8m) / 2

Median depth = 14m

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A moon is defined as a natural satellite orbiting around a planet. It is a celestial body that orbits around a planet or a dwarf planet in our solar system. What makes a moon different from a planet is that moons do not orbit around the sun. They orbit around a planet or a dwarf planet instead.

In addition, moons are smaller than planets and do not have their own atmosphere. Moons can be rocky or icy and can be made up of different types of materials such as dust, rock, ice, and gas. They are formed through various processes such as accretion, collision, capture, and fission. Out of all the moons in our solar system, I think that the moon of our Earth is the most interesting.

The moon of the Earth is the only natural satellite of our planet. It is about one-quarter the size of the Earth and is about 238,855 miles away from the Earth. It has a rocky and dusty surface, with many craters, mountains, valleys, and seas. The moon has played an important role in the history of human civilization, serving as a source of light, a calendar, and an object of scientific study. It has been explored by humans and robots, revealing many secrets of its geology, composition, and history.

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s=vt

s=6m/s×600s

s=3600m

The radius of curvature of the other side of the lens must be equal to the focal length (f) of the lens.


In a lens with one side flat, the lens maker's formula can be used to determine the radius of curvature for the other side. The lens maker's formula is:
\(\frac{1}{f} = (n-1) * (\frac{1}{R_{1} } - \frac{1}{R_{2}} )\)
Here, f is the focal length, n is the refractive index of the lens material, \(R_{1}\) is the radius of curvature of the first surface, and \(R_{2}\) is the radius of curvature of the second surface.
Since one side of the lens is flat, it has an infinite radius of curvature. Thus, either \(R_{1}\)  or \(R_{2}\)  will be infinity. Assuming \(R_{1}\)  is the flat side, the formula becomes:
\(\frac{1}{f}= (n-1) * (\frac{-1}{R_{2} } )\)
As a result, to find the radius of curvature of the other side \(R_{2}\) , we can rearrange the formula:
\(R_{2}  = - (n-1) * f\)
In a lens with one side flat, the radius of curvature of the other side must be equal to the product of the focal length (f) and the difference between the refractive index of the lens material (n) and 1.

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The term for waves that are caused by seismic activity is seismic waves.

Seismic waves are waves of energy that travel through the Earth's layers in response to seismic activity. Seismic activity refers to any activity that causes the ground to vibrate, such as earthquakes, volcanic eruptions, and human-made explosions.

Seismic waves are waves of energy that travel through the Earth's layers, including the crust, mantle, and core. Seismic waves are classified into two main types: body waves and surface waves.

Seismic waves can be detected and measured using specialized equipment such as seismometers. Seismometers are instruments that measure the motion of the ground and can detect even small vibrations caused by seismic waves.

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Answer: the cube will proble sink

but the pink will float

Answer:

wavelength = (3×10^8 m/s)(6×10^5 Hz)

= 1.8×10^14 m

The SI unit of the proportionality constant G is given as

[G]  = [M]^3 / [Kg  s²]

Newton's law of universal gravitation states that  every particle attracts every other particle in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

We substitute [kg]=[M], [m]=[L], and [F]-[kg x m] / [s²]- [M] [L]/ [T²]

into

Newton's law of universal gravitation to obtain

[M][L] [G][M] [T [CF

Solving for [C] then gives

m³

[G] = [L]^3  / [M][T]² kg

[G]  = [M]^3 / [Kg  s²]

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1.875

Explanation:

speed = distance moved ÷ time taken

Answer:

4. meter rod​

Explanation:

The length of an object is dimension that expresses how long the object is. It is measured in meters as the SI unit.

From the given question, to determine the length of a given table, the appropriate instrument that should be used is a meter rod. This would make it possible to measure in meters and know the exact dimension of the object with respect to how long it is.

A meter rod has a length of 1 m (100 cm), and can be easily used for the purpose.

The distance between the two masses at the given gravitation force is determined as 361.3 m.

The distance between the two objects is calculated by applying Newton's law of universal gravitation as follows;

F = (Gm₁m₂) / r²

Where;

The given parameters include;

F = 2.0 x 10⁻⁸ N

m₁ = 4,500 kg

m₂ = 8,700 kg

The distance between the two masses is calculated as follows;

r² = (Gm₁m₂) / F

r = √ [ (Gm₁m₂) / F ]

r = √(6.67 x 10⁻¹¹ x 4,500 x 8,700 ) / (2.0 x 10⁻⁸)

r = 361.3 m

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Electricity is defined as the flow of electrical current through a conductor.

A fundamental type of energy that is produced by the presence and movement of electric charge is electricity. The passage of electrons or other charged particles across a conductor, like a wire, is what defines the phenomena. It includes the creation, transmission, and use of electric energy, as well as the full field of electric phenomena.

Therefore,

Electricity is defined as the flow of electrical current through a conductor.

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Answer:

F = 13252.46 [N]

Explanation:

To solve these types of problems we must make a free body diagram. Attached we cand find a diagram of this free body diagram with the forces acting on the truck, since the truck does not move it follows that it is in static equilibrium so the sum of the forces on the X and Y axes must be equal to zero.

In the free body diagram it is necessary to use a Force F, which prevents the truck from going downhill, the direction of this force must be opposite to the movement towards the downhill.

Thus performing a sum of forces on the X-axis equal to zero, we can find the Force F corresponding to the brakes of the truck.

If a big force acts on the metal towers of suspension bridge, the tower will not break into pieces like glass, but will bend instead. This is due to the ductile property of metals.

Metals have a greater intermolecular force between their particles. Suspension bridges are usually made of metals instead of materials like glass or any other materials lacking ductility. Glass is a brittle material and that is the reason it is broken into pieces.

The property of metals to be drawn into thin wires is called ductility. Metals do not undergo sudden collapse.

It is due to the ductile property that suspension bridge do not break when strong force acts on it.

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The momentum of a car of mass 2,200 kg at ​21 ms−1 is 46,200 kg m/s, the impulse produced by a force of 5 N acting for 2.5 s is 12.5 Ns and a mass of 1.3 kg is initially at rest. The change in velocity when subject to an impulse of 52 Ns is 40 m/s.

(a) The momentum of a car is given by the product of its mass and velocity.

Momentum, p = mv

Where,m = mass of the car

= 2200 kg

v = velocity of the car

= 21 m/s

p = 2200 × 21

= 46,200 kg m/s

(b)  Impulse is the product of force and time.

Impulse, J = Ft

Where,

F = Force

= 5 N

t = time

= 2.5 s

J = 5 × 2.5

= 12.5 Ns.

(c) The change in velocity of an object is given by the ratio of impulse to mass.

Δv = J/m

Where, m = mass of the object

= 1.3 kgJ

= Impulse

= 52 Ns

Δv = J/m

= 52 / 1.3

= 40 m/s.

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Given two objects of the same mass but of different sizes, the one that has a greater density is: a. the smaller object

Due to the density of an object is the relation that exist between the mass and the space that the object occupies, if we have two objects with the same mass the one that is going to have a greater density is the smaller object because it occupies less space with more mass.  

We can prove it using the density formula to solve the following exercise:

Two objects have a mass of  100 g, and their volume are 20 cm³ and 10 cm³ respectively, what is the density of each one?

The general formula of the density is:

d = m/v

Where:

Information about the problem:

Applying the density  formula we get:

d = m/v

d1 = 100g/20 cm³

d1 = 5g/cm³

d2 = 100g/10 cm³

d2 = 10g/cm³

With the results we can confirm that the object that has the greater density is the smaller, because it has less volume.

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

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Answer: 480 N is required to maintain the arrangement .

Explanation:

Given, 320 N  force is required to hold 2 protons in a particular arrangement .

Then the force required to keep 1 proton in a particular arrangement = 320/2

= 160 N

Then if  a proton is replaced by an alpha particle , it is given that a alpha contains 2 protons , then we conclude that after replcament , the arrangement has 1 alpha and 1 proton = 3 protons

Then , the force exerted by 3 protons = 3×160 = 480 N

The force exerted by the arrangement , if one of the protons is replaced with alpha is 480 N

Answer:

There are four types of orbitals that you should be familiar with s, p, d and f (sharp, principle, diffuse and fundamental). Within each shell of an atom there are some combinations of orbitals