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2 years ago

What us the difference in the ways objects move at a speed of a car and an object mkvinf close to the speed of light?

Physics

1 answer:

Charra [1.4K]2 years ago

5 0

Answer:

The difference is in who or what is observing the speed.

Explanation:

Giving that speed is relative between the objects and the reference point from which it is being observed.

It is concluded that speed alone has no direct effect on a moving object, hence it is just a determining unit for the difference in distance between two objects.

Therefore, in this case, the difference is in who or what is observing the speed.

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Consider a small car of mass 1200 kg and a large sport utility vehicle (SUV) of mass 4000 kg. The SUV is traveling at the speed

Karolina [17]

Answer:

63.9 m/s

Explanation:

Parameters given:

Mass of small car, m = 1200 kg

Mass of SUV, M = 4000 kg

Speed of SUV, V = 35 m/s

Their kinetic energy of the small car is equal to the kinetic energy of the SUV, hence:

0.5 * m * v² = 0.5 * M * V²

=> 0.5 * 1200 * v² = 0.5 * 4000 * 35²

600 * v² = 2450000

v² = 2450000/600

v² = 4083.3

=> v = 63.9 m/s

The speed of the small car is 63.9 m/s.

6 0

3 years ago

Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. The

goldfiish [28.3K]

I think the answer to your question is B

7 0

2 years ago

a0.155 kg arrow is shot from ground level, upward at 31.4 m/s. what is its kinetic energy (ke) when it is 30.0 m above the groun

swat32

The kinetic energy (KE) of a 0.155 kg arrow that is shot from ground level, upward at 31.4 m/s, when it is 30.0 m above the ground is 30.85 J

Assuming air friction is negligible,

a = - 9.8 m / s²

u = 31.4 m / s

s = 30 m

v² = u² + 2 a s

v² = 31.4² + ( 2 * - 9.8 * 30 )

v² = 985.96 - 588

v² = 397.96 m / s

KE = 1 / 2 m v²

KE = 1 / 2 * 0.155 * 397.96

KE = 0.0775 * 397.96

KE = 30.85 J

Therefore, the kinetic energy ( KE ) when it is 30.0 m above the ground is 30.85 J

To know more about kinetic energy

brainly.com/question/24360064

#SPJ1

5 0

1 year ago

4. Name three things that all games, no matter where they are played around the world, have in common.

lilavasa [31]

Answer:

Key components of games are goals, rules, challenge, and interaction.

Explanation:

Hope I helped.

3 0

2 years ago

Read 2 more answers

Astronomers observe the motion of four planets that orbit a star similar to the Sun. Each planet follows an elliptical orbit aro

Sergeu [11.5K]

Answer:

planet that is farthest away is planet X

kepler's third law

Explanation:

For this exercise we can use Kepler's third law which is an application of Newton's second law to the case of the orbits of the planets

T² = ( $\frac{4\pi ^2}{ G M_s}$ a³ = K_s a³

Let's apply this equation to our case

a = $\sqrt[3]{ \frac{T^2}{K_s} }$

for this particular exercise it is not necessary to reduce the period to seconds

Plant W

10² = K_s $a_{w}^3$

a_w = $\sqrt[3]{ \frac{100}{ K_s} }$

a_w = $\frac{1}{ \sqrt[3]{K_s} }$ 4.64

Planet X

a_x = $\sqrt[3]{ \frac{640^3}{K_s} }$

a_x = \frac{1}{ \sqrt[3]{K_s} } 74.3

Planet Y

a_y = $\sqrt[3]{ \frac{80^2}{K_s} }$

a_y = \frac{1}{ \sqrt[3]{K_s} } 18.6

Planet z

a_z = $\sqrt[3]{ \frac{270^2}{K_s} }$

a_z = \frac{1}{ \sqrt[3]{K_s} } 41.8

From the previous results we see that planet that is farthest away is planet X

where we have used kepler's third law

3 0

3 years ago

What us the difference in the ways objects move at a speed of a car and an object mkvinf close to the speed of light?​

What us the difference in the ways objects move at a speed of a car and an object mkvinf close to the speed of light?