Ask question

Ask question

All categories

2 years ago

5

An object is moving with a velocity that approaches the speed of light. how does the length of the moving object appear to a sta

tionary observer relative to its rest length?

2 answers:

Evgen [1.6K]2 years ago

7 0

EVERY moving object appears shorter to a stationary observer. The effect is too small to see unless the object is moving really really fast.

yaroslaw [1]2 years ago

4 0

Shorter (length contraction)

You might be interested in

a spring is used to launch a ball vertically into the air. the spring has a spring constant of 200N/m and is compressed by 5 cm.

zhannawk [14.2K]

Answer:

2.55 m

Explanation:

Elastic energy = gravitational energy

½ kx² = mgh

h = kx² / (2mg)

h = (200 N/m) (0.05 m)² / (2 × 0.010 kg × 9.8 m/s²)

h = 2.55 m

8 0

2 years ago

Sharon is driving on a straight road. She is driving north, and her speed is

sdas [7]

Answer:

b

Explanation:

b is the correct answer

4 0

2 years ago

For an object on a flat surface, the force of gravity is 10 newtons downward and the normal force is 10 newtons upward. The appl

bezimeni [28]

3 Newtons toward the right because Newton’s second law:
F = ma
15N - 12N = ma
3N = ma
(With the right being the positive direction and the left the negative direction)

3 0

1 year ago

The change in momentum of an object is equal to the Question 4 options: Force acting on it times its velocity. impulse acting on

lesya [120]

Answer:

impulse acting on it

Explanation:

The impulse is defined as the product between the force applied to an object (F) and the time interval during which the force is applied ( $\Delta t$ ):

$I=F\Delta t$

We can prove that this is equal to the change in momentum of the object. In fact, change in momentum is given by:

$\Delta p = m \Delta v$

where m is the mass and $\Delta v$ is the change in velocity. Multiplying and dividing by $\Delta t$ , we get

$\Delta p = m \frac{\Delta v}{\Delta t} \Delta t$

and since $\frac{\Delta v}{\Delta t}$ is equal to the acceleration, a, we have

$\Delta p = ma \Delta t$

And since the product (ma) is equal to the force, we have

$\Delta p = F \Delta t$

which corresponds to the impulse.

5 0

3 years ago

A ____ is one of the tiny dots of light that form a grid on your screen.

Degger [83]

Hi there

The answer is pixel

Hope this helps

8 0

2 years ago

Read 2 more answers