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3 years ago

I WILL GIVE BRAINLIEST

Physics

2 answers:

lidiya [134]3 years ago

8 0

Answer:

A and B

Explanation:

A P E X

Vaselesa [24]3 years ago

3 0

<h2><u>Answer:</u></h2><h2>A. Displacement</h2><h2>B. Time</h2><h2 /><h2>Your Welcome ❤</h2>

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What quantity is the rate of change of velocity? Displacement Acceleration Final velocity

MariettaO [177]

Answer:

Acceleration

Explanation:

The quantity of the rate of change of velocity is termed the acceleration of the body.

Acceleration is the rate of change of velocity with time;

A = $\frac{v - u}{t}$

A is the acceleration

v is the final velocity

u is the initial velocity

t is the time taken

7 0

3 years ago

A truck tire rotates at an initial angular speed of 21.5 rad/s. The driver steadily accelerates, and after 3.50 s the tire's ang

erma4kov [3.2K]

Given:

initial angular speed, $\omega _{i}$ = 21.5 rad/s

final angular speed, $\omega _{f}$ = 28.0 rad/s

time, t = 3.50 s

Solution:

Angular acceleration can be defined as the time rate of change of angular velocity and is given by:

$\alpha = \frac{\omega_{f} - \omega _{i}}{t}$

Now, putting the given values in the above formula:

$\alpha = \frac{28.0 - 21.5}{3.50}$

$\alpha = 1.86 m/s^{2}$

Therefore, angular acceleration is:

$\alpha = 1.86 m/s^{2}$

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3 years ago

The spring constant for the spring in above Table is 20 N/m.

satela [25.4K]

The answer is 0.025J.

W=1/2*k*x^2
W=1/2*20*0.050^2
W=0.025J

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3 years ago

An _________ is a light ray moving toward a boundary.

Sveta_85 [38]

When A Light Ray Hits A Boundary,,,,, it is called refraction.

6 0

3 years ago

The brakes of a lorry are in a poor condition

Vlada [557]

Answer:

friction

Explanation:

Her brakes will squeak and possibly slide or skid on concrete due to her brakes.

BUT it really depends on the condition of the wheels. Now it matters on the surface as well. Has the road been eroded? what has happened with her brakes? and what texture are the wheels? can seismic waves travel through them?

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3 years ago