What are three changes in motion show that an object is accelerating

Explanation:

What shows that an object is accelerating

1. If the velocity is increasing.

From equation of motion

a = ∆v / t

So, if the velocity increases with time, the acceleration increases. But if it decreases with time, it decelerating.

2. Also, from newton second law,

F = ma

a = F / m

Where a = acceleration

F is force applied

m is the mass

So, if the force is increase and the mass is reduced, then the acceleration is increase.

3. Also, in. Circular motion,

a = w²r

Where

a is linear acceleration

w is angular speed

r is the radius.

So, when the angular speed is increased, then the linear acceleration is increased.

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.