Answer:
-1.09m/sec^2
Explanation:
Acceleration= (Vf-Vi)/Time
=12-54.8
= -42.8
= -42.8/39
=-1.09
-ve sign is due to recoil of train
as it suddenly hits brakes.
One type is microwaves
Microwaves are used for radio and radar communications
Also used to cook food
Answer:
<h2>5 m/s²</h2>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula

f is the force
m is the mass
We have

We have the final answer as
<h3>5 m/s²</h3>
Hope this helps you
<span>a. intermolecular attractions.............</span>