Oil is a lubricant which helps increase friction. when u spread sand on a place where oil is spilled the sand reduces friction between road and vehicle tire. the vehicle wont skid.
Answer:
86.47 V
Explanation:
It will be multiplied by the ratio of the windings
980/340 * 30 = 86.47 v
Explanation:
It is known that relation between velocity and height is as follows.
v = 
where, g = acceleration due to gravity = 9.8 
h = height = 0.2 m
Therefore, velocity is calculated as follows.
v = 
= 
= 3.92 m/s
Also,


Putting the given values into the above formula as follows.

= 
= 
=
m/s
or, =
m/s
Thus, we can conclude that recoil speed of the Earth is
m/s.
Explanation:
Note that resonance can only occur when the natural frequency is greater than the damping rate, multiplied by the square root of 2. If the damping is too large, then resonance cannot occur.
The ball rolled for 13.2 s
<h3>Further explanation</h3>
Speed is scalar and no direction

A bowling ball rolls 33 m, with average speed = 2.5 m/s
So elapsed time :
