Answer:
speed = distance/time
Explanation:
speed = 150/30
speed =5m/s
you were running fast .....5m/s is a good speed
Explanation:
It is known that relation between torque and angular acceleration is as follows.
and, I =
So,
= 4
So,
= 1
as
=
Hence,
Thus, we can conclude that the new rotation is times that of the first rotation rate.
Answer:
Maximum permitted surface crack length is 1.29 mm
Explanation:
As per the question:
Tensile stress,
Surface energy of magnesium oxide, SE =
Modulus of elasticity of the material, E = 225 GPa =
Now,
To calculate the maximum allowable surface crack length:
Answer:
The pressure in the water is
Explanation:
Given that,
Depth = 101 m
Let P be the pressure at the bottom of water at a depth
We need to calculate the pressure in water
Using formula of pressure
Where, = atmospheric pressure
= pressure in water
Put the value of in to the formula
Put the value into the formula
Hence, The pressure in the water is