Answer:
Explanation:
The momentum of inertia of the solid sphere is :
m is the mass of solid sphere
r is the radius of sphere
Since, 
........................(1)
Let r' is the radius of second sphere such that, r' = 2r. New moment of inertia is given by :
Similarly,
.
........................(2)
Dividing equation (1) and (2) as :
So, the ratio of their moments off inertia is 32:1
I believe #1 is b and # 2 is D
It rises till all of its Kinetic energy is converted into potential energy.
so, mgh=(1/2)m(v^2)
so, h=(v^2)/2g = 12*12/(2*9.81)=7.34 m
Answer:
Explanation:
given,
Temperature of heat engine operate between
Th (temperature in hot reservoir) and Tc(temperature in cold reservoir)
amount of heat released to = Qc
to find maximum amount of work = ?
now,
efficiency of heat engine
now,
maximum work =
above expression gives the expression of maximum amount of work.
Answer:
1a- Malleable and Rigid
b- when glass is heated up, it can stretch like plastic, (sorry I can't think of a second one)
Explanation:
