Answer:
higher temperature of copper.
Explanation:
less specific heat capacity.
No, the light from the overhead would show you only the coin outline.
Answer:
Energy use by bulb = 36 kJ
Explanation:
Power of bulb = 120 W
Time of working = 5 minutes =5 x 60 = 300 seconds.
Power = Work / Time
Work = Power x Time
= 120 x 300
= 36000 J = 36 kJ
So. energy use by bulb = 36 kJ
Answer:
T = 0.607 seconds
Explanation:
Given:
Mass, M = 1.50 × 10⁻² kg
Radius, R = 5.50 × 10⁻² m
Now,
the time period in terms of moment of inertia is given as:
.....................1
where, T is the time period
g is the acceleration due to gravity
I is the moment of inertia
Now,
Moment of inertia, I is given as:

on substituting the moment of inertia in the equation 1, we get

or

on substituting the valeus, we get

or
T = 0.607 seconds
Hence, the time period is 0.607 seconds