A small increase in aperture will result in a small increase in brightness.
Non metal because if the wire was unknowingly live, it could shock him and the current would travel through metal gloves.
Answer:
the moment of inertia of the wheel is is 6.245 kg.m²
Explanation:
Given;
applied force, f = 22.04 N
radius of the wheel, r = 0.34 m
angular acceleration, a = 1.2 rad/s²
The moment of inertia of the wheel is calculated as;
Therefore, the moment of inertia of the wheel is is 6.245 kg.m²
When hot metal plate is placed in air at room temperature
Then due to temperature difference heat flow will start from higher temperature to lower temperature
Here heat flow is from hot plate to room
The heat flow here is of two types
1. Convection flow of heat
In this phenomenon the thermal energy is transferred from plate to room by the thermal motion of air molecules in the room
2. Radiation heat flow
In this phenomenon the thermal energy is transferred by electromagnetic waves which transmits from the plate
This flow of heat will continue till the temperature of room and plate will become equal
