Abicycle wheel mounted on the front desk of the lecture hall is initially at rest, and then a torque of constant magnitude is applied to the wheel for a time t. after the wheel has turned through an angle of 10 radians, its angular velocity has magnitude 10 rad/s.

a and c

c is 100% but i am confused in a

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.