An upward force of 18 n is applied via a string to lift a ball with a mass of 1.5 kg.
a) what is the net force acting upon the ball?
b) what is the acceleration of the ball?

Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

What is the temperature in degrees celsius of a substance with a tempature of 49k

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground. what is his gravitational potential energy above the ground?