1. Define the term 'centre of gravity of a body'.

How does Friction Impact work?

A 0.5 kg ball moves in a circle that is 0.4 m in radius at a speed of 4.0 m/s. Calculate its centripetal acceleration. (40 m/s2).

How does the kinetic energy of a substance's particles in the liquid phase compare to their kinetic energy in the gas phase?

What's the equation of power A: Power=work/distance B: Power = speed/energy C: Power=speed/distance

The components of a 15-meters-per-second velocity at an angle of 60.° above the horizontal are (1) 7.5 m/s vertical and 13 m/s horizontal (2) 13 m/s vertical and 7.5 m/s horizontal (3) 6.0 m/s vertical and 9.0 m/s horizontal (4) 9.

How to find acceleration

Which of the following involves the emission of a particle that has the same mass of an electron with a positive charge. a. alpha decay c. positron emission b. beta decay d. nuclear forces

Which of the following is an example of distance

What outside force slows down a parachute?

A cable applies a vertical force to a crate with a mass of 70.0 kg. It first lifts the crate to a height of 12.0 m above the floor, and then lowers it back to the floor. What is the total work done by the force?