A ball of mass 200 g rolls along the ground at a speed of 5.2m/s. calculate the kinetic energy of the ball. Give answer to one decimal place.

What is the mass of an object that requires a force of 30 n to accelerate at a rate of 5 m/s2?

A load of 600N is raised by an effort of 2000 by using I meter long crowbar. If the lod is 20cm away from the fulcrum, what is the efficiency of the crow-bar?

What is the valence of selenium

How far will u go if your wheel' diameter 34in?

A boy jogs 250 meters in 110s what is the average speed

A plastic rod rubbed with a duster attracts bits of paper becauseof a what force

What is the particle that an atom can lose or gain in order to form a charged ion

If you have 0.306 m3 of water at 25.0°C and add 0.102 m3 of water at 95.0℃, what is the final temperature of the mixture? Use 1000 kg/m3 as the density of water at any temperature. Number O Previous ⓧ Give Up & View Solution.

If b is the amplitude of the magnetic field vector, find the complete expression for the magnetic field vector b⃗ of the wave.

An electron and a proton are separated by a distance of 1 m. What happens to the size of the force on the first electron if a second electron is placed next to the proton?