An object has a mass of 12.8 kg and a velocity of 8.4 m/s. what is the kinetic energy of the object?

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

Which is not true about oxygen-17 and oxygen-18?