nh A 1.8 kg book is resting on a table. The gravitational field strength = 9.8 N/kg. Calculate the weight of the book. Give your answer to 2 significant figures.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?