A8.50 g bullet has a speed of 1.50 km/s . what is the kinetic energy of the bullet? express your answer to three significant figures and include the appropriate units.

Player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. what is the horizontal velocity component of the ball to the nearest tenth of a m/s?

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?