A 15 g bullet travelling at 200 m/s strikes a 3 kg block of wood. A) If the bullet remains inside the block, how fast will the bullet and the block
move together? B) If the bullet emerges from the block at 120 m/s, how
fast is the block moving?

Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells? (a)gamma rays (b)visible light (c)infrared light (d)microwaves

When you turn on a battery-operated device, an electrical circuit is

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.