How much kinetic energy does a 4kg ball have it is traveling 10 m/s

A puck slides along an icy surface. what makes it slow down?

Opening a door is an example of force because ...

There are two iron rods, labeled A and B. When you touch A to a paperclip and lift up, the paperclip sticks to A. When you touch B to a paperclip and lift up, the paperclip does not move.

Can charging by friction occur only in solids? explain using an example.

The mRNA codon CCU could mutate to?

Un móvil parte del reposo y, al cabo de 5 s, alcanza una velocidad de 5 m/s; a continuación, se mantiene con esa velocidad durante 4 s, y en ese momento frena uniformemente y se detiene en 3 s.

A 2.0-kilogram mass is located 3.0 meters above the surface of Earth. What is the magnitude of Earth's gravitational field strength at this location? (1) 4.9 N/kg (3) 9.8 N/kg (2) 2.0 N/kg (4) 20. N/kg

How long did the astronauts stay on the moon?

Brenda is standing on the beach; the sea is choppy. she observes that the crests of distant waves appear not only smaller, but also closer together than do the crests of waves nearer the beach. this example illustrates a depth cue known as:

If two waves in the same space interfere completely destructively, which of the following occurs? A. The amplitude decreases. B. The amplitude increases. C. The wave speed increases. D. The wave speed decreases.