A centripetal force always causes a centripetal acceleration. True or False

The diagram shows a ballistic pendulum. A 200 g bullet is fired into the suspended 4 kg block of wood and remains embedded inside it (a perfectly inelastic collision). After the impact of the bullet, the block swings up to a maximum height h.

Which energy-level change shown in the diagram below emits electromagnetic radiation with the longest wavelength? a) an electron moving from 4 to 5 b) an electron moving from 5 to 2 c) an electron moving from 6 to 1 d) an electron moving from 2 to 1

What happens when close off the end of a garden hose?

10. A ball of mass 0.745 kg is dropped from rest from a height of 3.75 m. It rebounds from the ground and reaches a height of 1.78 m, what impulse (specify magnitude and direction) was delivered to the ball by the ground?

Which of the following choices is NOT a hypothesis? A. If someone travels close to the speed of light, time will slow down for them. B. An ice cube made of tap water will melt in less than 30 seconds at room temperature. C.

A stone is thrown with an initial velocity of 20 meters per second straight upward from the edge of a cliff 100 meters above a canyon floor. The stone just misses the cliff'a edge on its way down.

A crowd in a stadium is heard by a man standing 823.2 m away. The man hears the noise 2.5 seconds after the noise occurs. How fast was the sound traveling? What's the answer?

Which is not support the theory of plate tectonics?

the acceleration of a body in free fall depends on the place or the world in which it is, true or false?

A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. the square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.