What kind of simple machine are you using if you pry a nail from a board with the back of a hammer

Copernicus's model of the solar system gave much better predictions than the model of Ptolemy. True or False?

Two very small planets orbit a much larger star. Planet A orbits the star with a period TA. Planet B orbits the star at four times the distance of planet A, but planet B is four times as massive as planet A.

A ball is thrown horizontally from the roof of a building 56 m tall and lands 45 m from the base. What was the ball's initial speed?

Which of the following is considered an individual sport?

A flywheel in the form of a uniformly thick disk of radius 1.23 m has a mass of 93.6 kg and spins counterclockwise at 369 rpm. Calculate the constant torque required to stop it in 2.25 min.

Which describes how radiation moves? radiation moves from a cooler object to a warmer object radiation moves from a warmer object to a cooler object radiation moves from a warm object to an object of the same temperature radiation moves from a cool

Why does the closed top of a convertible bulge when the car is riding along a highway? Why does the closed top of a convertible bulge when the car is riding along a highway? The air pressure is greater outside the car than inside.

Is a white shirt cooler or warmer in the sunlight?

A stone is thrown vertically upward with a speed of 18.0. (a) How fast is it moving when it reaches a height of 11.0? (b) How long is required to reach this height? For part A) I did: y=11m, g=9.

What object or class of objects makes up most of the solar systemâs mass?