An apple fell 4 m from the top of the tree to the ground in 0.9 s. what was its average speed?

a. 3.6 m/s

b. 4.0 m/s

c. 4.4 m/s

d. 4.5 m/s down

What is Kinetic Molecular Theory? Explain.

What is the gravitational force between two 60.0 kg people sitting 100 m apart?

The cycle of the moon through its phases, or the synodic month, is a. 21 days long. b. 27 1/3 days long. c. 29 1/2 days long. d. 30 days long.

Light is an example of a mechanical wave in nature? true or false

An ionic compound is a compound that consists of molecules made of atoms that are covalently bonded. True or False?

What is the fundamental unit for measuring mass in the metric system?

Why are some craters on the moon bigger than others

What object oriented feature can we use to have a single test program, with one set of method calls in which the user can decide which bag implementation (array - or link-based) needs testing?

What might motivate someone to study forensics

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to five times her weight as she goes through the dip. If r = 17.