What charge does aluminum have?

A Styrofoam slab has thickness h and density ρs. When a swimmer of mass m is resting on it, the slab floats in fresh water with its top at the same level as the water surface. Find the area of the slab.

A moving object has a kinetic energy of 20 J. if it's velocity doubles, it's kinetic energy would be 1) 40 J 2) 60 J 3) 80 J 4) 100 J

Why is no work done when you hold a book in place over your head? A A force is applied to the book, but there is no movement. B The book has motion, but no force is applied to it. C A force is applied to the book, causing it to move.

True or False? One way that consumers can encourage the efficient use of energy by industries is to prevent boycotts of products produced by companies that are inefficient or wasteful in their energy use.

Light waves will bend when passing from one transparent substance to another unless: a. Constructive interference occurs / b. Destructive interference occurs / c. The light hits the substance at an angle of 60 degrees / d.

What acceleration does a 9 N force produce in a 3 kg object? Make sure to show your work. (The 4 steps)

What type of mixture is Skittles candy?

What is the relationship between a planet's position in the solar system and the length of that planet's year?

The process of how rocks can tell us how old the earth is

why does a bicycle fitted with solid tyres give a bumper ride than on which has air fitted tyres