Identify the machines in which both a lever and a wedge are used.

-Shovel

-Scissor

-Bathtub knob

-Ladder

Our solar system is located in the center of the milky way galaxy. true or false

What energy sources do not convert the energy of motion into electrical power

What episode wiped out many insect species in the world? a. Deposition c. Permian extinction b. Mesozoic d. Pangea

How would it be possible for an object to be traveling with a constant speed and still accelerating?

Why do we see lightning before we hear the accompanying Thunder

A cyclist rides her bike 7 mi east, and then 2 mi north before taking a break. Then she rides 5 mi east and then 3 mi north. What are the magnitude and direction of the cyclist's resultant displacement? magnitude: 13.0 mi; direction: 22.

What is the low end of the range of surface temperature of white stars

The larger the push, the larger the change in velocity. This is an example of Newton's Second Law of Motion which states that the acceleration an object experiences is

Dr. Halite combined sodium metal with chlorine gas to make sodium chloride (table salt). the chemical reaction used up all of the metal and all of the gas. If Dr.

Which planet, when viewed through a telescope, appears as a reddish ball interrupted by some permanent dark regions that change intensity?