Simon is riding a bike at 12 km/h away from his friend Keesha. He throws a ball at 5 km/h back to Keesha, who is standing still on the side walk.

How fast would Keesha say the ball is traveling toward her?

A. 5 km/h

B. 7 km/h

C. 12 km/h

D. 17 km/h

Which statement best describes the temperature of the oceans surface water. A - Areas at high latitudes have the coldest water B - Areas with a high salinity have the coldest water C - Areas close to the equator have the coldest water D - Areas with

Classify the items based on whether they are or are not matter. toothpaste, happiness, gasoline, sound, bacteria, cell

2. The nucleus holds two particles: a. proton and electron b. proton and neutron c. neutron and electron

On the Celsius scale what temperature does water boil

Which term describes the time it takes for an object to complete one full cycle of motion on a spring? A. period B. frequency C. amplitude D. time E. force

What two factors determine how fast weathering occurs

A sound that's produced by a single wave at a constant frequency and with no overtones is called

Which of the following is ignored when determining the relative mass of atoms? protons nucleus electrons. neutrons

Gamma radiation can be significantly reduced by ... A sheet of paper Air A 3 mm thickness of aluminium Several cm of lead

Why is it possible to remove a paper without moving the object on it. (apply newton's law)