How do you separate the mixture of rocks and sand

Twenty students were surveyed to find out how many hours of tv they watch during a school week

What is the movement of the ocean floor called"?

G (where g=9.8 m/s2). If an object's mass is m=10. kg, what is its weight?

Which situation best describes the act of reducing? paying bills online instead of sending paper through the mail donating gently used clothes and household items using plastic bags a second time to avoid buying new ones buying products that can be

Why do you suppose the modern horse has a longer foot than its ancestors? A) allowed it to swim faster B) allowed it to reach higher trees C) allowed for greater chance of mating D) allowed greater speed to outrun predators

A microwave oven operating at 120 volts is used to heat a sandwich if the oven draws 12.5 amperes of current for 45 seconds what is the power dissipated by the oven?

Which of the transformers are step-up transformers? Which of the transformers are step-down transformers?

1 A plane moving at 30m/s drops a load 200m down to the ground. How long did it take to hit the ground.

Can a body be in equilibrium if it is in motion? Explain

What is the average speed in kilometers per second of the earth around the sun?