What is the velocity in meters per second of a runner who runs exactly 110 m toward the beach in 72 seconds.

True or False A scientific theory generally is accepted as false until it is proved?

You're outside on a cold day (Tout = 0 °C) listening to your iPod with an external circular speaker having a diameter 0.0550 m. Because of the cold you decide to go inside where the temperature is 27.5 °C. If your favorite song begins with a 8.

In order to be considered work, the components that must be present are? ... A) a force and a movement in the same direction as the force. B) an action which causes movement and an opposite reaction. C) an action which causes no movement or reaction.

Giant and supergiant stars are rare because

Can you change the weight of something without changing the mass?

A student measured the mass of a rock to be 19.8 grams; the actual mass was 18.6 grams. What was the student's percent deviation?

The height of the Washington Monument is measured to be 170 m on a day when the temperature is 35.0ºC. What will its height be on a day when the temperature falls to - 10.

Which of the following is a way humans have impacted the rainforest, but not the tundra?

Explain what happens when a massive star ends its life as a supernova.

Freckles are a dominant trait in humans. Both of the girls have the genotype FF for freckles. If either one marries a man with no freckles, what are the chances that their children will have freckles? A) 0% B) 50% C) 75% D) 100%