Abigail roller skates for 4 hours 45 minutes with a constant speed of 12 mph and then another 1 hour 35 minutes with a constant speed of 12 mph. What distance did she go?

the mass of an electron is 9.11x10^-31kg. How far apart would two electrons have to be in order for the elctric force exerted by each on the other to be equal to the weight of an electron

A block is sitting on a platform 20 m high. It weighs 50 kg. How much potential energy does it contain?

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Technician A says that low compression on a single cylinder will cause an engine not to start. Technician B says that low compression on a single cylinder will affect the engine's cranking sound. Who is correct?

What should happen to the demand for speed (measured by the average speed on highways) once airbags are included on cars?

The mass of a newborn baby is 4.2 kilograms what is the baby's weight? (The acceleration due to gravity is 9.8 m/s2)

What holds the atoms together in a covalent bond

The sun is the centermost star of our solar system. a. True b. False

When an electron moves from a lower to a higher energy level

Which of the following is all matter made of? A. Hot particles B. Cold particles C. Constantly moving particles D. Nonmoving particles