A ball is thrown upward in the air, and its height above the ground after t seconds is H (t) = 57 t - 16 t 2 feet. Find the time t when the ball will be traveling upward at 14.25 feet per second.

After brushing, Fluffy's fur has a charge of + 8.0 * 10-9 coulombs and her plastic brush has a charge of - 1.4 * 10-8 coulombs. If the distance between the fur and brush is roughly 5.

Imagine you see a rainbow. What caused the rainbow?

Why can television satellite which broadcast information as electromagnetic radiation send signals from the vacuum space

In the United States, the electricity generated by hydropower is about a. twice that generated by solar and geothermal. b. equal to that generated using wind technologies. c. twice as much as that generated by wind, solar, and geothermal. d.

1) Why do the different rocks exposed in the Grand Canyon appear in layers for the most part? Where are the oldest layers of rock found? Where are the youngest rocks found?

What are some of the benefits of learned optimism that have been found in research? O A. Fewer health problems O O B. All of these C. Making more money O D. A lower divorce rate

Katie runs 6 km in 0.6 hour, then 5 km in 0.5 hour. Katie's average speed is __ per hour.

A derived unit is a combination of fundamental units. Which of the following is an example of a derived unit? a) centimeter (used to measure distance) b) gram (used to measure mass) c) cubic centimeter (used to measure volume)

Technician A says that a heater core leak can be the result of the coolant wearing a hole through the core. Technician B says that a core leak can be caused by chemical action eating a hole through the core. Who is correct?

If the Coast Guard warns of a giant wave of water approaching the shore as a result of a major earthquake, they are warning of a. an aftershock. b. liquefaction. c. a tsunami. d. landslides.