Samantha is making waves in a tub of water by pushing a block up and down at one end of the tub. She observes the properties of each of the waves. What can she say about the properties of the waves?

The cheetah can maintain its maximum speed for only 7.5 s. What is the minimum distance the gazelle must be ahead of the cheetah to have a chance of escape? (After 7.5 s the speed of cheetah is less than that of the gazelle.) Answer in units of m.

What are the different types of precipitation you encounter in your daily life?

Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass m and radius of orbit L.

On a cold day, a heat pump absorbs heat from the outside air at 14°F (-10°C) and transfers it into a home at a temperature of 86°F (30°C). Determine the maximum κ of the heat pump.

Classify the objects as being magnetic or nonmagnetic. wooden table steel tank glass marbles iron ball nickel hinge silver medal

When an atom loses an electron, it becomes a a. positive ion. b. negative ion. c. neutral ion. d. neutral atom.

A hydraulic lift has two pistons: a small one of cross-sectional area 5.00 cm2 and a large one of cross-sectional area 300 cm2. What minimum force must be applied to the small piston in order for the large piston to lift a truck of mass 4500 kg

What is the meaning of the phrase "grand unified theories" when applied to particle physics and cosmology?

A 26.0 kg wheel, essentially a thin hoop with radius 1.30 m, is rotating at 297 rev/min. It must be brought to a stop in 23.0 s. (a) How much work must be done to stop it? (b) What is the required average power? Give absolute values for both parts.

A net force of 200 newton's is applied to a wagon for 3 seconds. this causes the wagon to undergo a change in momentum of