The current in a hair dryer measures 24 amps. The resistance of the hair dryer is 13 ohms. What is the voltage?

izes water on the surface of Mars? a. Billions of years ago there were lakes and rivers on the surface of Mars, but none exist today. b. There is no evidence that water ever existed on the surface of Mars. c. There have been lakes and ri

A certain steam turbine is designed to be used as both a power generator and a pump. When used as a generator, the turbine provides enough power to do 3 * 10^10 J of work in 1 min. What is the power output of the turbine?

What is meant by the centre of mass of body.

Which of the following will cause a decrease in gas pressure in a closed container? a. lowering the temperature b. reducing the volume c. adding more gas d. both a and b

Two individuals start the same training program at the same time, but one is able to grow muscle faster and larger than the other. What is the least likely explanation for this? A. One individual was born with more muscle fibers. B.

How do whales bats and dolphins use echolocation? A To scare away predators B To attract mates C To orient them selves and find food D To tell animals of there species where they are

How much force would be needed to move a car with the mass of 100kg to an acceleration of 5m/s/s?

A pendulum bob is made from a sphere filled with water. What would happen to the frequency of vibration of this pendulum if the sphere had a hole in it that allowed the water to leak out slowly?

Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball above the gym floor when its total mechanical energy is 41.70 J? Round to the nearest number.

Which of the following is the best description of a graph? A. Equations that can be plotted B. A representation of an equation C. Independent and dependent variables D. x and y lines