Which voice can produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m? Check all that apply.

bass

baritone

tenor

contralto

sopran

A 30,000kg train moves at 45m/s How how much kinetic energy with the train have? A. 30,375,000J B. 30,375J C. 60,750,000J D. 675,000J

What is the mass m of the elevator? use g=10m/s2 for the magnitude of the acceleration of gravity.

What is the purpose of the three R's of resource management? A. to remove resources from homes B. to consume increasing amounts of natural resources C. to conserve resources D. to spread out landfill areas

An African elephant can reach height of 13 feet and possess a mass of as much as 6000kg determine the weight of an African elephant in Newton's

a 4kg metal block absorbs 5000j of energy and increases to a temperature of 22°c. the metal has a specific heat capacity of 250j/kg°c. what was the original temperature of the block?

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.