The loudness of a sound is its frequency. true or false?

A boy pulls a sled 46 m across a flat field with a force of 120 N. The force acts on the sled through a rope at a 23° angle with the horizontal. What is the work the boy does on the sled? (Round your answer to two significant figures.)

The process of changing a property of a wave to transmit information is called.

A 5kg block of iron is heated to 800degree C. it is placed in a tub containing 2litre of water at 15degree C. Assuming all the water is brought to the boil rapidly calculate the mass of water which boile off.

While studying balanced and unbalanced forces, Jose and Gina test what they have learned by Jose applying 10 Newtons of forces to one side of a box and Gina applying 8 Newtons of force to the other side of the box. A. The box does not move. B.

A bird flies from the ground to a height of 200 m if the bird has a mass of 1.5 kg how much gravitational potential energy does it gain A 500 j B 1960 j C 2940 D 300 j

Imagine a Carnot engine has a hot reservoir of 680 K and a cold reservoir of 220 K. What is the efficiency of the engine?

The loudness of a sound is its frequency. true or false?

Will loud sounds from traffic near a school break glass objects inside the school

A bat traveling at 10m/s for 10 seconds has traveled how much distance

A wave is traveling through a medium. as it travels, it displaces particles of matter in the same direction as the wave is traveling. this type of wave is a