The human ear is most sensitive to sound that has a frequency of about 4000 Hz. Assume that the speed of sound in air is 340 m/s.

What is the wavelength of a sound heard in the air with this frequency?

A. 0.043 m

B. 0.085 m

C. 12 m

D. 340 m

How many times does the kinetic energy of a car increase when traveling 60 mph as opposed to traveling 30 mph? K. E. increases

A marble with a mass of 1.5 grams rolls at a constant rate of 0.50 cm/s across a table. What is the magnitude of the marbles momentum?

How many water molecules does the hydrate LINO, •H2O have?

A wire with a resistance of 20 is connected to a 12 battery. What is the current flowing through the wire?

Which process is associated with an increase in kinetic energy, and what experimental evidence supports this? A. the transition period during which a solid is changing state into a liquid; its temperature is remaining constant B.

Explain how gamma rays are produced by energy

A mechanical wave may be described as a disturbance that is transported through a medium via the mechanism of particle-to-particle interaction. Which of these is not classified as a mechanical wave? A) earthquake B) light C) sound D) water

How many paths do the electrons have to flowlin a series circuit?

A force of 6 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching it from its natural length to 8 in. beyond its natural length?

You are planning to make an open rectangular box from an 8-inch by 15-inch piece of cardboard by cutting congruent squares from the corners and folding up the sides. what is the largest volume you can make from a box this way in cubic inches?