The multiple reflection of a single sound wave is a/an

a. reverberation.

b. echo.

c. diffraction.

d. refraction.

Does dna have a positive or negative charge?

Which unit abbreviation is a measurement for force

A 100 kg roller coaster car is located at the top of a hill where the height is 20 m. What is the velocity when it reaches the bottom of the hill? 5.5 m/s 11.2 m/s 16.7 m/s 19.8 m/s

When cooling down soup what is the time and temperature specification

During constructive interference two waves travel through the same medium and the effects of the first wave are ___ the effects of the second wave

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature of the medium the type of wave the type of medium

A sound level of 96 dB is how many times as intense as one of 90 dB?

Which type of waves are whale songs in an ocean?

Which is normally greater: static friction or sliding friction on the same object? Static friction is normally greater than dynamic friction. On the same object, static friction and dynamic friction are equal.

A child pulls a wagon 3.0 m using a force of 55 N at an angle 35° above horizontal. The force of friction on the wagon is 12 N. Calculate the net work done on the wagon