Physics, 28.01.2020 10:31 tanabugg

Natasha holds the two ends of a string in her hands and then moves her hands up and down so that a wave travels from one end of the string to the other end. in which case will she have a standing wave along the string?

a. the resultant wave rises and falls in amplitude over time and has a frequency equal to that of the waves.

b. the resultant wave has a fixed amplitude and a frequency twice that of the waves.

c. the resultant wave has a fixed amplitude and a frequency equal to that of the waves.

d. the resultant wave rises and falls in amplitude over time and has a frequency twice that of the waves.

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 01:30

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?

Answers: 1

Answer

Physics, 22.06.2019 11:30

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

Answers: 2

Answer

Physics, 22.06.2019 15:20

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Answers: 3

Answer

Physics, 22.06.2019 20:00

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?

Answers: 3

Answer

You know the right answer?

Natasha holds the two ends of a string in her hands and then moves her hands up and down so that a w...

Questions