Physics, 25.10.2019 05:43, gretchcampbell
If the frequency of a sound wave is 250 hertz and it's wavelength is 1.36 m, what is the waves velocity? a) 250 m/s b) 340 m/s c) 200 m/s d) 120 m/s
Answers: 1
Physics, 22.06.2019 01:40, janeou17xn
Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied
Answers: 1
Physics, 22.06.2019 02:30, dxpebetty64
Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.
Answers: 1
Physics, 22.06.2019 06:40, animaljamissofab
How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.
Answers: 1
If the frequency of a sound wave is 250 hertz and it's wavelength is 1.36 m, what is the waves veloc...
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