Physics, 20.09.2020 18:01, love123jones
When a piano tuner strikes both the A above middle C on the piano and a 440 Hz tuning fork, he hears 4 beats each second. The frequency of the piano's:.
A) 444 Hz
B) 880 Hz
C) 436 Hz
D) either 436 Hz or 444 Hz
Answers: 2
Physics, 22.06.2019 11:30, tommyaberman
You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?
Answers: 2
Physics, 22.06.2019 12:10, lks715
Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)
Answers: 3
Physics, 22.06.2019 12:10, anaroles04
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
Physics, 22.06.2019 15:30, linnaefoos2183
This is the number of complete movements of a wave per second.
Answers: 1
When a piano tuner strikes both the A above middle C on the piano and a 440 Hz tuning fork, he hears...
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