Physics, 10.09.2021 07:20 voldermort9695
An upward force is applied to lift a 20kg object to a height of 10 meter at constant speed. How much work is done?
Answers: 2
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Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.
Answers: 3
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Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.
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An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?
Answers: 3
An upward force is applied to lift a 20kg object to a height of 10 meter at constant speed. How much...
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