How does Newton's third law explain how a rocket is launched upward? A. The force of Earth's gravity balances with the force of the rocket engines. B. The mass of the rocket determines how much force is needed to move it into orbit. C. The rocket will remain motionless on the launchpad until an unbalanced force is applied. D. The force it exerts on its exhaust gases is equal to the force the exhaust gases exert on the rocket.
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Physics, 22.06.2019 16:00
Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?
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Physics, 22.06.2019 19:30
Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?
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How does Newton's third law explain how a rocket is launched upward? A. The force of Earth's gravity...
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