Physics, 06.03.2022 07:30 wittlerylee34
A rocket is launched and travels straight up at a constant velocity of 750 mph. An observer is 1.5 miles away watching the launch. How fast is the distance from the observer to the rocket increasing when the rocket is 2 miles high
Answers: 1
Physics, 21.06.2019 14:10
Gam radio signals can usually be heard behind a hill, but fm often cannot. that is, am signals bend more than fm. explain. (radio signals, as we shall see, are carried by electromagnetic waves whose wavelength for am is typically 200 to 600 m and for fm about 3 m.)
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Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
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A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?
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A rocket is launched and travels straight up at a constant velocity of 750 mph. An observer is 1.5 m...
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