Physics, 20.12.2019 04:31 AgentPangolin
One object is fired at an angle of ten degrees above the horizontal. a second object is fired at an angle of ten degrees below the horizontal, and a third is fired in an exactly horizontal direction. all three are fired at the same time, but with different (and nonzero) speeds. neglect air resistance and assume that the objects are fired over a perfectly level plain. which of the objects strikes the ground first?
Answers: 3
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An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.
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An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?
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Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
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One object is fired at an angle of ten degrees above the horizontal. a second object is fired at an...
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