Physics, 21.01.2021 22:30 avisconti571
A particle starts at t = 0 at the origin of a coordinate system with a velocity of 1.32 m/s in the negative y direction. There is acceleration on the particle of 1.94 m/s2 in a direction 35 degrees above the x axis. (a) At what time (s) does the y component of the particle’s position equal 3.38 m? (b) At that time, what is the x component of position (m)? At that time, what is the (c) x component (m/s) of velocity? At that time, what is the (d) y component (m/s) of velocity?
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Physics, 22.06.2019 17:30
Which planet do you think would be easiest for humans to colonize some day?
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Physics, 22.06.2019 22:00
Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?
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Two cans on a sunny window one black and the other white construct and explanation of the effect of sun will have on both cans over a two hour period?
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Conventional hot-water heaters consist of a tank of water maintained at a fixed temperature. the hot water is to be used when needed. the drawback is that energy is wasted because the tank loses heat when it is not in use, and you can run out of hot water if you use too much. some utility companies are encouraging the use of on-demand water heaters (also known as flash heaters), which consist of heating units to heat the water as you use it. no water tank is involved, so no heat is wasted. a typical household shower flow rate is 2.50 gal/min (9.46 l/min ) with the tap water being heated from 51.0 ˚f (10.6 ˚c) to 120 ˚f (48.9 ˚c) by the on-demand heater.what rate of heat input (either electrical of from gas) is required to operate such a unit, assuming that all the heat goes into the water?
Answers: 3
A particle starts at t = 0 at the origin of a coordinate system with a velocity of 1.32 m/s in the n...
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