Physics, 06.10.2019 23:00 maymayrod2000
To test the resilience of its bumper during low-speed collisions, a 4 060-kg automobile is driven into a brick wall. the car's bumper behaves like a spring with a force constant 8.00 106 n/m and compresses 3.72 cm as the car is brought to rest. what was the speed of the car before impact, assuming no mechanical energy is transformed or transferred away during impact with the wall
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Physics, 22.06.2019 15:30
This is the number of complete movements of a wave per second.
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Physics, 22.06.2019 16:50
Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1Ă105 wm-2k-1 and tâ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
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Physics, 23.06.2019 01:30
Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above
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Physics, 23.06.2019 02:30
If frequency goes up, what happens to wavelength? does it get shorter or longer?
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To test the resilience of its bumper during low-speed collisions, a 4 060-kg automobile is driven in...
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