Acannonball of mass 28.7 kg is shot into the air at an angle of 45 degrees with respect to horizontal. at the top of its ballistic trajectory, the cannonball suddenly explodes into two separate pieces, a smaller piece this is 1/3 the original mass, and a larger piece that is 2/3 the original mass. the smaller piece ends up landing right back at the spot where the cannonball was originally launched, 16.3 seconds after it was launched. how far from the launch site does the larger piece travel? you can neglect the effects of air resistance
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Physics, 21.06.2019 19:40
Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.
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Physics, 22.06.2019 07:30
Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud
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Physics, 22.06.2019 16:00
What part of the ear is names after tools, such as the hammer and the anvil?
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Acannonball of mass 28.7 kg is shot into the air at an angle of 45 degrees with respect to horizonta...
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