In the javelin throw at a track-and-field event, the javelin is launched at a speed of 23 m/s at an angle of 34° above the horizontal. as the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes. how much time is required for the angle to be reduced from 34° at launch to 16°?
Answers: 3
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Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)
Answers: 1
In the javelin throw at a track-and-field event, the javelin is launched at a speed of 23 m/s at an...
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