Two bodies were thrown simultaneously from the same point at time t = 0, one straight up and other at an angle 30° with the horizontal with equal intial speed of 30 m/s. The magnitude of relative velocity of two bodies attime t=1swillbe(g=10m/s2)
(1) 30 m/s (2) 20 m/s
(3)57m/s (4)105m/s
Answers: 1
Physics, 21.06.2019 17:00
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Physics, 22.06.2019 23:40
Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.
Answers: 3
Two bodies were thrown simultaneously from the same point at time t = 0, one straight up and other a...
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