Physics, 26.03.2020 13:38 Strudl8920
A bullet is fired from a gun at 30 angle to the horizontal with a muzzle velocity of 600 m/s.
A)Find the time to reach the maximum height.
B)Find the maximum height.
c)Find the range
d)Find the velocity just before re-striking the ground. (Ans: 600 m/s at 30 ο
below the horizontal)
Answers: 3
Physics, 21.06.2019 23:00, xojade
Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)
Answers: 3
Physics, 21.06.2019 23:00, hunterdylan01
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
Physics, 22.06.2019 00:30, devaughnnorthcu1565
What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body
Answers: 1
A bullet is fired from a gun at 30 angle to the horizontal with a muzzle velocity of 600 m/s.
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