Physics, 27.10.2019 04:43, tursunovarukhshona
During a baseball game, a batter hits a high pop-up. if the ball remains in the air for 6.22 s, how high does it rise? the acceleration of gravity is 9.8 m/s 2 . answer in units of m.
Answers: 2
Physics, 22.06.2019 10:00, amyaacrawford86
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Physics, 22.06.2019 13:40, crayons18
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
Answers: 2
During a baseball game, a batter hits a high pop-up. if the ball remains in the air for 6.22 s, how...
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