Physics, 14.09.2019 01:30 ydesoto0513
Paintball guns were originally developed to mark trees for logging. a forester aims his gun directly at a knothole in a tree that is 4.0 m above the gun. the base of the tree is 15 m away. the speed of the paintball as it leaves the gun is 50 m/s. how far below the knothole does the paintball strike the tree? express your answer with the appropriate units.
Answers: 1
Physics, 22.06.2019 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
Answers: 3
Physics, 22.06.2019 05:20
Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.
Answers: 2
Physics, 22.06.2019 05:30
Blank liquids and gases exert a buoyant force on objects placed in them
Answers: 3
Physics, 22.06.2019 22:00
Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?
Answers: 1
Paintball guns were originally developed to mark trees for logging. a forester aims his gun directly...
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