Physics, 17.09.2019 19:00 genyjoannerubiera
Julie throws a ball to her friend sarah. the ball leaves julie's hand a distance 1.5 meters above the ground with an initial speed of 16 m/s at an angle 28 degrees; with respect to the horizontal. sarah catches the ball 1.5 meters above the ground. 1) what is the horizontal component of the ball’s velocity right before sarah catches it?
Answers: 2
Physics, 22.06.2019 05:10, delawdermia27
Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?
Answers: 2
Physics, 22.06.2019 14:10, chuchi24
The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
Answers: 3
Physics, 22.06.2019 14:10, momo842
Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?
Answers: 1
Julie throws a ball to her friend sarah. the ball leaves julie's hand a distance 1.5 meters above th...
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