Physics, 26.03.2021 15:50 jackrider6563
Arnold pushes straight up on a 130-kilogram weight with a force of 1,500 N. Which of the following diagrams shows the net force acting on the weight? Assume the acceleration due to gravity is 10.0 m/s/s.
Answers: 1
Physics, 22.06.2019 13:00
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius Ļa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature Ļr of its path, both as observed by the nonrotating skydiver.
Answers: 3
Physics, 22.06.2019 18:30
Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?
Answers: 1
Physics, 22.06.2019 22:50
Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligibleāabout 1 2000 of the protonās mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ionās circular orbit?
Answers: 1
Arnold pushes straight up on a 130-kilogram weight with a force of 1,500 N. Which of the following d...
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