Physics, 17.10.2021 08:20 alexkrol10
What's the force of a pitching machine on a baseball?
Baseballs pitched by a machine have a horizontal velocity of 30 meters/second. The machine accelerates the baseball from 0 meters/second to
30 meters/second In 0.5 seconds. If a baseball has a mass of 0.15 kllograms, the force the machine exerts Is
newtons. Use F= ma, where d = 8g
Answers: 3
Physics, 21.06.2019 18:00, zandariouslee
This question is worth 54 points ! rock falls from a ledge to the ground what energy conversion occurs during this process a potential to kinetic b kinetic to potential c thermal to mechanical d chemical to mechanical
Answers: 2
Physics, 21.06.2019 19:10, shazanah95
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
Answers: 1
Physics, 22.06.2019 18:30, justhereforanswers13
Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.
Answers: 1
What's the force of a pitching machine on a baseball?
Baseballs pitched by a machine have a horizo...
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