Physics, 16.11.2020 05:10 daquan20035
1. Jung Shin pushes book and it slides off a horizontal tabletop with a
speed of 1.50m/s. The book strikes the floor in 0.46 s. Ignore air
resistance. Find (a) the height of the tabletop above the floor; (b)
the horizontal distance from the edge of the table to the point
where the book strikes the floor; (c) the horizontal and vertical
components of the book's velocity, and the magnitude of its
velocity, just before the book reaches the floor. avorit
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Answers: 1
Physics, 22.06.2019 09:20
Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers
Answers: 1
Physics, 22.06.2019 18:30
Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.
Answers: 1
Physics, 23.06.2019 03:00
Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)
Answers: 2
1. Jung Shin pushes book and it slides off a horizontal tabletop with a
speed of 1.50m/s. The book...
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