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Physics, 22.06.2019 14:30
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
Answers: 2
Physics, 22.06.2019 19:30
Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)
Answers: 3
Physics, 22.06.2019 22:00
On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m
Answers: 1
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Physics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10
Mathematics, 16.12.2020 21:10