Aman plans to use a 2 metre crowbar to lift a rock by putting a pivot 0,8 m from
the rock. on...
Physics, 21.08.2019 09:00 summerdooleyu
Aman plans to use a 2 metre crowbar to lift a rock by putting a pivot 0,8 m from
the rock. one end of the crowbar will be under the rock and he will push down
on the other end with a force of 400 n. the mass of the rock is 50 kg.
1.will the man be able to move the rock? show how you worked out your
answer.
2.the man’s daughter says that she can move the rock although her force
on the other end is only 200 n. explain how this is possible
Answers: 2
Physics, 22.06.2019 09:00
Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than
Answers: 3
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
Physics, 22.06.2019 14:40
An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.
Answers: 1
History, 08.11.2019 04:31
Mathematics, 08.11.2019 04:31
Geography, 08.11.2019 04:31
Mathematics, 08.11.2019 04:31
Social Studies, 08.11.2019 04:31
Mathematics, 08.11.2019 04:31
Mathematics, 08.11.2019 04:31
Physics, 08.11.2019 04:31
History, 08.11.2019 04:31
History, 08.11.2019 04:31
Mathematics, 08.11.2019 04:31
History, 08.11.2019 04:31
Computers and Technology, 08.11.2019 04:31