Physics, 07.11.2019 06:31 brittanyjacob8
You and your friends are doing physics experiments on a frozen pond that serves as a frictionless horizontal surface. sam, with a mass of 80.0 kg, is given a push and slides eastward. abigail, with a mass of 50.0 kg, is sent sliding northward. they collide and, after the collision, sam is moving at 6.00 m/s in a direction 37.0° north of east, while abigail is moving at 9.00 m/s in a direction 23.0° south of east. find the speeds of sam and abigail just before the collision.
Answers: 3
Physics, 21.06.2019 22:10
Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley
Answers: 3
Physics, 22.06.2019 07:20
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
Physics, 22.06.2019 07:30
Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life
Answers: 3
Physics, 22.06.2019 12:20
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
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