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A 170 ball is dropped from a height of 1.8 , bounces on a hard floor, and rebounds to a height of 1.0 . The figure(Figure 1) shows the impulse received from the floor. What maximum force does the floor exert on the ball? (the diagram shows the impulse spanning for 5 ms)
A circular coil consists of 60 turns of wire wound around the rim of a plywood disk of radius .15 m. what is the magetic field produced at the center of this disk
Ball A has a mass of 0.90 kg and moves with an initial speed of 10.60 m/s. It collides with stationary balls B and C, whose centers are on a line vertical to the initial velocity of ball A and that are initially in contact with one-another.
Twenty particles, each of mass m0 and confined to a volume V, have various speeds: two have speed v, FIND the pressure they exert on the walls of the vessel
A solenoid that is 75 cm long produces a magnetic field of 1.4 T within its core when it carries a current of 7.6 A. How many turns of wire are contained in this solenoid
A man traveling on a bicycle at 10 m/s along a straight road that runs parallel to some railroad tracks. What frequency is heard by a stationary observer located between the train and the bicycle
A moving particle encounters an external electric field that decreases its kinetic energy from 9910 eV to 6840 eV as the particle moves from position A to position B.
The current in a coil changes from 3.10 A to 1.90 A in the same direction in 0.530 s. what is the inductance of the coil
Heat Q flows spontaneously from a reservoir at 445 K into a reservoir at 265 K. Because of the spontaneous flow, 2620 J of energy is rendered unavailable for work when a Carnot engine operates between the reservoir at 265 K and a reservoir at 248 K. ..
Two stationary point charges of 5.00 nano coulombsand 2.00 nano coulombs are separated by a distance of 60.0 cm. What is the electric potential energy of the electron
A garden hose of inner radius 1.1 cm carries water at 1.8 m/s. The nozzle at the end has radius 0.25 cm. How fast does the water move through the nozzle
003 10.0 points A wire is made of a material with a resistivity of 1.72779 × 10^ ?8 ? · m. estimate the resistance of the wire?
A 40-N crate rests on a rough horizontal floor. A 12- N horizontal force is then applied to it. find the magnitude of the frictional force on the crate
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