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A ballot box with mass m = 6.0 kilogram slides with speed v= 4.0 m/s across a frictionless floor in the positive direction of the x axis. The box explodes into two pieces. One piece, with mass m1 = 2.0 kilogram, moves in the positive direction of the x axis v1= 8.0 m/s. Find the velocity of the second piece, with mass m2?
bowler uses a 5-kg bowling ball. What is the weight of the bowling ball, What is the momentum of the ball
A magnetic field is oriented at an angle of 43 to the normal of a rectangular area 6.2 by 5.9. what is the strength of the magnetic field
Two parallel plates having charges of equal magnitude but oppositesign are separated by 12cm. Each plate has a charge density of 36nC/m2. A proton is released from rest at the positive plate. The potential difference across the plates
A bat flies toward a wall at a speed of5.0m/s. As it flies, the bat emits an ultrasonic sound wave with frequency29.5kHz. What frequency does the bat hear in the reflected wave
When red light in a vacuum is incident at the Brewster angle on a certain type of glass, the angle of refraction is 29.2°. What is the Brewster angle
Wire is often delivered wrapped on a large cylindrical spool. Suppose such a spool is supported by resting on a horizontal metal rod that is pushed through a hole that runs through the center of the spool. A worker is pulling some wire off the spo..
A Carnot engine uses reservoirs at temperatures of 27.0°C and 327°C. In one cycle, it uses 600 J of heat from the high temperature reservoir
A company uses a process cost accounting system and the weighted average method for inventory costs. Calculate the equivalent units of production for direct labour for the year.
You stick two blocks together with Velcro. The manufacturer rated the Velcro as needing a force of 50N to separate the side you are using when applied to solid surfaces. Find the maximum possible amplitude of oscillation at which the blocks will ho..
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, thus that an emf of 0.57 V and a current of 5.7 A are induced in the coil.
7.80-g bullet moving at 490 m/s penetrates a tree trunk to a depth of 6.3 cm. Use work and energy considerations to find the average frictional force that stops the bullet
Joyce and Efua are skating. Joyce pushes Efua, whose mass is 40.0 kilogram, with a force of 5.0 Newton. Determine what is Efua resulting acceleration
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