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Suppose you moved a box across a rough horizontal surface with a 50 N force over a displacement of 10 m. If the frictional force at the interface was 10 N, how much work was done to the box?
You took a job as a space station scientist. On a spacewalk you get separated from the station. At what speed will you move back toward the station
two capacitors one 12.0 microf and the other of unknown capacitance are connected in parallel across a battery of emf
Needing help, secretary of the United States Department of Agriculture asked your teacher, "If a chicken and a half can lay an egg and a half in a day and a half, how many days will it takes three chickens to lay twenty eggs".
Two cars with different masses are taking a left turn in a flat road. Which of those cars will experience a bigger (a) centripetal force? (b) centripetal acceleration?
The coefficient of kinetic friction between a refrigerator (mass 125 kg) and the floor is 0.18, What is the minimum force required to keep it moving with a constant velocity
an electron initially traveling at a speed of 105 ms enters a region where there is a uniform magnetic field of 2 t
An electron is moving at a speed of 1.0 x10^4 m/s in a circular path of radius of 2.1cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electron's path. The solenoid has 25 turns per centimeter.
One object is at rest, and another is moving. The two collide in a one-dimensional, completely inelastic collision. Determine the final speed of the two-object system
A major league pitchers can throw a ball in excess of 39.5 m/s. find how much will it drop by the time it reaches a catcher who is 17.0 meter away from the point of release
A certain type of elementary particle travels at a speed of 2.75×108m/s. What is the particles lifetime at rest in seconds
A 0.362 kg bead slides on a curved wire, starting from rest at point A, find the speed of the bead at C
A projectile is fired horizontally along the earth's surface. Show that to a first approximation the angular deviation from the direction of fire resulting form the Coriolis force varies linearly with time at a rate cosωθ, where ω is the angular f..
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