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A certain van is capable of accelerating at a rate of 10.60m/s2. Find how long does it take for this car to go from a speed of 55 mi/hr to a speed of 60 mi/hr?
An alpha particle and beta^ {-} particle, each with kinetic energy 35 {rm keV}, are sent through a 1.10 {rm T} magnetic field. The particles move perpendicular to the field. Find the curvature radius for alpha particle's trajectory. Hint: The kine..
A horizontal force of 50 N pushes a box that weighs 75 N across the floor at a constant speed. What is the power generated by the applied force if it takes 30 seconds to push the box 12 meters
A 1.80-kg monkey wrench is pivoted 0.250 m from its center of mass and allowed to swing as a physical pendulum. What is the moment of inertia of the wrench about an axis through the pivot.
A 46.7 g ball of copper has a net charge of 1.5 µC. What fraction of the copper's electrons have been removed
A meter stick, sitting on a frictionless table top, is struck by a wad of clay with a force, F = 4.0 N at an angle. The meter stick will rotate in the plane of the table. Conclude the magnitude of the torque about the axis of rotation located at t..
The system shown below has frictionless pulleys and the string have negligible mass. what is the speed of the objects when they are at the same height
On planet X, the alien residents use a temperature scale in which they define 0 degrees X to be the melting point of nitrogen and 100 degrees X to be the boiling point of nitrogen.
A 1200 kg car pulls a 480 kg trailer. The car exerts a horizontal force of 3540 N against the ground in order to accelerate. What force does the car exert on the trailer
The source of a sound wave has a power of 8.34μW. If it is a point source, (a) what is the intensity and (b) the sound level at 2.29 m. distance?
Two loudspeakers in a plane, 5 m apart, are playing the same frequency. If you stand 12 m in front of the plane of the speakers, What is the frequency of the sound
A particle undergoes three successive displacements in a plane, as follows: 3.50 m southwest, 4.50 m east, and 6.00 m in a direction 60.0° north of east. How do you find the components of the first displacement
A parabolic reflector brings 10% of 10^4 square meters of sunlight to bear on a 2 meter deep swimming pool that holds 100 metric tons of water for one hour daily. Assuming the pool's temp starts at 30 degrees C, how hot is it in one hour?
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