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Your favorite physics book (total mass 2.4kg) is pushed across the floor at a constant speed by a force of F = 26N at an angle (theta)= - 42 degrees (aiming downward 42 degrees below the horizontal). Determine the coefficient of kinetic friction ? k between the box and the floor. Make a free-body diagram
The volume expansion coefficient for kerosene is 900 x 10^-6 / k. If the kerosene was held inside a long thin metallic cylindrical tube, then what would be its linear expansion coefficient
A blue car with mass mc = 480.0 kg is moving east with a speed of vc = 23.0 m/s, obtain the magnitude of the initial momentum of the car
What is the acceleration of a car that moves at a steady velocity of 100 km/h for 100 second? Explain your answer and state why this question is an exercise in careful reading as well as in physics.
It walks 2.1 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find out how far the dog is then from the shore.
You have a ballistic pendulum. At the end of the event, the angle of the pendulum is ? with the length of the pendulum being L. Find the muzzle velocity of the projectile
A block with a mass of 10.0 g and a charge of +1.11 x 10-5 C is placed in an electric field with x component Ex = 2.51 x 103 N/C, y component Ey = -528 N/C, find the magnitude of the electrostatic force on the block
A playground merry-go-round has a radius of 4.20m and a moment of inertia of 255kg m2 and turns with negligible friction about a vertical axle through its center. What is the average power supplied by the child
A cart of mass m1=0.5 kg moves with a velocity of 0.9 m/s to the right on a frictionless track. What is the velocity of each cart after the collision
Derive the electric potential V for a single current electrode placed at the surface of an isotropic medium. The current injects current I into the medium that has resistivity r. Assume that the air is non-conductive.
A rope hangs from a cylinder over which it is wound, of radius 0.20 m and mass 40.0 kg, What torque does the hanging mass exert on the cylinder
In a carnival they often have a large r = 16 m, cylinder which people stand against the outer wall while it rotates with some velocity, What is the minimum velocity of the cylinder to make someone "stick" to the wall in m/s
A solid, uniform sphere of mass 2.0 kg and radius 1.7 m rolls without slipping down an inclined plane of height 6.7 m. What is the angular velocity of the sphere
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