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A 15 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. If the coefficient of kinetic friction between the block and the surface is 0.25, and the impact drives the block a distance of 9.5 m before it comes to rest, what was the muzzle speed of the bullet?
What happens when a proton moves parallel to a magnetic field and when a proton moves perpendicular to a magnetic field
An object has a kinetic energy of 313 J and the momentum of magnitude 24.1 kg·m/s. Find out the speed and the mass of the object.
A 75 kg solid sphere with a 19 cm radius is suspended by a vertical wire attached to the ceiling of a room. A torque of 0.35 N m is required to twist the sphere through an angle of 0.75 rad. What is the period of oscillation when the sphere is releas..
An air bubble ascends from the bottom of a lake 15 m deep. The temperature at the bottom of the lake is 4oC, what would be the volume of the bubble at the top of the lake?
To treat a burn on your hand, you decide to place an ice cube on the burned skin. How much heat is absorbed by the ice cube and resulting water
One particle has a mass of 4.00 10-3 kg and a charge of +7 µC. A second particle has a mass of 5.00 10-3 kg and the same charge. Find the initial separation between the particles
An electron moving parallel to the x axis has an initial speed of 3.70*10^6m/s at the origin. Its speed is reduced to 1.40*10^5m/s at the point x=2cm. Which point has higher potential energy
A metal bar is in the xy-plane with one end of the bar at the origin. What are the magnitude of the torque with respect to the origin produced by F
Consider an RC circuit with E = 12.0, R= 195 ohms, and C = 55.8 micro farrads. Find the initial current in the circuit
How many vectors may be added by the polygon method? Are other methods of vector addition limited to the number of vectors that can be added
A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 1.25 s. find the change in the period of the heated pendulum
A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18.0 cm. (a) Another car is behind your car, 9.00 m from the mirror, and this car is viewed in the mirror by your passenger
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