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A 30 kilogram block rests on a rough horizontal surface with μk = 0.20. It is connected by a mass less cord to a 10 kilogram block which is hanging freely from the edge of the table. The 30 kilogram block moves 5 meter after the system are released.
Evaluate what is the friction force?
Evaluate how much work is done on the surface by the 30 kg block?
Evaluate what the change in potential energy of the 10 kg block? Evaluate the speed of the system after it moves 5 m? Use energy methods only.
Find the ranges of this light's frequency. min? max? in Hz, Find the ranges of this light's wave number. min? max? in rad/m
Write a nuclear reaction for the neutron-induced fission of U-235 to produce Te-137 and Zr-87 How many neutrons are produced in the reaction
A 205 kg log is pulled up a ramp by means of a rope that isparallel to the surface of the ramp. The ramp is inclined at 30degrees with respect to the horizontal. The coefficient of kineticfriction between the log and the ramp is 0.900, and the log..
Long Straight Wire A long straight wire has fixed negative charge with a linear charge density of -3.1 nC/m. The wire is to be enclosed by a thin,nonconducting cylinder of outside radius 1.6 cm, coaxial with the wire.
A uniform metal rod, with a mass of 3 {rm kg} and a length of 1.2 {rm m}, is attached to a wall by the hinge at its base. A horizontal wire bolted to the wall 0.51 m above the base of the rod holds the rod at an angle of 25{rm ^circ} above the hor..
a freezer compartment consists of a cubical cavity that is 2 m on a side. assume the bottom to be perfectly insulated.
a 2.67-f and a 4.20-f capacitor are connected in series across a 25.0-v battery. a 8.24-f capacitor is then connected
The drawing shows a snapshot of a transverse wave moving to the left on a string. In what direction is point B moving
A 103 kg fullback runs at the line of scrimmage. A constant force of 3399 N must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.27 s. How fast was he running initially
a square plate of edge length 12.0 cm and negligible thickness has a total charge of 5.80 x 10-6 c. estimate the
A positively charged particle of mass 6.00 10-8 kg is traveling due east with a speed of 80 m/s and enters a 0.42 T uniform magnetic field. What is the magnitude of the charge of the particle
A toy car with a mass of 120 g moves to the right with a speed of 0.62 m/s. A small child drops a 21.0-g piece of clay onto the car, What is the change in speed of the car
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