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Two 72.0 kilogram hockey players skating at 5.75 m/s collide and stick together. If the angle between their initial directions was 140 degree, determine what is their speed after the collision?
A block of mass m sliding on a frictionless table isattached to a string that passes through a narrow hole through thecenter of the table. Find the angular momentum of the block
A 50 kg woman stands on the back of a 6 m long, 125 kg raft that is floating at rest in still water with no friction. The raft is 0.50 m from a fixed pier.
Two water waves meet at the same point, one having a displacement above equilibrium of 60 cm, what is the resulting displacement above equilibrium
If a 35.0 N·m torque on a wheel causes angular acceleration 20.0 rad/s2, what is the wheel's rotational inertia
a 1.0-cm-tall object is 60 cm in front of a diverging lens that has a -30 cm focal length. calculate the image position
A sheet of glass is coated with a 500nm thick layer of oil ( n = 1.42). What is the color of the most part of transmitted light
You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. The ray reflects from the mirror and strikes the wall. Find the angle of incidence of the laser ray on the mirror
A heat engine produces 12,000 W of power and operates at an efficiency of 21%. What is the heat input to the engine
A precious stone dealer wishes to obtain the specific heat capacity of a 0.045 kilogram gem stone. Calculate the specific heat capacity of the specimen
A wheel is spinning at 75 rad/s. Over a period of 15 second it is spinner up to353 rad/s. Find how many revolutions it made while spinning up
A29.0 kg wheel, essentially a thin hoopwith radius 1.02 m, is rotating at 280rev/min. It must be brought to a stop in 15.0 s. How much work must be done to stop it
A satellite is in a circular orbit about the earth (M=5.98 x 10^24 kg). The period of the satellite is 1.40 x 10^4 s. What is the speed at which the satellite travels
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