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Two 72.0 kilogram hockey players skating at 5.45 m/s collide and stick together. If the angle between their initial directions was 115o, find what is their speed after the collision?
Two concrete spans of a 190 m long bridge are placed end to end so that no room is allowed for expansion. what is the height y to which the spans rise when they buckle
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes in 69.0 degrees, Find the angle the resultant force makes with the rope of dog A
A small piece of dust of mass m = 1.6 g travels horizontally through an electric air cleaner in which the electric field is 511 N/C. What is the charge on the dust particle
An engine absorbs 1695 Joule from a hot reservoir and expels 1201 Joule to a cold reservoir in each cycle. Evaluate the output power of the engine if each cycle lasts for 0.301 sec
A typical laboratory centrifuge rotates at 4500 rpm. For comparison, find what is the magnitude of the acceleration a test tube would experience if dropped from a height of 0.8 meter and stopped in a 1.0 ms long encounter with a hard floor
A suitcase full of platinum sits at the bottom of a lake. A recovery diver finds that as he lifts the suitcase to the ground, Evaluate the volume of the large suitcase
Light of wavelength 550nm in a vacuum is found to travel at 1.96*10^8m/s in a certain liquid. Determine the index of refraction of the liquid
The capacitance in a series RCL circuit is C1 =2.62 µF, and the correspondingresonant frequency is f01 = 6.71 kHz. The generator frequency is 5.34 kHz. What is the value of the capacitanceC2 that should be added to the circuit so that the circuit wil..
A jeweler working with a heated 47 g gold ring should lower the ring's temperature to make it safe to handle. If the ring is initially at 99 degrees Celcius, what mass of water at 25 degrees Celcuis is needed to lower the ring's temperature to 38 ..
two equally charged particles are held 3.2 x 103 m apart and then released from rest. the initial acceleration of the
A wheel rotates with a constant angular acceleration of 4.35 rad/s2. Suppose that the initial angular speed of the wheel is 2.99 rad/s. Elucidate through what angle does the wheel rotate after 2.88 s?
Matthew pulls his little sister Sarah in a sled on an icy surface (no friction) with a force of 60 N at an angle of 600 upward from the horizontal. Find acceleration of the sled
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