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Two hockey pucks of equal mass approach each otherhead-onwith equal speeds of 8.7 m/s. They collide and one puck leaves the collision with a speed of 6.2 m/s. What is the speed of the other puck after the collision?
A hydraulic cylinder with a radius of 0.0281 m has a piston on the left end and a safety valve at the right end. The safety valve is a circular opening with a radius of 0.00650m, sealed with a disk. The disk is held in place by a spring (spring co..
By adding this radioactive tag to the pharmaceutical, researchers can pinpoint all parts of the body and the concentration that accumulates in non-target areas. How many 99Tc nuclei are required to give an activity of 1.6 A??1Ci?
A solid uniform marble and a block of ice, each with the same mass, start from rest at the same height, Which object is moving faster at the bottom, the ice or the marble
Two conductors having net charges of +12.0 µC and -12.0 µC have a potential difference of 12.0 V between them. Determine the capacitance of the system
Two resistors are connected in parallel across an ideal 12.0 V battery. Resistor A has a value of 24 and resistor B carries a current of 0.2559 A. What is the total power dissipated in the circuit?
sound produced at a point is heard by a person after 5 second while the same sound is heard by another person after 6
A person is riding a bicycle, and its wheels have an angular velocity of 16.1 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 18.4 revolutions.
It takes 20 turns to drive a screw completely into a block of wood. Because the friction force among the wood and the screw is proportional to the contact area among the wood and screw, the torque required for turning the screw increases linearly by ..
a car driving along a highway at a speed of 22.9 ms strays onto the shoulder. evenly spaced parallel grooves called
A certain automobile engine is performing work at the rate of29400 W (39 hp) by an efficiency of 22%. At what rate is heat being expelled by the engine?
A steel ball of mass 0.400 kg is fastened to a cord that is 80.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. At the bottom of its path, the ball strikes a 3.00 kg steel block initially at rest on a fric..
he wavelength of an electromagnetic wave inside water (nwater = 1.33) is ? = 660 nm. find the wavelength of the same electromagnetic wave
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