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In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 2.1 m/s. However, this speed is inadequate to compensate for the kinetic friction between the puck and the ice. As a result, the puck travels only one-half the distance between the players before sliding to a halt. What minimum initial speed should the puck have been given so that it reached the teammate, assuming that the same force of kinetic friction acted on the puck everywhere between the two players?
Monochromatic light is incident on a diffraction grating and the first maximum is observed at an angle 5.2 degrees. At what angle is the 4th maximum seen
An L-R-C series circuit has 97.5%u03A9 , and the amplitude of the voltage across the resistor is 30.0VV . What is the average power delivered by the source
Water is flowing through a circular hole in a large, open tank at a rate of 126 ml / s. The hole is 3.75 meters below the surface of the water in the open tank. The area of the hole is 4 cm2
The molecular mass of helium is 4 g/mol, the Boltzmann's constant is 1.38066×10^?23J/K, the universal gas constant is 8.31451 J/K· mol, What is the average kinetic energy of each helium atom
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 e 10^6 m/s. What is the distance of closest approach? Please show work in the answer because I am attempting to learn this.
Explain in your own words the meaning of acute and chronic exposure, deterministic and stochastic effects from radiation. Give examples
An electric dipole of dipole moment = (5 × 10-10 C.m) is placed in an electric field = (2 × 106 N/C) +(2 × 106 N/C)
A 1500-kg car moving east at 28.00m/s collides with a 1720 kg car moving south at 15 m/s and the two cars stick together.
A +30mc charge is placed on a metallic sphere of 1.0cm radius. The sphere is surrounded by a spherical thick metallic shell, calculate the electric potential of each of the two conductors
A constant force of 23 N pulls on a 12 kg block on a horizontal surface. What is the work done by the constant force
Water is lifted out of a well 22.0m deep by a motor rated at 1.40hp .Assuming efficiency 90% , how many kilograms of water can be lifted in 1 min
After falling from rest from a height of 26 m, a 0.5 kg ball rebounds upward, reaching a height of 16 m. If the contact between ball and ground lasted 1.6 ms, Evaluate average force was exerted on the ball?
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