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A 0.20 kilogram hockey puck is sliding on a frictionless ice surface with a velocity of 14 m/s toward the east just before making contact with a hockey stick. Take east to be the +x direction. Determine what change in momentum, including sign, does the puck undergo while in contact with the stick if just afterward the velocity of the puck is
(a) 22 m/s toward the east,
(b) 5.6 m/s toward the east, and
(c) 12 m/s toward the west?
A 3.0-kg block is pulled along a FRICTIONLESS surface with a force of 42N. Attached to that block with a light string is another 3.0-kg block. what is the tension in the string
Two charged particles, q1 = ?2.50×10?3 C and q2 = +3.850e-3 C, are separated by a distance of 5.00 cm. What is the electric potential energy of this configuration
Suppose that 36 g ofHg(mercury) at -39°C are dropped into a big bowlthat contains a mixture of water and ice in thermal equilibrium. How much additional ice will be formed
given that the speed of sound in the air is 343 ms and that human ears are typically 20 cm apart what is the maximum
The rectangular loop in the drawing consists of 75 turns andcarries a current of I = 4.1 A. A 1.6-T magnetic field isdirected along the +y axis. The loop is free to rotateabout the z axis. Determine the magnitude of the nettorque exerted on the loop.
a 60 g piece of ice at an initial temperature that is unknown is placed into a glass of 250 g of water sitting at room
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. determine the magnitude of the average angular acceleration of the wheel
Two astronauts, each having a mass of 88.0 kg, are connected by a 10.0 m rope of negligible mass. What is the new rotational energy of the system
question 1 what is the power rating of an appliance that uses 8 amps of current when plugged into a 120 volt
An object is launched upward with initial velocity 10.0m/s. What maximum height can it reach
A 1024x1024 pixel detector array with 20 mu m pixels is placed in the focal plane of a 4 m diameter telescope with a system focal ratio of 116. What is the angular scale (in arcsec per pixel) and the field of view for this detector?
One design challenge for a capacitor-powered electric car is that the voltage would change with time as the capacitors discharge. what fraction of energy would still be left
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