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A hockey puck is sliding along the ice with nearly constant momentum ‹ 4, 0, 4 › kg · m/s when it is suddenly struck by a hockey stick with a force ‹ 0, 0, 1600 › N that lasts for only 3 milliseconds (3×10?3) s. What is the new momentum of the puck?
When point charges q1 = +7.7 µC and q2 = +5.7 µC are brought near each other, Determine the distance between the charges
A double concanve lens has equal radii of curvature 15.1 cm. What is the index of refraction of the lens material
Describe the three main layers of the Sun's interior and what do astronomers mean by a "model of the Sun" - Briefly describe how you would determine the absolute magnitude of a nearby star.
You need to prepare a 0.187mm-diameter tungsten wire with a resistance of 3.43 ohm. How long must the wire be
The ball rebounds straight upward to a height of 0.660 m. illustrate hat are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor.
venturi tube is a device made to measure pressure differences as the fluid (air density = 1.2kg/m^3) flows through a constriction. calculate difference in the level of mercury
A satellite is in a circular orbit about the earth (M = 5.98 x 1024 kg). The period of the satellite is 6.84 x 104 s. What is the speed at which the satellite travels
A uniform disk of mass M = 1.6 kg and radius R = 0.18 m rotates counterclockwise at a constant rate of 36 rev/s about its central axis. Determine the radial acceleration of a point on its rim
A 275 ball is tied to a string. It is pulled to an angle of 4 and released to swing as a pendulum. A student with a stopwatch finds that 17 oscillations take 20.
A bat flies toward a wall at a speed of5.0m/s. As it flies, the bat emits an ultrasonic sound wave with frequency29.5kHz. What frequency does the bat hear in the reflected wave
A 32000-kg railroad freight car collides with a stationary caboose car. What is the mass of the caboose
Charge Q = 17E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge. A) Find the potential difference VB - VA between the two points. B) Which point is at the higher potential? Type either "Po..
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