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An aluminum baseball bat has a length of 0.619 m at a temperature of 16.7°C. When the temperature of the bat is raised, the bat lengthens by 0.000137 m. Determine the final temperature of the bat.
A light spring of constant k = 155 N/m rests vertically on the bottom of a large beaker of water, What is the elongation, DeltaL, of the spring
a projectile is fired with an initial velocity of 88ms at an angel of 42 degrees above horizontal. at the projectiles
Two cars of 2000 %u2013kg each collide head-on while traveling at 75.0 miles per hour. What is the temperature increase of the cars
The spheres are brought into contact and then separated to a distance of 2.40 cm. Determine the magnitude of the force that each sphere now experiences, and state whether the force is attractive or repulsive.
Determine the magnitude and direction of impulse delivered to the ball by the floor.
With what speed must a ball be thrown vertically from ground level to rise to a maximum height of 35 m
A 1.50 kg object is held 1.20m above a relaxed massless, vertical spring with a force constant of 320 N/m. The object is dropped onto the spring.
A child is twirling a 0.0215-kg ball on a string in a horizontal circle whose radius is 0.143 m. The ball travels once around the circle in 0.586 s. Determine the centripetal force acting on the ball
What is the radiation pressure (force/area) of a laser pointer on a heavy, highly absorbing surface? Assume that the laser has an output power of 1mW, a wavelength of 600nm, and a beam radi- us of 1mm. To do this problem, first compute the number ..
The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it is 0.0045 (C°)-1. find the percentage increase in the resistance in a tungsten wire
in a 10ft^2 room wiyh no window and no doors . The air in the room is 79% N(sub2) and 21% O(sub2). What is the weight of the air
Two particles moving under the influence of their mutual gravitational force describe circular orbits about one another with a period T. If they are suddenly stopped in their orbits and allowed to gravitate towards each other, show that they would..
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