Estimate the kinetic energy acquired by a nail
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 14 g nail when it is struck by a 550 g hammer moving with an initial speed of 5.1 m/s.
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Find the final mass of nitrogen in the tank and the final temperature of the nitrogen assuming constant specific heats at room temperature for nitrogen.
Two nanowires are separated by 1.2 nm as measured by STM. Inside the wires the potential energy is zero, but between the wires the potential energy is greater than the electron's energy by only 1.4 eV. Estimate the probability that the electron pa
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A ball is tossed from an upper-story window of a building. How long does it take the ball to reach a point 10.0 m below the level of launching?
A plane has an airspeed of 142 m/s. A 16.0 m/s wind is blowing southward at the same time as the plane is flying. If the velocity of the plane relative to Earth is due east, what is the magnitude of that velocity?
If a 114 A · h battery can deliver a steady current of 4.5 A until it is completely depleted, what is the total time the battery can deliver current without being recharged?
The spring-loaded launcher makes an angles of 45 degree with the lower edge of the inclined plane.The goal is to get the ball in a small hole at the opposite corner of the inclined plane. With what initial velocity should you launch the ball to ac
A block of mass 2kg and another 6kg are connected by massless string over a pulley in a shape of a disk with radius 0.38m and a mass of 4kg. I addition, the blocks are allowed to move on a fixed block wedge of angle 46 degress. The coefficient of
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