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A race car starts from rest and drives as fast as possible over the"L" shaped course on the board. X=120m, R=35m. the car canaccelerate at a 9.0 m/s^2 under any condition (speeding up, slowingdown or turning). how long will it take to run the course? (the carneed not be at rest at the finish line)
A 260 wooden raft floats on a lake. When an 80 man stands on the raft, it sinks 5.0 deeper into the water. When he steps off, the raft vibrates for a while. What is the frequency of vibration.
Consider diving 30.0m below the surface of the ocean (density 1.03 grams/cc). what is the gauge pressure at that depth
A window in a house is rectangular, with height 40 cm and width 30 cm. The pressure inside the house is normal atmospheric pressure, What is the force on the window
An electron is accelerated to a speed where its total energy is 169 times larger than its rest energy. What is the speed of the electron in terms of the speed of light
A gymnast on a high bar swings through three revolutions in a time of 2.90 s. The magnitude of the average angular velocity of the gymnast, in rad/s, is
Find the speed an alpha particle requires to come within 2.6 ? 10-14 m of a uranium nucleus
When a potential di?erence of 150V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 30.0nC/cm2, What is the spacing between the plates
A block hangs from the ceiling by a massless rope. A second block is attached to the first block and hangs below it on another piece of massless rope. Calculate the mass of the top block
Two boats start together and race across a 72 km wide lake and back. Boat A goes acrossat 72 km/h and returnsat 72 km/h. Boat B goesacross at 36 km/h, and itscrew, realizing how far behind it is getting, returnsat 108 km/h.
An electron starts from rest 32.5 cm from a fixed point charge with Q=-0.125 µC. How fast will the electron be moving when it is very far away
A solid sphere is released from height h from the top of an incline making an angle ? with the horizontal. Calculate the speed of the sphere when it reaches the bottom of the incline in the case that it rolls without slipping
A horizontal spring-mass system has low friction, spring stiffness 205 N/m, and mass 0.6 kg. What is the maximum speed during the motion
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