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A pitcher throws a 0.157 kilogram baseball, and it approaches the bat at a speed of 48.9 m/s. The bat does 79.1 Joule of work on the ball in hitting it. Neglecting air resistance, find the speed of the ball after the ball leaves the bat and is 24.7 meter above the point of impact.
A cloud mass moving across the ocean at an altitude of 2000 m encounters a coastal mountain range. As it rises to a height of 3500 m to pass over the mountains, it undergoes an adiabatic expansion.
An AC generator has 100 rectangular loops on its armature. Each loop is 11 cm long and 6 cm wide. The armature rotates at 1400 rpm about an axis parallel to the long side. If the loop rotates in a uniform magnetic field of 0.7 T, which is perpendicul..
A spaceship approaching Earth at 0.70 c fires a particle beam toward Earth, with speed 0.76 c relative to the ship
An accurate clock is kept in a laboratory located on the equator of the Earth, calculate the difference that accumulates between the laboratory clock and each of the two flying clocks upon one trip around the Earth
a truck covers 40.0 m in 9.20 s while smoothly slowing down to a final velocity of 2.60 ms.a find the trucks original
paid $20 an hour. working for 7 days straight , 14 hours every day 7am to 9pm. How much are you going to be paid
A block of mass 20m can move without friction on a horizontal table. find the magnitude of the acceleration of the descending block
A 0.17kg ball is thrown vertically upwards with a velocity of 34m/s at the edge of a 22m cliff. Neglect air resistance. calculate The height to whcih the ball rises above the cliff
One can not align the apparatus to eliminate entirely the effects of the Earth's magnetic field. calculate the component of the earth magnetic field perpendicular to the entering electron beam
A rotating wheel requires 5 second to complete 50 revolutions. Its angular speed at the end of the 5 second interval is 75 rad/s. Obtain what is the constant acceleration of the wheel
A container holds 0.05 m^3 of ethanol at a temperature of 15 degrees celcius. The temperature is then raised to 75 degrees celcius. By how much did the volume change
A diffraction grating produces a first-order maximum at an angle of 25.0 degree. What is the angle of the second-order maximum
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