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A projectile of mass m is launched from the ground at time t = 0, with speed v0, at angle 0 above the horizontal. Aerodynamic drag is negligible. Write the (Newtonian) kinetic, potential, and total energies of the projectile as explicit functions of time. Take the zero of potential energy to be at ground level. Simplify your results as much as possible.
The earth spins on its axis once a day and orbits the sun once ayear (365.24 days). Determine its angular velocity as it revolves around the sun
a roller coaster moves 85m horizontallythen travels 45m at an angle of 30.0 degrees above the horizontal. what is its
A wrecking ball swings at the end of a 13.9 meter cable on a vertical circular arc. Determine what speed vf does the ball have
A man drags a table 4.30 m across the floor, exerting a constant force of 46.0 N, directed 29.0° above the horizontal. Find the work done by the applied force
The gravitational force between two electrons 1.00 m apart is5.42x10-71 N. Find the mass of an electron
A 94.0 cm pendulum is released from a small angle. After 113 oscillations the amplitude is one half of its original value. The damping is proportional to the speed of the pendulum bob. Find the value of the damping coefficient, ?, (in Hz).
The Physics of Radiology shows the MTF of a screen film for mammography and the MTF of a high-speed screen-film (curves C and D, panel b). Give two physical reasons why the mammography screen-film has a higher geometric resolution.
A house is 53.0 ft long and 48 ft wide, and has 8.0-ft-high ceilings. What is the volume of the interior of the house in cubic meters and cubic centimeter.
A heat engine has an efficiency of 25%, and its heat input is 600 J per cycle from the high-temperature reservoir
A 0.400-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 23.0 N/m. How far does the putty-block system compress the spring
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is usedin medical laboratories, for instance, to cause the more dense redblood cells to settle through the less dense bloo..
In the process of changing a flat tire, a motorist uses a hydraulicjack. She begins by applying a force of 45 N to the input piston,which has a radius r1. obtain the force that the output plunger applies to the car
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