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A constant net force of 75 Newton acts on an object initially at a rest as it moves through a parallel distance of 0.60 meter. Obtain the final kinetic energy of the object? If the object has a mass of 0.20 kilogram, determine what is the final speed?
A nuclear power plant has an actual efficiency of 33%. If of energy are released from fission, how much electric power does the power plant produce?
You are lowering two boxes, one on top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp. find the magnitude of the friction force on the upper box
In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth. How much work did Arfeuille do on the object
A typical ten-pound car wheel has a moment of inertia of about. calculate the rotational kinetic energy K of the rotating wheel
A body is placed on a plane that is incline at an angle of 35degrees to the horizontal, Determine the component of mg parallel to the surface
A flight attendant pulls her 61N flight bag a distance of 279m along a level airport floor at a constant velocity. The force she exerts is 41N at the angle of 50° above the horizontal.
A solid block is suspended from a spring scale. If the reading on the scale when the block is completely immersed in water is 34.0 N, what are the block's volume and density
A horizontal plank of mass m and length L is pivoted at one end. The plank's other end is supported by a spring of force constant k. Find the angular frequency (omega) of simple harmonic motion
After thermal equilibrium has been reached, the system has a change in temperature measured as 0.020 oC. explain the entering speed of the bullet.
ships a and b leave port together. for the next two hours ship a travels at 15.0 mph in a direction 35.0 west of north
The K-shell ionization energy of iron is 8500 eV, What is the wavelength of Kalpha X-rays emmited by iron
a rifle with a mass of 2.5 kg fires a bullet with a mass of 0.0045kg. the bullet moves with a muzzle velocity of 350m/s after the rifle is fired
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