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A boy of mass 50.5 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard.
A car moving at 20.0 m/s decelerates at 7.00 m/s2. How far will it travel before stopping
The eyepiece of a microscope has a focal length of 1.25 cm and the objective lens focal length is 1.26 cm. If the tube length is 17.0 cm, what is the angular magnification of the microscope
A 2.00-kg mass object traveling east at 20.0 m/s collides with a 3.00-kg mass object traveling west at 10.0 m/s. After the collision, the 2.00-kg mass has a velocity 5.00 m/s to the west. how much kinetic energy was lost during the collision ?
At what depth under water does the pressure increase by 100,000 Pa? The Earth rotates with a period of one day. What is its rotational speed in revolutions per minute? The Earth rotates with a period of one day. What is its rotational speed in revolu..
A cord is used to vertically lower an initially stationary block of mass M at a constant downward acceleration of g/4. determine the work done by the cord's force on the block
Three moles of nitrogen gas, N2, at 27.0°C are contained in a 25.8 L cylinder. Find the pressure the gas exertson the cylinder walls
A woman lies on a weightless board across two scales. Her feet are directly over the right scale. How far above her feet is her center of mass
the drive train of a bicycle that has wheels 67.3 cm in diameter and pedal cranks 17.5 cm long. Calculate the speed of the bicycle relative to the road
A body of mass 12kg is moving with a velocity of 1m/s.Calculate the force required to stop it in 10s. how far will it travel before coming to rest
Objects with masses of 295 kg and a 595 kg are separated by 0.300 m. Find the net gravitational force exerted by these objects
A disoriented physics professor drives a distance 3.25 km North, then a distance 2.60 km West, and then a distance 1.70 km South, Find the magnitude of the resultant displacement
What is the average energy of the system after many measurements
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