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Problem: A 45 kg woman stands up on a 60 kg platform of length 5m that sits ona frictionless surface. She walks from a point 1 meter from one end of the platform to a point 1 meter from the other end of the platform. Assume the walking velocity vwalk of the woman is variable!!
Part A - Calculate how far the canoe (platform) slides during the walk.
Rework your solution from the beginning and check each step carefully.
A recording engineer works in a soundproofed room that is 50.0 dB quieter than the outside. what is the intensity outside
Mercury is approximately a sphere of radius 2.43 x 106 m. What is its circumference in kilometers and What is its surface area in square kilometers
a the total amount of charge entering a wire at time t is q 20 c 1-exp-t 2sec where 0lttlt10 is in seconds. graph qt
A small, 100g cart is moving at 1.2 m/s on an air track while it collides with a larger, 1.00kg cart at rest. After the collision, the small cart recoils at .850 m/s. what is the speed of the large cart after the collision.
A car of mass 1800 travelling at 60.7 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and the car's tires. Use = 9.80 throughout the problem.
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.474 m and mass 5.46 kg, and two thin crossed rods of mass 7.80 kg each. You would like to replace the wheels with uniform disks that are 5.25 cm th..
A person finds the front windshield of him car covered with ice at -10.2 °C. Compute how much heat in joules is needed to melt the ice
A new plant oil is discovered that is easy to recover from the plant and it might be a useful fuel. A question is the energy density of the fuel. Calculate the energy-density of this "new fuel"
An 18mm wide diffraction grating has rulings of 390 lines per mm. monochromatic light of 487 nm wavelength is incident generally on the grating. At what angle away from the normal (where the central maximum of the diffraction pattern occurs) is the n..
An appliance mover is pulling a 300 lb stove across the floor by placing it on a piece of carpet and pulling at a 45 degree angle. how much force is necessary to get it moving
A disk with a radius of 1.5 m whose moment of inertia is 34 kg · m2 is caused to rotate by a force of 160 N tangent to the circumference
After you pick up a spare, your bowling ball rolls withoutslipping back toward teh ball rack with a linear speed of v = 3.36m/s. What is the linear speed of the ball
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