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A 28.8 kilogram cart is released down a 108 meter long, frictionless ramp inclined at an angle of 10.5o. Explain the forces acting on the cart, with magnitudes and directions, and find how long it will take the cart to reach the end of the ramp and its speed at that point.
If the cart in the above question is replaced with a 28.8 kilogram box and, if after an initial push, the cart is found to be sliding down the ramp at a constant 1.98 m/s, find the coefficient of friction between the box and the surface of the incline.
In a blade with an airfoil profile the total aerodynamic force acting on the blade when wind speed is 25 ft /sec is 50 lb, find the torque generated in the shaft
A physics professor is pushed up a ramp inclined upward at an angle 34.0 degrees above the horizontal as he sits in his desk chair that slides on frictionless rollers, Use the work-energy theorem to find his speed at the top of the ramp
A positive charge q=3.2 x 10^-19 C moves with a velocity v=(2i + 3j - k)m/s through a region where both a uniform magnetic field and a uniform electric field exist. What angle does the force vector make relative to the positive x axis?
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is2.82cm. What is the power of the implanted lens
q1. an important news announcement is trans- mitted by radio waves to people who are 122 km away sitting next to their
The human eye can detect light intensities as small as about 3 10-23 W/m2. What is the corresponding electric field amplitude
The rotational spectrum of the HCl molecule contains lines with wavelengths of 0.0604, 0.0690 ,0.0804 ,0.0964 , and 0.1204 mm. What is the moment of inertia of the molecule
at the start of a race a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting
You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. what is the maximum magnification you could achieve
A 210-kg crate is being pushed across a horizontal floor by aforce P that makes an angle of 18.6° below the horizontal. The coefficient of kinetic friction is0.209. What should be the magnitude of P, so that the net work done by it and the kinetic..
if the maximum height from which a person can jump without a parachute and still survive is 7.50 meters the maximum
gravity fed intravenous infusions are made possible by hanging a bag of fluid above the patient. if blood pressure is
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