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A uniform drawbridge must be held at a 35.0?angle above the horizontal to allow ships to pass underneath. The drawbridge weighs 4.05×104N , is 13.5m long, and pivots about a hinge at its lower end. A cable is connected 3.25m from the hinge, as measured along the bridge, and pulls horizontally on the bridge to hold it in place.
If the cable suddenly breaks, what is the initial angular acceleration of the bridge? (in rad/s^2)
At this point she is disappointed at having seen no dolphins and heads straight for Treasure Island. Illustrate what is the total distance Moe travels from the harbor to the island? Express your answer to 2 significant figures.
A swimming pool has dimensions 28m 11m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water.
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field, mfind the strength of the field
A particle's trajectory is described by x=(12t3?2t2)m and y =(12t2?2t)m, What is the particle's direction of motion, measured as an angle from the x-axis, at t=5.0s
While rearranging a dorm room, a student does 292J of work in moving a desk 3.90m. What was the magnitude of applied horizontal force.
define what is the unknown capacitance. what focal length eyepiece should she use.
A bead with a mass of 0.083 g and a charge of 15 nC is free to slide on a vertical rod. At the base of the rod is a fixed 10nC charge. In stability, at what height above the fixed charge does the bead rest.
A compound microscope has an objective lens of focal length 10.50 with an eyepiece of focal length 14.80, and it produces its final image at infinity. The object to be viewed is placed 2.00 beyond the focal point of objective lens.
High-voltage power lines are a familiar sight throughout the country, What is the resistance of 15 kilometers of this wire
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, How fast are the waves traveling
An electromagnetic wave with frequency 56.0 Hz travels in an insulating magnetic material that has dielectric constant 3.72, What is the amplitude of the magnetic field?
Two positive point charges, each 17?C , lie along the x-axis at x = -0.12m and x = +0.12m . Find the electric field at the point (0, 0.21m)
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