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A uniform drawbridge must be held at a 37 deg. angle above the horizontal to allow ships to pass underneath. The drawbridge weighs 45,000 Newton and is 14.0 meter long. A cable is connected 3.5 meter from the hinge where the bridge pivots (measured along the bridge) and pulls horizontally on the bridge to hold it in place.
a.) Compute the tension in the cable?
b.) Find the direction and magnitude of the force the hinge exerts on the bridge.
You win a lottery prize consisting of all the gold you can put into a backpack with dimensions 68 cm x 29 cm x 15 cm
The former move along the surface of the earth much like the ripples in the surface of a pond, while the other type propagate through the whole earth forming a hemisphere around the point of origin of the quark assuming that it occurred close to t..
Three moles of an ideal monatomic gas are at a temperature of 377 K. compute the final temperature of the gas?
A spinning object has a moment of inertia of 1.6 kg*m2. It is rotating at a rate of 1rad/s. If the moment of inertia increases to 3 kg*m2, what is the new rotational velocity
A small vertical mirror hangs on the wall, 1.20 m above the floor. What was the change in the Sun's angle of elevation between your two observations
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth .45E-4 T at a distance of 27 cm
How many kilograms of water at 100 degrees Celsius can be converted to steam by the addition of 1.13X10^7 joules of thermal energy.
a 120-v motor has mechanical power output of 2.50 hp. it is 90 efficient in converting power that it takes in by
Find the action variable for a ball with speed v bouncing between two elastic walls a distance d apart. Find the angle variable
A photoelectric experiment using a cesium metal surface produces stopping potentials of 0.95V and 0.38V using light with wavelengths of 435.8nm and 546.1nm, respectively. find the threshold frequency
A person on earth notices a rocket approaching from the right at a speed of 0.75c and another rocket approaching from the left at 0.60c. What is the relative speed between the two rockets, as measured by a passenger on one of them? ......c
You throw a stone vertically upward with an initial speed of 5.8 from a third-story office window. If the window is 12 above the ground, find the time the stone is in flight
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