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A uniform drawbridge must be held at a 37 degree angle abovethe horizontal to allow ships to pass underneath. The drawbridgeweighs 45000 N and is 14.0 m long. A cable is connected 3.5 m fromthe hinge where the bridge pivots and pulls hoizontally on thebridge to hold it in place.
a) What is the tension in the cable?
b) Find the magnitude and direction of the force the hingeexerts on the bridge.
A projectile is fired straight upward from Earth's surface with a speed that is 0.816 times the escape speed. what is the highest altitude reached measured from the surface of the Earth
A person weighs 670N steps onto a spring scale in the bathroom, and the spring compresses by 0.79 cm. What is the spring constant? And what is the weight of another person who compresses the spring by 0.34 cm.
An alpha particle is moving at a speed of 5.0 × 105 m/s in a direction perpendicular to a uniform magnetic field of strength 0.040 T. What is the radius of the path of the alpha particle
A 2kg uniform cyclinder is released at the top of a 1.53 m 11 degree incline. What is the velocity when it reaches the bottom
An airplane is sent on a rescue mission to help a stranded explorer near the South Pole. The plane cannot land, but instead drops a supply package of mass m = 58 kg while it is flying horizontally with a speed of vp = 116 m/s. What is the mass of ..
A jumbo jet has a mass of 2.3 × 105 kg and a total wing area of 950 m2, what is the difference in pressure between the upper and lower wing surface
A company uses a process cost accounting system and the weighted average method for inventory costs. Calculate the equivalent units of production for direct labour for the year.
Two identical uniform poles of mass 50 kg and linear mass density 15 kg/m are supported by pivots 2 m apart on level ground. what angle do the poles make with the vertical
A harvest mouse can detect sounds as quiet as -10 . Suppose you are sitting in a field on a very quiet day while a harvest mouse sits nearby at the entrance to its nest. How far is the harvest mouse from the leaf
A 50 kg person stands at the edge of a 7.4 m diameter circular platform, What is the magnitude of the speed of the person (in m/s) with respect to the ground
A child's toy consists of a m = 26 g monkey suspended from a spring of negligible mass and spring constant k. calculate the speed of the monkey in Ve m/s as it passes through equilibrium
The angular momentum of a spinning wheel is 230 kg · m2/s. After application of a constant braking torque for 2.2 s, What is the torque applied
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