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A certain drawbridge can be modeled as a uniform 1.60×104N bar, 10.0m long, pivoted about its lower end. When this bridge is raised to an angle of 60.0 above the horizontal, the cable holding it suddenly breaks, allowing the bridge to fall. At the instant after the cable breaks,At the instant after the cable breaks what is the torque on this bridge about the pivot? At the instant after the cable breaks at what rate is its angular momentum changing?
A 98 ? resistor is connected in series with a 177 mH inductor and a 1.4 ?F capacitor. Find the effective voltage Vrms across the capacitor
Find the maximum altitude reached by the rocket.
In a piston-cylinder assembly, 20 KJ of boundary work is being done on the piston. determine the axial displacement of the piston
To start a great night of doing physics homework, you sit down to pour yourself a good cup of coffee. What is the final temperature of coffee and mug once they come to thermal equilibrium
A tennis player tosses a tennis ball straight up and then catches it after 3.40 s at the same height as the point of release. What is the maximum height (in m) the ball reaches
The surfer is catching a wave. Suppose she starts at the top of the wave with a speed of 1.5 m/s, how much work is done by the (nonconservative) force of the wave
A 72-kg base runner begins his slide into second base when he is moving at a speed of 3.9 m/s. How far does he slide
Ligh of wavelength 610 nm is incident on a slit 0.20 mm wide, what is the width of the central maximum
A Chinook wind blowing at 800mb has a temperature of 100F and a mixing ratio of 4 g/kg. Is this the same as the air at 1000mb on the windward side of the mountains having a temperature of 294.5K and a mixing ratio of 10 g/kg or is it the same as t..
A train has a speed of v = 66.5 km/h. If the acceleration experienced by the passengers is to be less than 0.35 g, find the smallest radius of curvature R acceptable for the track
The centers of a 15kg lead ball and a 50g lead ball are separated by 10cm, What is the ratio of this gravitational force to the weight of the 50g ball
An unknown mass is placed on one side of the Atwood's machine. The downward acceleration of the mass 5kg is observed to be exactly one-half of the acceleration due to gravity. determine the tension force and the unknown mass
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