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the uniform beam below is 4.0meters long and has mass 30.0kg. Find the tension in the rope and the force exerted by the building on the beam by the building?
A bungee jumper has a mass of 68 kg. If he jumps off a bridge that is 200. m high and uses a bungee cord that is 75 m long with a spring constant of 20. N/m
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. What is the volume flow rate through the pipe
How would you describe the discoveries of Benjamin franklin, Robert millikan, cgarles-augastin de coulomb and Ernest ruthford
A ball with a vertically downwards initial velocity v(0) = 3 m/s collides with a fixed inclined surface. find the velocity of the ball after it rebounds
You are an engineer in charge of designing a new generation of elevators for a prospective upgrade to the empire state building. Before the state legislature votes on funding for the project.
A 3.4-cm-diameter parallel-plate capacitor has a 1.8mm spacing. The electric field strength inside the capacitor is 1.3×105V/m, What is the potential difference across the capacitor
A hungry 650 -N bear walks out on a beam in an attempt to retrieve some "goodies" hanging at the end, what is the maximum distance the bear can walk before the wire breaks
Big Ben, the Parliament Building tower clock in London, has hour and minute hands with lengths of 2.70 m and 4.50 m and masses of 60.0 kg and 100 kg, respectively. Calculate the total angular momentum of these hands
A series RLC circuit has components with the following values: L = 22.0 mH, C = 94.0 nF, R = 30.0 ?, and ?Vmax = 100 V, with ?v = ?Vmax sin ?t. Find the amplitude of the voltage across the inductor
a bicyclist of mass 54 kg puts all his weight on each downward-moving pedal as he pedals up a steep road. determine the magnitude of the maximum torque he exterts in the process
Two carts with masses of 12.5 kg and 4.5 kg, respectively, move in opposite directions on the frictionless horizontal track with speeds of 8 m/s and 5 m/s, respectively. The carts stick together after colliding head-on. Find the final speed of the..
A mass-spring system oscillates with an amplitude of 4.60 cm. If the spring constant is 240 N/m and the mass is 435 g, determine the mechanical energy of the system. Calculate the speed of the sphere's CM at the bottom of the ramp. Determine the m..
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