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A 85 kilogram scaffold is 6.8 meter long. It is hanging with two wires, one from each end. A 520 kilogram box sits 1.6 meter from the left end. Determine the tension in the right hand side wire?(g = 9.8 m/s2)
In a butcher shop, a horizontal steel bar of mass 4.57 kg and length 1.27 m is supported by two vertical wires attached to its ends. What is the tension in the right wire
An air bubble is expelled by an underwater diver at a depth of 17.2 m. Find the final volume of the bubble if its initial volume is 10.4 cm3
when boiling water a hot plate takes an average of 464 seconds to boil 110 milliliters of water. assume the temperature
A rocket traveling at 0.450c sets out for the star, which is 4.35ly away from earth. According to the stay-at-home earthlings, how long will the journey last
A catapult with a radial arm 4.15 m long accelerates a ball of mass 18.7 kg through a quarter circle. The ball leaves the apparatus at 49.7 m/s. Find the net torque exerted on the ball and arm
An elevator is initially moving upward at a speed of 11.64 m/s. The elevator experiences a constant downward acceleration of magnitude 4.12 m/s2 for 3.21s. Find the magnitude and direction of the elevator's finalvelocity.
When a battery is connected to a 100.0-? resistor, the current is 4.00 A. When the same battery is connected to a 400.0-? Find the emf supplied by the battery
question planet a has a radius of 750 km and an acceleration due to gravity of .47 ms2. what are the escape speed from
Find the moment of inertia of a hoop (a thin-walled, hollow ring) with mass and radius about an axis perpendicular to the hoop's plane at an edge. Express your answer in terms of the variables M and R.
A 320 hp car engine can deliver that maximum power at 7000 rpm. What is the engine's torque at that speed
two satelities s1 and s2 revolve round a planet in coplanar circular orbits in the same sense. their periods of
Two charged balls are 20.0 cm apart. They are moved, and force on each of them is tripled. How far apart are they now.
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