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A 3280 kg demolition ball swings at the end of a 17.1 m cable onthe arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 2.72 m/s. Determine the tension in the cable.
A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. When the sphere comes to rest, what fraction of its volume will be submerged
A rod moving in the positive x direction is measured by a stationary observer to have a length of 10.0meters, Find the speed of the second observer as measured by the stationary observe
a trailer truck enters a 2 percent uphill grade traveling at 72 kmh and reaches a speed of 108 kmh in 300 m. the cab
A 450 gram ball of copper at 20.0 degree C is placed in a pot of boiling water until equilibrium is reached. How much thermal energy is absorbed by the ball
chlorine gas is generated in situ from hcl and naclo3 in an oxidation-reduction reaction. what compound is oxidized and
If a simple pendulum with length 1.5m makes 72 oscillations in 180 s, what is the acceleration of gravity at its location
A certain storm cloud has a potential difference of 2.00*108 V relative to a tree. If, during alightning storm, 55.0 C of charge istransferred through this potential difference and 1.00% of the energy is absorbed by the tree, how much water (sap i..
A thin, light wire is wrapped around the rim of a wheel, The wheel rotates without friction about a stationary horizontal axis that passes through the center of the wheel. what is the mass of the wheel
In a 6.5×10?3-m3 volume of ideal gas at the pressure of 2.7×106 Pa, How many molecules are in the sample
A 1.00 Kg ball is shot out of a cannon inclined at 40 degrees, by a spring initially compressed by 0.500 m. Where does the ball land relative to the cannon
you are to establish a procedure for measuring the radioactivity of samples placed in a counter. the calibration of the
Consider resistors R1 and R2 connected in series E R1 R2 and in parallel E R1 R2 to a source of emf E that has no internal resistance. How does the power dissipated by the resistors
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