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Two balls of the same mass areaccelerated by the different net forces such that one ball gains avelocity twice that of the other ball in the process. Is the workdone by the net force acting on the faster-moving ball twice thatdone on the slower-moving ball? Explain.
A 5 kg piece of metal displaces 0.75 L of water when submerged. What is the buoyant force on the piece of metal
A subway train is traveling at 83 km/h when it approaches a slower train 46m ahead traveling in the similar direction at 23 km/h.If the faster train begins decelerating at 2.1 meter per second square while the slower train continues at constant s..
A He-Ne laser beam with an intensity of 1.00 103 W/m2 is incident from air to dense flint, Find the intensity of the beam transmitted into the dense flint
Capacitors C1 = 5.0 µF and C2 = 2.0µF are charged as a parallel combination across a250 V battery. Calculate the resulting charge on each capacitor
Calculate the force on a dielectric slab inserted partly into a parallel plate capacitor with plate dimensions L and w, with a length x of the dielectric lying between the plates. Assume that the plates are isolated, so the charge ±Q on the plates..
A 2.0-cm-tall object is 20 cm in front of a converging lens that has a 10 cm focal length. Calculate the image position and height
When viewed by an observer on the Earth, light from a distant galaxy is Doppler shifted to the red such that the ratio of the unshifted frequency to the observed frequency is 2.1
It was a dark and stormy night, when suddenly you saw a flash of lightning. Three-and-a-half seconds later you heard the thunder. Given that the speed of sound in air is about 340 m/s, how far away was the lightning bolt?
A flywheel in a motor is spinning at 580 {rm rpm} when a power failure suddenly occurs. The flywheel has mass 40 {rm kg} and diameter 75 {rm cm}.
The charge on a capacitor increases by 21\mu C when the voltage across it increases from 99V to 119V. What is the capacitance of the capacitor
During heavy rain, a rectangular section of a mountainside measuring 2.8 km horizontally, 0.80 km up along the slope, What is the mass of the mud sitting above an area of 4.0 m2 in that section
A 2.00-cm-diameter parallel-plate capacitor with a spacing of 0.600mm is charged to 300V, What is the total energy stored in the electric field
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