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A 10.4-g bullet is fired into a stationary block of wood having mass m = 5.03 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.604 m/s. What was the original speed of the bullet?
Monochromatic light falling on two slits 1.5×10?2mm apart produces the fifth-order fringe at an 8.9?angle.
An airplane is flying due north at 180 m/s. The Earth's magnetic field has a northward component of 0.3 mT and an upward component of 0.34 mT. Which wingtip is positively charged
A sample of an unknown material appears to weigh 255 N in air and 195 N when immersed in alcohol of specific gravity 0.700. What is the volume of the material
An astronaut stands on the steps of her spaceship that is resting on the surface of planet x and drops a rock from a height of 4.5 metres. The rock hits the surface in 0.83 s. Determine the magnitude of the acceleration due to gravity on the surfa..
A certain loudspeaker (assumed to be a point source ) emits 30.0 W of sound power. Calculate the power intercepted by the microphone
Three moles of a monatomic ideal gas are heated at a constant volume of 2.23 m3. What is the change in the temperature of the gas
What is the range of frequency of the light emitted by the hydrogen atom
A 165 pF capacitor is connected in series with an unknown capacitor, and as a series combination they are connected to a battery with emf of 21.3 V. If the 165 pF capacitor stores 112 pC of charge on its plates, what is the unknown capacitance.
An electric motor rotating a workshop grinding wheel at 1.06 102 rev/min is switched off. How long does it take the grinding wheel to stop
A charged cloud system produces an electric field in the air near Earth's surface. A particle of charge -1.7 x 10-9 C is acted on by a downward electrostatic force of 3.0 x 10-6 N when placed in this field. What is the gravitational force on the pr..
aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, illustrate what is the grocery cart's final speed?
When an 82.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2 x 10^3 J. By how much does the potential energy of a 17 kg child increase when the child climbs a normal sta..
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