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A bullet of 0.0500 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, and the bullet penetrates .15 m into the block of wood, determine:
a) The average force required to stop the bullet.
b) The impulse exerted by the wood on the bullet.
c) The change in momentum of the bullet.
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 302 K and the refrigerator is kept at a temperature of 276 K. find the coefficient of performance of this refrigerator
To increase the resolving power of a microscope, the object and the objective are immersed in oil (n = 1.54), what is the limiting angle of resolution with the oil
A rod 89 cm long moves in a plane perpendicular to a magnetic field of 510. G. The velocity of the rod is perpendicular to its length. Find the speed of the rod
A particle of charge +9.2 ?C is released from rest at the point x = 55 cm on an x axis, What is the kinetic energy of the particle at the instant it has moved 12 cm if Q = +61
Hydrogenic atoms in an ultraviolet light fall from energy quantum state n = 9 to state n = 2 while releasing ultraviolet photons. How many photons are being released per second
Huygens' principle (first described by the Dutch scientist Christiaan Huygens in 1678) uses geometry to determine the shape of a wavefront at a time.
A hydrogen atom in the ground state absorbs a 20 eV photon. What is the speed of the liberated electron
A 2.11-cm2 wafer of pure silicon is irradiated with electromagnetic radiation having a wavelength of 775 nm. How many electron-hole pairs are produced in one second
At Earth location, the intensity of sunlight is 1.5 kW/m2. by how much would Earth's mass increase in 1 day
What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g.
An electron of mass 9.11 10-31 kg has an initial speed of 2.80 105 m/s. Determine the magnitude of the force exerted on the electron
A 0.350-{\rm m}-long cylindrical capacitor consists of a solid conducting core with a radius of 1.25mm, Calculate the energy stored in the capacitor when fully charged
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