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The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A .30 caliber bullet has mass 7.20*10^-3 and a speed of 601 relative to the muzzle when fired from a rifle that has mass 3.10kg . The loosely held rifle recoils at a speed of 2.05 m/s relative to the earth. Find the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifle.
a) 6.36 kg-m/s
b) 3.18 kg-m/s
c) 4.33 kg-m/s
d) 11.0 kg-m/s
e) 2.03 kg-m/s
Fresh water flows through a horizontal tube of diameter 2.65 cmthat is joined to a second horizontal tube of diameter 1.58 cm. What isthe speed of flow in the first tube
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two parallel plates each of area 6.27 cm2 are separated by 3.60 mm. the space between the plates is filled with air. a
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A string with a length of 0.7 m is fixed at both ends. find the frequency associated with this longest wavelength
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A lab will soon be able to accelerate electrons at restthrough a potential voltage of 12x1012 V. what is the electron's speed after being accelerated
Steam at 100°C is added to ice at 0°C, Find the amount of ice melted and the final temperature when the mass of steam is 14.0 g and the mass of ice is 52.0 g
Calculate the work done on a gas, the change in internal energy of the gas, the heat added to the gas, and the change in entropy of the gas when 1.12 moles of oxygen
A scientist notices that an oil slick floating on water when viewed from above has many dissimilar rainbow colours reflecting off the surface. She aims a spectrometer at a particular spot and measures the wavelength to be 750 {\rm nm} (in air). The i..
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