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A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.40 x 105 N. In being launched from rest it moves through a distance of 60.2 m and has a kinetic energy of 7.96 x 107 J at lift-off. What is the work done on the jet by the catapult?
A supersonic jet passes directly overhead at an altitude of 11,585 m, traveling at 680 m/s, or mach 2. How much time elapses before you hear the sonic boom
Two parallel conductive plates of area 0.3m2 hold equal-but-opposite charges of magnitude 30?C on either side. calculate the electric field between the plates
The distance between the objective and eyepiece lenses in a microscope is 25\; cm. What is the total linear magnification for the microscope
You are standing in air and are looking at a flat piece of glass (n = 1.52) on which there is a layer of transparent plastic, Find the smallest possible nonzero value for the thickness of the layer
A motorcycle has a constant speed of 28.1 m/s as it passes over the top of a hill whose radius of curvature is 130 m. Find the magnitude of the centripetal force
the period of rotation of the moon is about 27 days, 8 hours. The mass of the moon is 7.35x10^22 kg, Find the radius of the satellites orbit
q1. for safety in climbing a mountaineer uses a nylon rope that is 69 m long and 1.0 cm in diameter. whilst supporting
A 12mm-high object is 10cm from a convex mirror with focal length 17cm. How far is its image from the mirror
Methane (CH4) is burned with the 20% dry excess air at 227C. Combustion occurs at one atmosphere. Determine the adiabatic flame temperature (C)
A shell is fired from a gun with a muzzle velocity of 25 m/s, at an angle of 60° with the horizontal. How far from the gun does the other fragment land
How far from a 53.6 mm focal-length lens must an object be placed if its image is to be magnified 2.12X and be real.
A refrigerator has a surface area of 6.04 m2. It is lined with 0.0885-m-thick insulation whose thermal conductivity is 0.0300 J/(s m C °). How much heat per second is being removed from the unit
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