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An aircraft weighing 907 Newton is accelerated at 10.9 m/s2 for 5 s, at which time the aircraft launches. Suppose the acceleration is constant. Compute what force is required to launch the aircraft?
Calculate escape velocity for an object started at the surface of the earth, going straight up. Neglect any complications due to the earth turning.
A certain light source is found to emit radiation whose peak value has a frequency of 1.83E+15 Hz. Calculate the temperature of the source
The drag force on an object depends on the dimensionless drag coefficient, the density of air, the object velocity, and the frontal area of the object. By only considering units obtain a relation for the drag force
A 23 kg child goes down a straight slide inclined 38? above horizontal. The child is acted on by his weight, How large is the normal force of the slide on the child
A solenoid with a cross-sectional area of 1.97×10^3 is 0.810 long and has 480 turns per meter. Find the magnitude of induced emf in this solenoid
the rotating loop in an ac generator is a square 25 cm on each side with 320 turns of wire in the loop. it is rosted at
A violin string vibrates at 264 Hz when unfingered. At what frequency will it vibrate if it is fingered one fourth of the way down from the end
A spring with a force constant of 588N/m is compressed a distance of 42cm. Find the resulting increase in the spring's mass
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.40 10-4 m3 and its mass is 3.87 kg. a) What mass of gold is in the rock? b) What percentage of the rock is gold by volume? c) What percentag..
An electromagnetic plane wave is traveling through a vacuum along the positive z-axis. At a particular point in space at one instant in time the electric field vector is E=i(6V/m) + j(6 V/m).
A skier with a mass of 60 kilogram is pulled up a slope by a motor driven cable. Find what power must a motor have to perform this task
q1. the linear impulse delivered by the hit of a boxer is 248 n bull s during the 0.373 s of contact. what is the
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