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An aircraft weighing 971 N is accelerated at 9.1 m/s/s for 5 seconds, at which time the aircraft launches. Assume the acceleration is constant. What is the force required to launch the aircraft? Hint: this is a multiple step problem in which you must derive the variables needed in Newton's equation for force.
A galvanometer has a coil resistance of 29.0 ?. It is to be made into a voltmeter with a full-scale deflection equal to 100.0 V, what size resistor should be placed in series with the galvanometer
A block of mass .250 kg traveling at (1.0 m/s)y hits a second block with a .375 kg mass travelling at (1.2m/s)x.
On a clear day at a certain location, a 100 V/m vertical electric field exists near the Earth's surface. Compute the energy density of the electric field
A skier of mass 73 kg is pulled up a slope by a motor-driven cable, What power (expressed in hp) must a motor have to perform this task
A car (m = 1510 kg) is parked on a road that rises 18° above the horizontal. find the static frictional force that the ground exerts on the tire
Two sound sources radiating in phase at a frequency of 580Hz interfere such that maxima are heard at angles of 0 and 24 from a line perpendicular to that joining the two sources. Find out the seperation between the two sources. The velocity of sou..
What vertical height does block reach above its starting point. What speed does it have when it slides back down to its starting point.
what is the rate of heat transfer from the plate to the air? If the free stream velocity if the air is doubled and the pressure are increased to 10 atm, what is the rate of heat transfer.
A portable CD player operates with a voltage of 8.00 V, and its power usage is 0.264 W. Find the current in the player
We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed 187 m/s. We have a large and powerful spring whose stiffness is 3.0 105 N/m. Explain how much mus..
The car and minivan collide and stick together. Suppose the direction of the wreckage after the impact is 42.0° above the x axis.
A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is vertical to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s.
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