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A model airplane with mass 0.750-kg is tethered by a wire so that it flies in a circle of radius 30.0-m. The airplane engine provides a force of 0.800-N perpendicular to the tethering wire. (Consider the airplane to be a point mass)
(a) Find the torque that the net thrust produces about the center of the circle.
(b) Find the angular acceleration of the airplane.
(c) Find the linear acceleration of the airplane tangent to its flight path.
A 1442 kg car is traveling south, and a 2028 kg van is traveling west. what is the speed of each vehicle
A person of mass 72-kg stands at the center of a rotating merry-go-round platform of radius 2.80 m and moment of inertia 930 kgcdot m^2. The platform rotates without friction with angular velocity 2rad/s. The person walks radially to the edge of t..
The charge on a capacitor increases by 21\mu C when the voltage across it increases from 99V to 119V. What is the capacitance of the capacitor
an object has a kinetic energy of 312 J and a momentum of magnitude 20.3 kg × m / s 1, find the speed of the object
A fire engine moving to the right at 40 m/s sound its horn (frequency = 500 Hz) at the two vehicles shown in the figure. The car is moving to the right at 30 m/s, while the van is at rest. (a) What frequency is heard by the passenger in the car?
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A sprinter accelerates from rest to a top speed with an acceleration whose magnitude is 3.53 m/s2. how far does he run during the acceleration phase
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