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The model airplane in Figure 5.7 is flying at a speed of 14.4 m/s on a horizontal circle of radius 17.2 m. The mass of the plane is 1.19 kg. The person holding the guideline pulls it in until the radius of the circle becomes 10.3 m. The plane speeds up, and the tension in the guideline becomes four times greater. What is the net work done on the plane?
_____ Units J
A block rests on a spring and oscillates with a frequency of 4Hz and an amplitude of 7cm. What is the speed of the bead at the instant when it loses contact with the block
M1 is a spherical mass (43.0 kg) at the origin. M2 is also a spherical mass (17.2 kg) and is located on the x-axis at x = 99.0 m. At what value of x would a 16.5-kg mass experience no net gravitational force due to M1 and M2?
A thin uniform cylindrical turntable of radius 2.5 m and mass 32 kg rotates in a horizontal plane with an initial angular speed of 10 rad/s. Calculate the loss of energy to thermal energy
A charge of 0.43 C is spread uniformly throughout a 36 cm rod of radius 7 mm. What are the volume and linear charge densities
A drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first springs, determine the weight of the block hanging from the third spring
You are consulting for an amusement park that wants to build a new "Rotor" ride. What must be the angular speed in revolutions per minute
A 3.80-kg cylindrical rod of length 2.00 m is suspended from a horizontal bar so it is free to swing about that end. What is the angular velocity of the rod immediately after the collision
A car of mass 1.00×103kg and a truck of mass 4.10×103kg run into one another due to ice on the road. Calculate the size of the force on the car due to the truck at that time
Find out the magnitude of that push.
A person who weighs 672 N is riding a 100-N mountain bike, what is the area of contact between each tire and the ground
an experiment measures the speed of a 250-kilogram motorcycle every 2 seconds. the motorcycle moves in a straight
An AC voltage of the form ?v = 100 sin 1 000t, where ?v is in volts and t is in seconds, is applied to a series RLC circuit. Find the average power delivered to the circuit
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