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A car is moving on a flat horizontal circular track of radius 120 m. The speed of the car is constant, 15m/s. The mass of the car is 1200 kg. Ignore air resistance.(a) What force is keeping the car in the circle?(b) Find this force (magnitude and direciton).
Two lenses are mounted in a tube such that the distance between them can be varied. What is the magnification achieved
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, Determine the cheetah's average acceleration during the short sprint
a transverse wave travels on a string in the positive x-direction. the tension in the string is 200 n and the linear
Two violinists, one directly behind the other, play for a listener directly in front of them. Both violinists sound concert A (440 Hz), What is the smallest separation between the violinists that will produce destructive interference for the listene..
What must the constant acceleration of the car be after the brakes are applied so that the car would come to rest at the stop sign.
the three capacitors c2.0 uf micro farad in parallel are connected across a 30- battery.a. find the charge on each
If a 12.1 eV photon was absorbed by a hydrogen atom initially in its ground state, which then emits 2 photons, what are the emitted photon wavelengths
questiona 1.00 ball is thrown directly upward with an initial speed of 16.0. a graph of the balls gravitational
two disks are rotating about the same axis. disk a has a moment of inertia of 7.64 kgmiddotm2 and an angular velocity
A person's body is covered with 1.8 m2 of wool clothing. How much heat per second does the person lose due to conduction
a game show contestant won a prize by pushing a bowling ball 20 m using her nose.the amount of work done was 1470 j. how much force did the contestant exert on the ball
At 26.0 m below the surface of the sea (density = 1 025 kg/m3), where the temperature is 5.00°C, estimate the volume of the bubble just before it breaks the surface
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