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Cat rides a merry-go-round turning counter clock wise at a uniform speed. There, the cat is under uniform circular motion. At time t1= 2.00s. the cat's velocity is v1= (4.00)i + (3.00)j measured on a horizontal x-y coordinate system. at time t2 = 5.00s. Its velocity is v2 = (3.00)i + (4.00j What is the period T i.e. what is the time taken by the cat to complete a full circle?
An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. find the total kinetic energy of the automobile
The rope makes an angle of 70° with respect to the vertical. What is the tangential speed of the ball.
The transverse displacement (y) of a wave is given as a function of position (x in meters) and time (t in seconds) by the expression to the right. Determine the wavelength, frequency, period, and phase constant of this waveform.
Problem on elevator
You push with a 20N horizontal force on a 2 kg mass resting on the horizontal surface against a horizontal friction force of 12N. What is the acceleration.
A parallel-plate capacitor with plate area3.5cm2 and air-gap separation 0.50?mm is connected to a 12-V battery, How much work was required to pull the plates to their new separation
Suppose that a police car on the highway is moving to the right at 29 m/s, while a speeder is coming up from almost directly behind at a speed of 31 m/s, which wave has the greater frequency
A 38.0 kg box initially at rest is pushed 4.00 m along a rough, horizontal floor with a constant applied horizontal force of 125 N. determine the final speed of the box
A helicopter rises vertically with a constant upward acceleration of 0.38 m/s^2 . As it passes an altitude of 20m , a wrench slips out the door. How soon does the wrench hit the ground? At what speed does the wrench hit the ground?
A positive charge Q1 = 3.00 µC is in the origin and a negative charge Q2 = -5.00 µC is at point x = 11m. where the electric potential equals zero
Suppose manufactures increase in size of compact disks. By what factor will the moment of inertia increase
On the Moon\'s surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. What is the difference in travel time for light that travels only through space to the moon and back and light that travels through..
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