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At a county fair, a boy and two friends bring their teddy bears on the giant Ferris wheel. The boys are seated in positions 45° from each other. Boy 3 is ahead of boy 2 who is ahead of boy 1 . The wheel has a diameter of 16.7m , the bottom of the wheel is 2.63m above the ground and its rim is moving at a speed of 1.95m/s . When the wheel brings the second boy to the maximum height (so boy 3 is already on the way down and boy 1 is still on the way up), they all drop their stuffed animals. How far apart will the three teddy bears land?
A parallel-plate air capacitor is made from two plates 0.070 square, spaced 9.3 apart. What must the potential difference between plates be to produce an energy density of.
There are two protons of a helium atom seperated by 1.00e-15m, If the protons were allowed to move, what would be their initial acceleration due to the electric force between them
Block B in the figure weighs 760 N. The coefficient of static friction between block and table is 0.28; angle ? is 27°; Find the maximum weight of block A for which the system will be stationary
Two 2.50-cm-diameter disks spaced 2.00mmapart form a parallel-plate capacitor. The electric field between the disks is 4.60×105V/m. What is the voltage across the capacitor
At the point he throws a 50.0 yards forward pass straight down the field. Illustrate what is the magnitude of the football's resultant displacement?
Calculate the capacitance of a planet, assuming it is a spherical capacitor of radius R = 9050.0 km with charge distributed throughout the volume of the sphere
A wheel 65 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7s. How far will a point on the edge of the wheel have traveled in this time.
A 75 , 33 long rod hangs vertically on a frictionless, horizontal axle passing by its center. A 12 ball of clay traveling horizontally at 2.6 hits and sticks to the very bottom tip of the rod.
An object starts from rest at t= 2 s at an initial position of x = 7.2 m and moves with constant acceleration. What is the magnitude of the acceleration of the object
What is the Acceleration of an object moving on a circular track
A resistor with R = 2.4 k? is connected to an AC generator that operates at 60 Hz with an amplitude of 41 V. Find the average power dissipated in the resistor
how to convert ac current to dc current? is there any conversion factor? how to select an autotransformer for dc motors
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