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A tire 2.0 ft in diameter is placed on a balancing machinewhere it is spun so that its tread is moving at a constant speed of59 mph. A small stone is stuck in the tread of the tire. What is the acceleration of the stone as the tire is being balanced? inft/s2 (seconds squared)
A 20-kg rotating disk of radius 0.30m has an angular momentum of 0.40kg?m2/s. What is the angular speed of the disk
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.50 1011 m apart. What is the mass of the smaller star
A cylindrical copper cable carries a current of 1290 A. There is a potential difference of 1.60 10-2 V, What is the radius of the cable
Three charges are fixed to an x, y coordinate system. A charge of +20 µC is on the y axis at y = +3.0 m, Determine the magnitude and direction of the net electrostatic force on the charge at x= +3.0 m
A ball of clay weighing 0.5 kg is thrown at a pendulum bob at rest weighing 4-kg. What is the velocity of the pendulum bob
When the pitcher throws his fastball aimed at the clay, the ball becomes embedded in the clay and the two swing up to a maximum height of 0.11 m. If the mass of the baseball is 0.21 kg, find out the speed of the pitch. Please provide step by step ..
The string connecting the m1 and the m2 passes over a light frictionless pulley. Find the downward acceleration of m2 mass.
Office Window An office window has dimensions 3.9 m by 2.2 m. As a result of the passage of a storm, the outside air pressure drops to 0.96 atm, but inside the pressure is held at 1.0 atm. What net force pushes out on the window?
A volleyball is spiked so that it has an initial velocity of 16.5 m/s directed downward at an angle of 53.1 ° below the horizontal. determine the horizontal component of the ball's velocity
A 1,220-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,800-kg truck moving in the same direction at 20.0 m/s, What is the velocity of the truck right after the collision
The position of an object as a function of time is given by x= bt + ct3, where b = 1.50 m/s and c = 0.640m/s3. calculate the averagevelocity of the object over time intervals
A potential difference of 87mV exists between the inner and outer surfaces of the cell membrane. The inner surface is negative relative to outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the cell.
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