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A platform is rotating at an angular speed of 1.9 rad/s. A block is resting on this platform at a distance of 0.33 meter from the axis. The coefficient of static friction between the block and the platform is 0.77. Without any external torque acting on the system, the block is moved toward the axis. Ignore the moment of inertia of the platform and find the smallest distance from axis at which block can be relocated and still remain in place as the platform rotates.
What is the net force exerted on the skier, assuming his acceleration is constant.
The electric field between two parallel plates is 5 X 10^3 V/M .IF the distance between the two plates is 5mm. what is the potential difference between the plates?
how long does it take light to travel 300,000 km in a vacuum? How far would a body near the surface of the earth fall in that time
At this point, person doing the laundry opens the lid, and a safety switch turns off the washer. The tub smoothly slows to rest in 11-s. Through how many revolutions does the tub turn while it is in motion.
A 6,000 lb car is traveling SW at 40 mph. it is hit by another car that weighs 7,000 lb and is traveling NNE at 50 mph. What is the speed and direction of the cars immediately after the collision
A commercial airliner is undergoing its initial ascent while the pilot maintains a cabin environment of T = 23C, r = 0.35, and p = 880 hPa. At the 670 hPa level an exit door ruptures and the cabin pressure rapidly decompresses (glad i'm not in this p..
At its highest temperature, a space heater has a resistance of 15.5 ?, What is the average power output of the space heater
q1. a rectangular container measuring 32 cm 34 cm 51 cm is filled with water. what is the mass of this volume of water
A revolving door consists of four rectangular glass slabs,with the long end of each attached to a pole that acts as the rotation axis. Find the rotational inertia of the entire door
A racecar with a speed of 60 m/s is taking a curve with a radius of 10 m. What is the acceleration of the racecar? What is the centripetal force acting on the car (mass = 400 kg)?
explain What is the magnitude of the electric field next to the sheet.
Compiute the average power output in horsepower. Calculate assuming the body is 14% efficient, what rate of energy input was required.
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