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When tuning a piano string to middle C (262 Hz) using a tuning fork, you hear 4 beats per second. What are the two possible frequencies that the piano string is currently tuned to?
Determine the capacity of a roll crusher. The separation is 7 mm, speed of the rollers is 50 rpm, roller diameter is 23 cm, roller length is 0.4 m
A body is traveling at3.0 m/s along the positive directionof an x axis; no net force acts on the body. What is the speed of the forward part
Two thin lenses with a focal length of magnitude of 12 centimeter. The first converging and the second diverging are placed 20 centimeter apart. Find how far from this first lens in the final image formed
A 100kg truck is pulled across rough ground by a rope angled at 30 degrees to the horizontal. The coefficient of sliding friction is .34. Find the maximum Acceleration without the truck leaving the ground.
Two V belt pullies form an integral unit and rotate about a fixed axis at O. At a certain instant point A on the belt of the smaller pully has a velocity of Va = 1.5 m/s.and point B on the belt of the larger pully has an acceleration of ab = 45m/..
A stone is swinging in a horizontal circle 0.9 meter in diameter, at the angular speed of 32 rev/m. Determine the amplitude of the shadow motion
The coefficients of static and kinetic friction are 0.2 and 0.1 respectively. What is the minimum magnitude of the force F, parallel to the plane, that will prevent the block from slipping
A Styrofoam cup holding 155 g of hot water at 97°C cools to room temperature, 23.0°C. What is the change in entropy of the room
A rifle is aimed horizontally at a target 30 m away. the bullet hits the target 1.9 cm below the aiming point. a.) What are the bullet's time of flight and b.) its speed as it emerges from the rifle?
A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of 2.20 m/s2. The car makes it one quarter of the way around the circle before it skids off the track. From these data, determine the ..
A physics book slides off a horizontal tabletop with a speed of 2.70m/s . It strikes the floor in 0.350s . Ignore air resistance. Find the height of the tabletop above the floor
A Packing crate is placed on a 20 degree inclined plane. Ifthe coefficient of the static friction between the crate and theplane is 0.65, will the crate slide down the plane
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