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A small block with mass 0.0525kg slides in a vertical circle of radius 0.0750m on the inside of a circular track. There is no friction between the track and the block. At the bottom of the block's path, the normal force the track exerts on the block has magnitude 3.85N
What is the magnitude of the normal force that the track exerts on the block when it is at the top of its path?
A 10 runaway grocery cart runs into the spring with spring constant 230 and compresses it by 65. What was the speed of the cart right before it hit the spring.
What would be the final temperature of 100g of 16°C water when 107 g of 40°C iron nails are submerged in it? (The specific heat of iron is 0.12 cal/g °C. Here you must equate the heat gained by the water to the heat lost by the nails.)
How is sound produced and how are standing waves set up in the instruments? Key words: incident, reflected, interference, wavelength, string/pipe length
A 2.9 kg block is released from rest on a 45° inclined ramp. The block will lose energy to friction at a constant rate of 4 J/m as it slides down the ramp
Suppose the temperature of 4.67 L of ideal gas drops from 354 K to 275 K. Find the number of moles of gas
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.61 km. What is the direction of the couples displacement
A 3.9kg ball with a velocity of 3.2m/s in the +x-direction collides head-on elastically with a stationary 1.5kg ball. What is the speed of the first ball after the collision
A creamy salad dressing is made up of heavy cream, corn oil, If the cream layer is 2.20×10?2 m tall, the oil layer 2.80×10?2 m tall, and the vinegar layer 8.000e-3 m tall, what is the gauge pressure at the bottom of the jar
A thin film of water sits on top of a flat piece of glass, and light is incident from below, what is the angle of refraction of the final outgoing ray
Angular speed is the increased to 10 rad/2 over the next 4 seconds. Illustrate what is the average tangential speed at the edge of the grindstone during this time
A ball of mass 0.40 kg is fired with velocity 140 m/s into the barrel of a spring gun of mass 2.1 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
A sphere of radius r starts from rest and rolls without slipping along a curved surface, Find the final speed v of the sphere's center of mass
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