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A 85.6-kg wrecking ball hangs from a uniform heavy-duty chain having a mass of 27.0kg. (Use 9.80m/s2 for the gravitational acceleration at the earth's surface.)
Find the maximum tension in the chain.
What is the tension at a point three-fourths of the way up from the bottom of the chain?
What should the charge (sign and magnitude) of a particle of mass 1.47 be for it to remain stationary when placed in a downward-directed electric field of magnitude 610.
A meter stick is pivoted at the 0.50 m line. A 3kg object is hung from the 0.15-m line. Where should a 5kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?
Calculate the y-component of the magnetic force.
A child loses his balloon, which rises slowly into the sky. If the balloon is 23 cm in diameter as the child loses it, what is its diameter at the following altitudes? Assume that the balloon is very flexible and so surface tension could be neglec..
What friction torque is required to reduce its angular speed from 80.0 to 51 in 27.
A proton is travelling to the right at. It has a head-on perfectly elastic collision with a carbon atom. The mass of the carbon atom is 12 times the mass of the proton. What are the speeds of each after the collision? What is the direction of the pro..
Apply those results to get how much slower a clock goes near the earth than one, which is higher up.
Consider a concave mirror with a focal length of 18.90 cm. Find the location of the image when the object is 10.20 cm from the mirror. What is the magnification of the image? What is the radius of curvature of the mirror in cm? Is is virtual and u..
A 800kg car pushes a 1800kg truck that has a dead battery. When the driver steps on the accelerator, What is the magnitude of the force of the car on the truck
The rope is inclined at 20.30° above the horizontal, and the sledge moves a distance of 20.3 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500.
At what speed does the speed of the ball change relative to the cab floor (sign and magnitude)?
The effects of the spin of the earth
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