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A Ferris wheel with a radius of 14.0 m rotates at a constant rate, completing one revolution in 30.0s. What is the apparent weight of a 60.0-kg passenger when she is at the bottom of the wheel?
Water is flowing through a pipe with a constriction. The area of the narrow section is one-half the area of the wide section. what is the velocity of the fluid in the narrow section
An unknown resistor is connected between the terminals of a 7.50 V battery. Energy is dissipated in the resistor at the rate of 0.510 W. At what rate is energy now dissipated
A man sitting in a bosun's chair that dangles from a massless rope, which runs over a massless, frictionless pulley and back down to the man's hand. The combined mass of the man and chair is 86 kg. With what force magnitude should the man pull on ..
Two atomic particles approach each other in a head-on collision. Each particle has a mass of 1.81 x 10-25 kg. The speed of each particle is 2.13 x 108 m/s when measured by an observer standing in the laboratory.
A driver wearing a seatbelt decelerates at roughly the similar rate as the car itself. Since modern cars have a "crumple zone" built into the front of the car, the car would decelerate over a distance of roughly 1.20 m. Determine net force acting ..
Astronomers discover a binary star system that has a period of 93.0 days. The binary star system consists of two equal-mass stars, each with a mass twice that of the sun, that rotate like a dumbbell about the centre of mass at the midpoint between..
A cube of ice is taken from the freezer at -9.5°C and placed in a 105 g aluminum calorimeter filled with 323 g of water at room temperature of 20°C. What was the mass of the ice cube
A skycam captured a video from directly overhead of an ice skater performing a spin. When viewed from above she was spinning counter-clockwise. If you watched this video, what direction would her angular velocity vector be pointing? (according the th..
The spin cycles of a washing machine have two angular speeds, 431rev/min and 622rev/min . The internal diameter of the drum is 0.440m. Find the laundry's maximum tangential speed
A 9.0-V battery is connected in series with a 35-mH inductor, a 168-? resistor, and an open switch. How much energy is stored in the inductor at this time
A runner is going 25m/s around a curved section of tract that has a radius of 125m. What is the runner's acceleration
A factory worker pushes a 31.4kg crate a distance of 4.35m along a level floor at constant velocity by pushing downward at an angle of 30.3 degrees below the horizontal. What is the total work done on the crate
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