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A box with a mass of 5 kg initially moving at 3 m/s comes to rest in a distance of 9 m. If the acceleration is constant, what is the magnitude of the net force acting on the box?
When resting, a person has a metabolic rate of about 6.16 x 105 joules per hour. The person is submerged neck-deep into a tub containing 2.51 x 103 kg of water at 24.3 °C. If the heat from the person goes only into the water, find the water temper..
What is the gauge pressure (in kPa) of the air in the tires when its temperature rises to 26.5°C and its volume increases to 1.70 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
The cable lifting an elevator is wrapped around a 1.0-m-diameter cylinder that is turned by the elevator's motor. How long does it take for the elevator to stop
A 12.0-{rm kg} box resting on a horizontal, frictionless surface is attached to a 5.00-{rm kg} weight by a thin, light wire that passes over a frictionless pulley). The pulley has the shape of a uniform solid disk of mass 2.40 {rm kg} and diameter 0...
High-voltage power lines are a familiar sight throughout the country, What is the resistance of 15 kilometers of this wire
Parallel conducting tracks, separated by 2.79 cm, run north and south. There is a uniform magnetic field of 1.27 T pointing upward (out of the page). What is the direction of the magnetic force on the rod
The energy required to dissociate 1 mol of O2 to form 2 mole oxygen is 118kcal. find the wavelength of the photon
In the process of delivering maila postal worker walks 161 meter due east from his truck.he then turns around and walked 194 meter from his truck
When the afternoon Sun reaches an angle of 27.0° above the horizon, sunlight ceases to illuminate the bottom of the tank. Evaluate how deep is the tank?
A car crashes into a wall at 25 m/s and its contents are brought to rest in 0.1s. display that the average force exerted on a 75-kg test dummy by the seat belt is more than 18,000 N.
A 1-cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the water 64? from the normal. what is the ray's angle from the normal
A 10 kg box is on the flatbed of a truck that is accelerating along a straight horizontal road. What is the max acceleration the truck can reach without the box falling
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