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a 1340-kg car has just passed a diner. The closest the car came to the diner was R=16.5m, but the car has driven another x=22.7m in the 2.05 seconds elapsed since then. If the car travels at constant speed, what is the current magnitude of the anguar momentum of the car about the diner in units of kg x m^2 / s?
A mercury manometer is connected to a container of gas. if the gauge pressure of the gas doubles, what are the new heights of the two columns
Four charges of equal magnitude Q = 65 nC are placed on the corners of a rectangle of sides D1 = 25 cm and D2 = 10 cm. calculate the numeric value for the vertical force
A 25 kg box is released from rest on a frictionless ramp making an angle of 42o with the horizontal. Determine the normal force on the box
Your car's fan belt turns a pulley at 3.15rev/s . When you step on the gas for 1.55s , find Through what angle did the pulley turn while accelerating
A crate of mass 150.0 kg lies at rest on a horizontal storage room floor. The coefficient of static friction between crate and floor is 0.72, and the coefficient of kinetic friction is 0.85. (You may suppose g = 10.0m/s2).
Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do.
A 21.5 µF spherical capacitor is composed of two metallic spheres, one having a radius twice as large as the other, determine the volume of this region
Consider a particle of mass m moving freely in a two dimensional rectangular box with impenetrable walls. The dimensions of the box are ax and ay. Derive the wavefunction for the particle
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. What force does the winning player exert on the ground
Assume that the universe is a spherical cavity with a radius of 10^26 m and temperature of 2.7 K. How many thermally excited photons are there in the universe
1. starting from rest a proton falls through a potential difference of 2700 v. what speed does it acquire?2. a long
A solid sphere has a temperature of 408 K. The sphere is melted down and recast into a cube that has the same emissivity, What is the cube's temperature
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