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A flat sheet of sodium chloride has a thickness of 2.50 cm. It is on top of a flat sheet of fused quartz that has a thickness of 1.26 cm. Light strikes the sodium chloride perpendicularly and travels through it and then through the fused quartz. In the time it takes the light to travel through the two sheets, how far (in cm) would it have traveled in a vacuum?
An automobile with a mass of 940 kg goes around a curve with a radius of 64m.The coefficient of friction between the tires and the road is 0.700. Illustrate what is the maximum speed with which the car can go around the curve ?
An electron moves in the xy plane with a speed of 3.75 x 106 m / s at an angle 600 with the x-axis 300 and the axis. A magnetic field of 0.85T is in the positive direction of axis y. Find the magnetic force on the electron.
A 3.2-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system when the 3.2-kg block is replaced by a 4.1-kg block
A metallic sphere has a charge of +4.2 nC. A negatively charged rod has a charge of -6.0 nC. When the rod touches the sphere, 9.8 109 electrons are transferred. What are the charges of the sphere and the rod now?
An unstable elementary particle comes in two varieties, one with positive and one with negative electric charge, What is the difference (R+)-(R-) between the two rates, with its error
What is final speed of the block
What is Newtons Version of Keplers Third Law
A 50.0g silver spoon at 20.0c is placed in a cup of coffee at 90 c. How much heat does spoon absorb from the coffee to reach a temperature of 89c.
What is the coefficient of the kinetic friction of the tires and pavement.
A 300g ball on a 70-cm-long string is swung in a vertical circle about a point 200 cm above the floor. What was the tension in the string an instant before it broke
You bike at 10.5 m/s directly away from your neighbor's trumpet sound and toward the sound of another neighbor's trombone, What frequency is the trombonist producing
On a certain planet, a 10 kg rock has a gravitational potential energy of 1,056 J when it is resting on a cliff 12 m above the surface
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