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A train starts from rest and accelerates uniformly, until it has traveled 3.2 km and obtained a velocity of 22 m/s. The train then moves at a constant velocity of 22m/s for 300 s. The train then slows down uniformly at 0.065 m/s2 until it is brought to a halt. Compute the total distance the train travels. Make a distance versus time graph and a speed versus time graph of the trains’ motion.
Look at the thin soap film interference pattern in the picture for conceptual question 28-11. Why are the colors in horizontal stripes instead of circles or crazy swirls or vertical stripes?
A 9 kg mass slides to the right on a surface having a coefficient of friction 0.37 as shown in the figure. The mass has a speed of 5 m/s when contact is made with a spring (of con- stant 107 N/m)
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle. What is his predicted landing velocity
The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 36--diameter loop-the-loop. What is the car's speed at the top?
An object of mass 4.0 kg starts at rest from the top of a rough 30 degree inclined plane of height 10 m. If the speed of the object at the bottom of inclined plane is 10 m/s, how much work does friction do on this object as it slides down incline?
as a laudably skeptical physics student you want to test coulombs law. for this purpose you set up a measurement in
A person wants to push a lamp ( mass 7.2 ) across the floor, for which the coefficient of friction is 0.20. calculate the maximum height x above the floor at which the person can push the lamp so that it slides rather than tips.
Objects with masses of 245 kg and a545 kg are separated by 0.490 m. Find the net gravitational force exerted by these objects
A near-sighted woman cannot focus on any object farther away than a distance x = 57 cm. Find the focal length of the lens which will correct her vision
What is the velocity of a beam of electrons that goundeflected when passing through perpendicular electric andmagnetic fields of magnitude8.8x 10 to the 3rd V/m and 3.5 x 10 tothe negative 3rd T, respectively
The drawing shows a baggage carousel at an airport. Your suitcasehas not slid all the way down the slope and is going around at aconstant speed on a circle (r = 10.4 m) as the carousel turns.
question a pump discharges a liquid into a drum aat the rate of 0.032 m3s. the drum1.5 m in dia and 4.2m in length can
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