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Q. A car travels along a horizontal curved road that has a radius of 600 m. If the speed is uniformly increased at a rate of 2000 km/h2, determine the magnitude of the acceleration at the instant the speed of the car is 60 km/h.
Q. A 5 cm-thick layer of oil is sandwiched between a 1 cm-thick sheet of glass and a 2 cm-thick sheet of polystyrene plastic.
How long (in ns) does it take light incident perpendicular to the glass to pass through this 8 cm-thick sandwich?
A 6 kg box is held at rest by two ropes that form a 30 degree angle with the vertical. and external for F acts vertically downward on the box.
What types of lifestyle changes will be brought about by living in a house whose space heating and hot water needs are supplied almost completely by the sun.
Find an equation for the change in wavelength of a scattered photon by Compton effect.
Suppose that the light is incident at right angles to the film. what is the minimum distance from the slits to the screen when 580 nm light is used.
A spaceship of proper length 306 m takes 0.70 µs to pass an Earth observer. find the speed of this spaceship as measured by the Earth observer.
A bolt is dropped from a bridge under construction, falling 92m to the valley below the bridge. (a) How much time does it take to pass through the last 26 percent of its fall? What is its speed (b) when it begins that last 26 percent of its fall a..
What volume of space contains an energy equal. A car in stop-and-go traffic starts at rest, moves forward 12m in 8 seconds, then comes to rest again. The velocity-versus-time plot for this car is given.
When catching a baseball, a catcher's glove moves by 12cm along the line of motion of the ball. If the baseball exerts a force of 477N on the glove, how much work is done by the ball.
How much work is completed by the system in this process. Determine the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C. How much work is completed by the system in this process.
A 3.10 kg steel ball strikes a wall with a speed of 10 m/s at an angle of 60 ° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.190 s, what is the average force exerted on the ball by th..
define How long are the skid marks. calculate the time it takes the sled to go 21 m down the slope.
A steel beam is suspended completely under water by a cable that is attached to one end of the beam, so it hangs perpendicularly. Another identical beam is also suspended completely under water, but by a cable that is attached to the center of the be..
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