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A Porsche 914 accelerates uniformly from 0 to 60 mph in5 s. Assuming a frictionless air track and a glider mass of 550 g, find the mass M2 that one must hang from the glider in order to obtain acceleration equal to that of the Porsche. Compare the estimated acceleration of the Porsche with the acceleration from V-2.
The size of a slide is 35 mm X 35 mm. Its image is formed on the screen 4.0 m from the lens of the projector. The focal length of the lens in the projector is 10 cm. Discover the object distance of the slide. Discover the size of the image on the scr..
A supersonic jet passes directly overhead at an altitude of 11,585 m, traveling at 680 m/s, or mach 2. How much time elapses before you hear the sonic boom
A snowboarder starts from rest and rides 39.47 m down a snow-covered slope that makes an angle of 33.19° with the horizontal, How far will she travel along the flat snow
tarzan who weighs 820 n swings from a cliff at the end of a 20.0 m vine that hangs from a high tree limb and initially
The chemical energy releasedby burning a gallon of gasoline is approximately1.3x10^5KJ.estimatethe total energy used by all of the cars in the US during thecourse of one year. what fraction does this represent of the totalenergy by the US in one y..
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 65.3°. Find the dispersion of the slab
On the planet Newtonia, a sample pendulum having a bob with mass 1.25 kg and a length of 185.0 cm takes 1.42 s, What is the mass of the planet Newtonia
A point particle travels in a straight line at constant speed, and the closest distance it comes to the origin of coordinates is a distance L. By respect to this origin, does the particle have a nonzero angular momentum? As the particle moves along i..
the brakes of a truck cause it to slow down by applying a retarding force of 3.40 x 103 n to the truck over a distance
A stream of singly ionized gold atoms pouring from a small oven impinges on a metal target. The target is attatched to the positive terminal of a 12V battery and oven is attatched to the negative terminal. How much kinetic energy do the ions pick up ..
a pump in a boat pumps 6 ft3s of water through a submerged water passage which has an area of 0.25 ft2 at the bow of
What approximations or simplifying assumptions must you make in the calculations? (Note: Some of these choices are false because they are wrong physics!)
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