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When you place a saltshaker 30 cm from your magnifying glass, a real image forms 30 cm from the lens on the opposite side. You can see this image dimly on a sheet of paper. What is the focal length of the magnifying glass.
A 9-g bullet is fired from a rifle. It takes 3.30 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
A race car is moving with a velocity of 144 kilometers/hour. The driver applies the brakes, and the car comes to a halt in 12.0 seconds. What is the acceleration of the car after 12.0 seconds? A. -12 m/s^2 B. -3.3 m/s^2 C. 3.3 m/s^2 D. 10.3 m/s^2
A 12.6 V battery is in a circuit with a 30.0 mH inductor and a 0.150 resistor, as in Active Figure 20.27. The switch is closed at t = 0. Find the current after one time constant has elapsed
Due to a tune-up, the efficiency of an automobile engine increases by 3.50 %. For an input heat of 1260 J, how much more work does the engine produce
Two lenses that are L = 40 cm apart are used to form an image, as shown in figure. Lens 1 is converging and has a focal length f1 = 14 cm; lWhat is the magnification of this image
A 2.0kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 360m/s, find the speed of the block immediately after the bullet exits
Jack and Jill are on two different floors of their high rise office building and looking out of their respective windows. What is the height between the two window ledges
A satellite is in circular orbit around the Earth at a distance of 7.14RE with a speed of 2.96 km/s. With what speed would the satellite hit the Earth's surface
A ball of mass 522 g starts at rest and slides down a frictionless track. It leaves the track horizontally, striking the ground a distance x = 0.91 m from the end of the track after falling a vertical distance h2 (bottom of ramp)= 1.03 m from the ..
question1asteroids can be classified into two broad groups based on their composition and location carbon-rich
A 12.0 kg bucket of water of is suspended by a rope wrapped around a windlass, which is a solid cylinder 0.300 m in diameter with mass 17.0 kg. What is the time of fall
Suppose a muon produced as a result of a cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. What distance is this in the muon's frame
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