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A ball is projected horizontally at 3m/s from a table and lands 120 cm away from the base of the table. What is the height of the table?
two train whistles a and b each have a frequency of 392 hz. a is stationary and b is moving toward the right away rom a
Give a definition of "laissez faire" economics. (An economic doctrine that opposes government regulation of or interference in commerce.) Explain why do you think this was the dominant political and legal view in the 1800s and early 1900s?
Two identical light bulbs are connected in parallel to a different source, one with E=9.0V and internal resistance 0.9 ohms. Find potential difference across each bulb
A dog on a merry-go-round undergoes a 1.2 m/s2 linearacceleration. If the merry-go-round's angular acceleration is .63rad/s2, how far is the dog from the axis of rotation?
A diver springs upward from a board that is three meters abovewater. At an instant he contacts the water his speed is 9.20 m/sand his body makes an angle of 78.0o with respect to the horizontalsurface of the water.
A 1.00-cm-high object is placed 4.70 cm to the left of a converging lens of focal length 7.60 cm. Find the position and height of the final image
A 'clicker' is sounding at 12 Hz. If you are moving towards the 'clicker' at 29 m/sec, what frequency do you hear instead
Positively charged aluminum ion, Al3+, has a mass of 4:50 1026 kg. After being accelerated through a potential dierence of 650 V, Calculate the radius of the path of the ion in the eld
A ball is thrown vertically upward with a speed of 25.7 m/s. The acceleration due to gravity is 9.8 m/s2. How high does it rise
The ball has a mass of 30 kg and a speed v=4m/s at the instant it is at its lowest point, 0 degrees.. Determine the tension in the cord at the instant = 25. Neglect the size of the ball. Determine the rate at which the ball's speed is decreasing at t..
Two identical diverging lenses are separated by 15 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right
A thin layer of ice floats on the surface of water in a bucket. A ray of light from the bottom of the bucket travels upward through the water. What is this angle after the ice melts
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