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Consider a ball with initial velocity v0 that has magnitude 20.0 m/s and is directed 37.0 degrees above the positive x axis. (a) Find its velocity when its x is x=5.0m. (b) What's the maximum height of the ball.
A force of 45 N acts on a ball for 0.2 sec If the ball is initially at rest, What is the final momentum of the ball
submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of 20 degree above the horizontal and the echo took 3.04s to get back to the submarine What is the object's depth?
Your starship, the Aimless Wanderer, lands on the mysterious planet Mongo. how many hours will it take the ship to complete one orbit
a photocell that detects the amount of light transmitted through the finger at each wavelength. Identify the frequency of each of these light sources. If 66% of the energy of the red source is absorbed in the blood, by what factor does the amplitu..
Two parallel plates, each of area 7.00 cm^2, are seperated by 3.50 mm of water, What is the magnitude of the potential difference between the plates
From the average separation among air molecules at STP, and their mean speed, estimate how long it would take one molecule to move into the region occupied with another. Suppose that air consists mostly of nitrogen molecules.
An ambulance with its siren at frequency 700 Hz is racing down the highway at 50m/s, What is the wavelength of sound in front of the ambulance
The graph shows the net external force component Fcos along the displacement as a function ofthe magnitude s of the displacement. The graph applies toa 59.4-kg ice skater.
As you stand near a railroad track, a train passes by at a speed of 31.7 m/s while sounding its horn at a frequency of 213 Hz. What frequency do you hear as the train approaches you and what frequency while it recedes? Take the speed of sound in a..
Strictly speaking, as more and more skyscrapers are being built on surface of earth, does the day tend to become longer or shorter.
a 12oz can of coke contains 39 grams of sugar. you pour 5oz of coke into a glass. give an interpretation if there is
concrete has a higher specific heat than soil does. use this fact to explain partially why cities have a higher average
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