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A hiker walks along the city streets 6 km north, then 4 km east. What is the magnitude of the resulting displacement vector?
Round response to nearest whole km, answer in units of km.
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor, How tall is the tower
A 5.4-µC point charge is located at x = 0.9 m, y = 3.2 m, and a -3.9-µC point charge is located at x = 1.9 m, y = -2.3 m. (a) Find the magnitude and direction of the electric field at x = -3.2 m, y = 1.1 m.
The wave function of a standing wave is y(x, t) = 4.44 mm sin [(32.5 rad/m) x] sin [(754rad/s) t]. For the two traveling waves that make up this standing wave
An ideal gas is taken through a quasi-static process described by P = alphaV2, How much work is done on the expanding gas in this process
A batter hits a baseball straight upward at home plate and the ball is caught by the catcher 5.0 s after it is struck. What is the speed of the ball when it is caught
A pipe with a diameter of 2.88 cm is carrying 134 liters/minute of water with an overpressure (gauge pressure) of 3.65 atmospheres. Find the overpressure of the water in the pipe at the top of the building
question1the rhinestones in costume jewellery are glass with index of refraction 1.50. to compose them more reflective
A toy rocket, of mass 60 g, achieves a velocity of 80 m/s after3.0 s when fired straight up. What average force does the rocketengine exert?
Find the minimum magnitude of the acceleration amin of the car. Express your answer in meters per second per second to the nearest integer.
Take temperatures and efficiencies to be exact. A steam engine has a thermal efficiency of 15.0%. How much heat is lost to the surroundings in each cycle
solve this problem using either tabulated values from the tables or constant specific heats. Calculate the temperature of the exit stream
A 1.7m -long barbell has a 21kg weight on its left end and a 32kg weight on its right end. What is the torque due to gravity about the left end of the bar
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