What is the magnitude of the resultant velocity
A motorboat heads due east 13.3 m/s across a river that flows toward the south at a speed of 4.5m/s. What is the magnitude of the resultant velocity relative to an observer on the shore?
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Find the following when the current in the solenoid increases to 5.0 A in a period of 0.90 s. the change in the magnetic flux through the coil.
Investigators at the scene of an automobile accident where the driver drove off a 20.0 m high cliff determine that the auto was traveling at a speed of approximately 30 m/s upon impact with the groung. How fast must the car have been moving before
A solution, which was made by dissolving 62.07 g of a nonelectrolyte in 500 g of water, exhibits a freezing point of -1.86 °C. What is the molecular weight of this nonelectrolyte compound? For water, Kf is 1.86 °C m-1 and Kb is 0.51 °C
What were the underlying causes of the depression? Why did the Great Depression of the 1930s seem so much worse than any occurring either before or since?
What is the amplitude of the temperature fluctuations produced by a sound of intensity, 10 W/m^2, in air at 20 degrees C and std atmospheric pressure?
How does the unconditioned response differ from the conditioned response? Describe a research scenario, and give an example of each (an unconditioned response, and a conditioned response).
A 3.40 kg steel ball strikes a wall with a speed of 9.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall
A planet with mass 5.98 × 1024 kg orbits a star with mass 1.99 × 1030 kg. Determine the kinetic and potential energy at the aphelion.
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