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It's nighttime, and you've dropped your goggles into a 2.8m deep swimming pool. If you hold a laser pointer 0.90m above the edge of the pool, you can illuminate the goggles if the laser beam enters the water 1.9m from the edge.
How far are the goggles from the edge of the pool?
An observer in frame S standing at the origin observes two flashes of colored light separated spatially by ?x = 2980 m, Find the magnitude and direction of v.
Write at least one paragraph in which you define diffraction and interference, discuss Huygens' Principle and explain why light passing through a narrow slit
An engineer is designing a runway for a new airport. Of the planes which will use the airport, the lowest acceleration rate will be 3 m/s2. Assuming the minimum acceleration, what is the minimum allowed length for the runway
The wing of an airplane has an average cross-sectional area of 13 m2 and experiences a lift force of 84,000 N. What is the average difference in the air pressure
An iron bolt of mass 79.0 g hangs from a string 32.4 cm long. The top end of the string is fixed, Find the tension in the string and Find the magnetic force on the bolt
The ball rebounds straight upward to a height of 0.700 m. Illustrate what are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor?
From what height did the student fall? Assume that the only force acting on him throughout the collision is that as a result of the ground.
At one instant a bicyclist is 75m due east of a park's flagpole, going due south with a speed of 13.0 m/s. Then, 10s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 20.0 m/s.
You are an engineer in charge of designing a new generation of elevators for a prospective upgrade to the empire state building. Before the state legislature votes on funding for the project.
An ideal monatomic gas expands adiabatically from an initial temperature of 368 K and volume of 4.6 m3 to a final volume of 11 m3. If the initial pressure is 1.5 multiplied by Patm, how much work is completed on the gas.
The speed of sound in bone is 3500 m/s. How much time does it take the echo of a sound wave to travel from the back of the bone to the front of the bone if the bone is 2.50 cm thick.
Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. The electric field at a point , which is 0.50 m from the center of the sphere, is 15,000 N/C and is directed radially outward. What is the maximum magnitude o..
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