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Spaceships of the future may be powered by ion-propulsion engines in which ions are ejected from the back of the ship to drive it forward. In one such engine the ions are to be ejected with a speed of 0.88c relative to the spaceship. The spaceship is traveling away from the earth at a speed of 0.71c relative to the earth. What is the velocity of the ions relative to the earth? Assume that the direction in which the spaceship is traveling is the positive direction, and be sure to assign the correct plus or minus signs to the velocities.
In a 30.0 s interval, 540 hailstones strike a glass window of area 0.600 m2 at an angle of 45.0° to the window surface. Find the pressure on the window
In a photoelectric effect experiment, visible radiation is incident upon a metal of work function 1.05 eV. What is the wavelength of the incident radiation
Water is pumped into a storage tank from a well delivering 19.0 gallons of water in 26.0 seconds through a pipe of 1.00 in.2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well?
Standing at a crosswalk, you hear a frequency of 500 Hz from a siren of an approaching ambulance. Determine the ambulance's speed from these observations
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). What is the distance between the first-order red and blue fringes? (d=)
Three equal point charges, each with charge 1.35 mu C, are located at the vertices of an equilateral triangle whose sides are of length 0.60m. What is an electric potential energy U of the system? (Take as zero the potential energy of the three ch..
Two particles, with charges of q1 = 60.0nC and q2 = 60.0nC, are placed at the points with coordinates (0, 12.00 cm) and (0, 12.00 cm). A particle with charge q3 = 30.0 nC is located at the origin.(a) Find the electric potential energy of the confi..
A bucket filled with water exerting a force of 529N is hanging from a rope that is wound around a 0.05 m radius stationary cylinder. If cylinder does not rotate and the bucket hangs straight down, what is the magnitude of torque the bucket produce..
Create a graph of x-position, x-velocity, and x-acceleration versus time and a graph of y-position, y-velocity, and y-acceleration versus time.
A square loop 15.0cm on a side has a resistance of 8.05? . It is initially in a 0.395T magnetic field, Calculate the electric energy dissipated in this process
A 3.65 uf capacitor, a 9.25 uf capacitor, and a 6 V battery are connected in parallel to make a complete circuit. what is the voltage of each capacitor
One member of a pair of parallel conducting plates has potential 17 V. An electron is ejected from that plate at potential, What is the potential of the second plate
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