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A spacecraft moving away from Earth emits a 4480 Hz signal. A scientist on Earth measures the signal to be 4476 Hz. What is the speed of the spacecraft relative to Earth?
A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 36.00°. Determine the angle between the refracted blue and red rays in the crown glass
When light of wavelength 350 nm is incident on a metalsurface, the stopping potential of the photoelectrons is 0.500 eV. What is the threshold frequency
A 0.621-kg basketball is dropped out of a window that is 5.26 m above the ground. How much work is done on the ball by its weight
A water line with an internal radius of 5.06 x 10-3 m is connected to a shower head that has 12 holes. The speed of the water in the line is 1.18 m/s. What is the volume flow rate in the line
illustrate the refraction of a light ray from a medium of higher speed to a medium of lower speed. label each of the
what speed does boxcar have after 10 seconds.What is the object's displacement Dx.
A mass (M=2kg) is placed in front of a spring with k=900N/m, compressed d=50cm. The spring is released, shooting the mass forward from A to the spring's equilibrium position at B, What is the velocity of the mass at point C
A 2 kg mass is placed at rest against a spring of spring constant 5 N/m, which is compressed by 10 cm from its equilibrium position. find the amount of potential energy stored in the spring
Wishing to move his television set to another room, the owner extends the aerial feeder cable, calculate the size of the signal transmitted across the join to the second cable
After a spacewalk, a 2.33-kg tool is left 58.9 m from the center of gravity of a 40.1-metric ton space station, orbiting along with it. How much closer to the space station will the tool drift
Two 5.5 5.5 metal plates are separated by a 0.21--thick piece of Teflon. compute the maximum potential difference between the disks
An sub with a mass of 1800 kg is traveling eastbound at 17 m/swhile a compact car with mass of 900 kg is traveling westbound witha speed of 15 m/s the cars collide head-on becoming entangled.
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