Physics, 06.10.2019 10:02 oofoofoof1
Water flows over a waterfall 100m in height. consider 1kg of the water, and assume that no energy is exchanged between this 1kg and its surroundings. a. what is the potential energy of the water at the top of the waterfall relative to its base? b. what is the kinetic energy of the water just before it strikes the bottom? c. after 1kg of water enters the river below the falls, what change as occurred in its state? d. plot all pertinent properties (ke, .)
Answers: 3
Physics, 23.06.2019 07:10
50.)the diagram below represents the wave fronts produced by a point source moving to the right in a uniformmedium. observers are located at points a and b.compared to the wave frequency and wavelength observed at point a, the wave observed at point b has a(1) higher frequency and a shorter wavelength(2) higher frequency and a longer wavelength(3) lower frequency and a shorter wavelength(4) lower frequency and a longer wavelength
Answers: 3
Physics, 23.06.2019 11:00
An astronaut on the moon throws a baseball upward. the asatronaut is 6ft, 6in. tall, and the initial velocity of the ball is 30ft per second. the heigh s of the ball in feet is given by the equation s = -2.7^2 + 30t + 6.5, where t is the number of seconds after the ball was thrown. after how many seconds is the ball 16ft above the moon's surface?
Answers: 2
Physics, 23.06.2019 11:30
In a house all the electrical wires run back to either a bank or a blank
Answers: 1
Physics, 23.06.2019 11:30
A: all waves on the electromagnetic spectrum travel at the same speed in a vacuum. the speed of these waves in a vacuum is 3x108 m/s. as the wavelength of a wave doubles, how does the speed and frequency of the wave change?
Answers: 1
Water flows over a waterfall 100m in height. consider 1kg of the water, and assume that no energy is...
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