Physics, 25.09.2019 16:30 maddihamidou
Abackpack has a mass of 8 kg. it is lifted and given 54.9 j of gravitational potential energy. how high is is lifted? acceleration due to gravity is g=9.8 m/s^2.
Answers: 1
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Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
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What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?
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A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.
Answers: 1
Abackpack has a mass of 8 kg. it is lifted and given 54.9 j of gravitational potential energy. how h...
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