Physics, 05.05.2020 02:19 amberreid028
Sound waves travel at the rate of 343 m/s at 20°C. If a man standing 450 meters away from the wall of a canyon yells, “Hello,” how long will it take for him to hear his own voice echo off of the wall?
Answers: 1
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How would doubling the made of an object change the objects potential energy
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What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
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Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point
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The second largest public utility in the nation is the sole provider of electricity in 32 counties of southern florida. to meet the monthly demand for electricity in these counties, which is given by the inverse demand function p = 1,200 – 4q, the utility company has set up two electric generating facilities: q1 kilowatts are produced at facility 1, and q2 kilowatts are produced at facility 2 (so q = q1 + q2). the costs of producing electricity at each facility are given by c1(q1) = 8,000 + 6q12 and c2(q2) = 6,000 + 3q22, respectively. determine the profit-maximizing amounts of electricity to produce at the two facilities, the optimal price, and the utility company’s profit
Answers: 3
Sound waves travel at the rate of 343 m/s at 20°C. If a man standing 450 meters away from the wall o...
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