Physics, 21.06.2021 14:00 tnbankspines
17.a. Explain the fundamental forces of nature.
b. A SONAR (sound navigation and ranging) used ultrasonic waves to detect and locate objects
underwater. In a submarine equipped with a SONAR, the time delay between the generation of a probe wave
and the reception of its echo after reflection from an enemy submarine is found to be 77.0 s. What is the
distance of the enemy submarine? (Speed of sound in water = 1450 m s-1)
( urgently need this answer)
Answers: 3
Physics, 21.06.2019 18:00
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The energy released by a nuclear fusion reaction is produced when
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Physics, 22.06.2019 15:50
Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?
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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
17.a. Explain the fundamental forces of nature.
b. A SONAR (sound navigation and ranging) used ultr...
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