5. Four directions at point Y are indicated as I, II,
III, and IV in the figure above. Directions I and III
are vertical, II and IV are horizontal, and I is
directed along the string. Which of the following
best indicates the direction of the acceleration of
the sphere at point Y?
Answers: 2
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What is the earliest point in the universe that we can observe? why can’t we see back further than this?
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What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration
Answers: 1
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Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums
Answers: 2
Physics, 22.06.2019 20:50
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
5. Four directions at point Y are indicated as I, II,
III, and IV in the figure above. Directions I...
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