Physics, 30.11.2020 21:40 elevupnext1100
Which best describes a metal such as Silver (Ag)?
Group of answer choices
Brittle, a good conductor, and ductile.
Lustrous, malleable, and forms cations.
Dull, highly reactive, and a semiconductor.
Low melting point, forms anions, good insulator.
Answers: 1
Physics, 22.06.2019 06:00
Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = β 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)
Answers: 2
Physics, 22.06.2019 12:10
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free β body force diagram showing the forces acting on the block. (b) write down all relevant newtonβs equations for a given situation.
Answers: 1
Physics, 22.06.2019 16:50
Aresistor with an unknown resistance is connected in parallel to a 9 Ο resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of Ο.
Answers: 3
Physics, 22.06.2019 22:50
The chart shows danielaβs run through her race. what is her velocity? 1.5 m/s 2 m/s 2.5 m/s 5 m/s
Answers: 1
Which best describes a metal such as Silver (Ag)?
Group of answer choices
Brittle, a go...
Brittle, a go...
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