Physics, 26.10.2020 09:10 texas101st78
2. A shopper in a supermarket takes a box of sugar from a shelf that is 1.5 m high because he is
going to bake some muffins. He also needs to get some blueberries. The sugar has a weight of 5N.
What Potential Energy did the sugar have before it was taken from the shelf?
Answers: 2
Physics, 22.06.2019 11:50
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
Answers: 2
Physics, 22.06.2019 15:30
1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?
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Ideal meters problem. what internal resistance is ideal for a voltmeter? what internal resistance is ideal for an ammeter?
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Physics, 23.06.2019 02:30
Aprotein molecule in an electrophoresis gel has a negative charge.the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?
Answers: 3
2. A shopper in a supermarket takes a box of sugar from a shelf that is 1.5 m high because he is
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