Physics, 01.03.2021 20:00 melanie7152
Two objects are electrically charged. The net charge on one object is doubled.
Therefore, the electric force .
reverses
doubles
quadruples
divides
Answers: 2
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Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg
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Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
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When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
Answers: 2
Two objects are electrically charged. The net charge on one object is doubled.
Therefore, the elect...
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