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Questions in physics
[Homework Help] How does increasing the distance between charged objects affect the electric force between them? A. The electric force increases because the distance has an indirect relationship to the force. B. The electric force increases because the distance has a direct relationship to the force. C. The electric force decreases because the distance has an indirect relationship to the force. D. The electric force decreases because the distance has a direct relationship to the force.
[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
[Homework Help] Select the correct answer. A forklift raises a crate weighing $8.35 \times 10^2$ newtons to a height of 6.0 meters. What amount of work does the forklift do? A. $2.5 \times 10^3$ joules B. $5.0 \times 10^3$ joules C. $2.4 \times 10^4$ joules D. $4.9 \times 10^4$ joules
[Homework Help] ...... are used for extinguishing electric equipment fires. A. Carbon dioxide B. Dry chemical powder C. Clean gases D. All of the above
[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
[Homework Help] Describe how magnetic force on a charge differs from electrostatic force on a charge. Provide an example that illustrates the differences.
[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
[Homework Help] What is the specific latent heat of fusion of ice if it takes 863 kJ to convert 4.6 kg of ice into water at 0 C? A. $0 J kg -1$ B. $1.87 \times 10^{\wedge} 5 J kg -1$ C. $3969.80 J kg -1$ D. $187.61 J kg -1$
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