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Explain why a charged comb can attract small, neutral pieces of paper.

A charged comb attracts neutral paper through electrostatic induction, where the charge on the comb causes temporary charge separation in the paper. Step-by-Step Solution: When the negatively charged comb approaches, it repels electrons in the paper This creates a temporary positive charge on the near side of the p 

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Answered by: maxim p
1K views

Calculate the current flowing through a 10-ohm resistor connected to a 20-volt power supply using Ohm's Law.

The current flowing through the 10Ω resistor is 2 amperes (A). Step-by-Step Solution: Recall Ohm's Law: V = IR (where V=voltage, I=current, R=resistance) Rearrange formula to find current: I = V/R Insert values: I = 20V ÷ 10Ω Calculate: I = 2A Verify units match: volts/ohms = amperes ✓ Key Mistake to Avoid: Don 

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Answered by: maxwell b
960 views

What is momentum, and how is it conserved in collisions?

Momentum is the product of mass and velocity (p = mv), measured in kg⋅m/s. In any collision, the total momentum before equals the total momentum after, as long as no external forces act on the system. Step-by-Step Solution: Calculate momentum using p = mv (mass × velocity) For collisions: p₁(before) + p₂(before) =  

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Answered by: maya c
950 views
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