2 years ago

In the properties of matter case study lab how did the criminals make the coins look gold

Physics

1 answer:

Nostrana [21]2 years ago

3 0

Answer: Most likely A

Explanation:

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Draw two unique free body diagrams that each show a net force of 30 N to the left.

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Answer:

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3 years ago

The power of a purely resistive lead is always positive although the current and voltage are sometimes negative. explain

pickupchik [31]

Answer:

Current is in phase with voltage in a resistive circuit. Note that the wave form for power is always positive, never negative for this resistive circuit. This means that power is always being dissipated by the resistive load, and never returned to the source as it is with reactive loads.Explanation:

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2 years ago

A car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 Hz. After the car goes by, you hear

Talja [164]

Answer:

70.07 Hz

Explanation:

Since the sound is moving away from the observer then

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