How long would it take for a sound impulse to travel through a copper rod 2.0 km long?_____ s
0.057
0.57
1.75
17.5

Answers

Answer 1

Answer: At standard temperature, shear force propagation occurs at 3570 meters per second. Thus for a copper rod (assumed at ST) measuring 2 km, an impulse would cross its length in 2/3.57 = .56022409 seconds— thus approximately .57 seconds.

Answer 2

Answer: it would take roughly half a second so base that off your answers and you could get the right answer

hope that helped

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Can someone please help me answer 14 and 15??

Answers

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15.
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Calculate the total resistance for a 650ohm , a 350 ohm , and a 1000 ohm resistor connected in series

Answers

Answer:

2000 ohms

Explanation:

Resisters in series just add.

Rt = R1 + R2 + R3

R1 = 650 ohm

R2 = 350 ohm

R3 = 1000 ohm

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Rt = 2000 ohms.

The total effective resistance of several resistors in SERIES is just the sum of all the individual resistances.

So the effective resistance of 650Ω, 350Ω, and 1,000Ω in series is

Sum = (650Ω + 350Ω + 1,000Ω)

Sum = 2,000 ohms

In terms of newton first law of motion why is it important to wear a seat belt

Answers

Answer:

Seatbelts stop you

Explanation:

Any passengers in the car will also be decelerated to rest if they are strapped to the car by seat belts.

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Answers

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Answers

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