3 years ago

What are 5 things that are elastic?

Physics

1 answer:

Alex_Xolod [135]3 years ago

6 0

Rubber band
A belt
bracelet
balloons
headband

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What is the unit for resistance?

AnnyKZ [126]

For electrical resistance, the unit is Ohm. The symbol is capital greek O.

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3 years ago

If s car can drive 40m/s, then how long will it take to travel 2400m?

WINSTONCH [101]

Answer:

60 seconds.

Explanation:

2400 divided by 40 equals 60

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Diamonds are very shiny and tough. Are they metal or non-metal?

Ostrovityanka [42]

Answer:

Non-metal

Explanation:

Diamond is a non metal because diamond is entirely made out of carbon and carbon is a non metal.

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If a 9 V battery with 4 Ω contact resistance is used and the relay has 80 Ω and the wire has 10 Ω/mile, what is the maximum tele

Sedaia [141]

Answer:

Telegraph distance will be 9.6 mile

Explanation:

We have given the voltage V = 9 volt

Contact resistance = 4 ohm

Relay resistance = 80 ohm

And wire has a resistance = 10 ohm/mile

We have given the current = 50 mA =0.05 A

According to ohm's law $R=\frac{V}{I}=\frac{9}{0.05}=180ohm$

So the resistance of wire = 180-4-80=96 ohm

So the length of the telegraph distance will be $\frac{96}{10}=9.6mile$

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3 years ago

A force of 5.00 N to the left causes a 1.35 kg book to have a net acceleration of 0.76 m/s2 to the left. What is the frictional

Nuetrik [128]

Answer:

4.0 N

Explanation:

Sum the forces in the x direction:

∑F = ma

F − Fr = ma

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Fr = 5.00 N − (1.35 kg) (0.76 m/s²)

Fr = 4.0 N

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