3 years ago

PLEASE HELP ME!! Use Element and Pure Substance in the same sentence.

Physics

1 answer:

kati45 [8]3 years ago

5 0

Water is an element and a pure substance as it can not be broken down.

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What must the charge (sign and magnitude) of a 1.45-g particle be for it to remain stationary when placed in a downward-directed

tekilochka [14]

Answer:

charge will be equal to $2.03\times 10^{-5}C$

Explanation:

We have given mass of the particle m = 1.45 gram = 0.00145 kg

Acceleration due to gravity $g=9.8m/sec^2$

Electric field E = 700 N/C

Electric force will be equal to $F=qE$ , here q is charge and E is electric field

For particle to be stationary this force must be equal to force due to gravity , that is mg force

So qE = mg

$q=\frac{mg}{E}=\frac{0.00145\times 9.8}{700}=2.03\times 10^{-5}C$

So charge will be equal to $2.03\times 10^{-5}C$

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2 years ago

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Alika [10]

Answer:

Wave A

I hope this helps

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2 years ago

What is the total momentum of a 30 kg object traveling left at 3 m/s and a 50 kg object traveling at 2 m/s to the right?

madam [21]

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there are 25 kg objective travelling at 2m/s to the right.

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1 year ago

Covert 35000000 miles to meters and show how you got the answer?

Lina20 [59]

Answer:

56327040000 metres

Explanation:

1 mile =

1609.344 metres

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x =56327040000 metres

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2 years ago

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Oliga [24]

Efficiency is completing a task as fast a possible the the least amount of effort.

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2 years ago

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