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2 years ago

5

Radio waves, which travel at the speed of light, are used to communicate with satellites in space. If a message from flight cont

rol requires 170 seconds to reach a satellite, how far, in kilometers, is the satellite from Earth?

1 answer:

Burka [1]2 years ago

7 0

Answer:

Is this on edgenuity or some type of virtual school Lmk and then i could help !

Explanation:

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If you have a voltage of 120 volts entering your house and a light bulb with 0.625 amperes flowing through it, how many watts is

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75 watts

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2 years ago

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If a solution has a pOH of 8.71, what is the [H+]?

TEA [102]

Answer: $5.1\times 10^{-6}M$

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

$pH=-\log [H^+]$

$pH+pOH=14$

Putting in the values:

$pH=14-8.71=5.29$

$5.29=-log[H^+]$

$[H^+]=5.1\times 10^{-6}$

Thus $[H^+]$ is $5.1\times 10^{-6}M$

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3 years ago

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the two stages that take place during distillation are. a.evaporation is folloeed by condensation. b.condensation followed by ev

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evapiration followed by condensation

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2 years ago

Which statement best describes alpha decay?(1 point)

Veseljchak [2.6K]

Answer:

After the ejection of an alpha particle, the remaining nucleus has a mass number that is four less and an atomic number that is two less, so alpha decay is a type of nuclear fission.

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