2 years ago

3. J.J. Thomson discovered the electron in 1897. In 1904, he proposed a model

Physics

1 answer:

OLga [1]2 years ago

7 0

Answer:

Maybe this will help?

Explanation:

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Suppose that a particular artillery piece has a range R = 9880 yards . Find its range in miles. Use the facts that 1mile=5280ft

Solnce55 [7]

Answer:

R = 9880 yd * 3 ft/yd / 5280 ft/mi = 5.61 mi

If you do it in steps

R = 9880 yd * 3 ft/yd = 29640 ft

R = 29640 ft / 5280 ft/mi = 5.61 mi

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2 years ago

What will be the ME of a machine that produces a 240 N work with a 300

Elden [556K]

Answer:

Efficiency = 80%

Explanation:

Given the following data;

Work output = 240 N

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$Efficiency = \frac {Out-put \; work}{In-put \; work} * 100$

Substituting into the equation, we have;

$Efficiency = \frac {240}{300} * 100$

$Efficiency = 0.8 * 100$

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Therefore, the mechanical efficiency of the machine is 80 percent.

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There is a repulsive force between two charged objects when ____________ .

xxTIMURxx [149]

There is a repulsive force between two charged objects when they are of like charges/ they are likely charged (like charges repel each other)

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1.What type of sediment forms from minerals that crystallize from seawater?

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The correct answers are as follows:
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2)sand and gravel

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Murljashka [212]

The car is very incredibly fast

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3 years ago