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Ugo [173]
3 years ago
7

A police car drives with a constant speed of 58 miles per how long will it take to travel a distance of 29 miles

Chemistry
1 answer:
astra-53 [7]3 years ago
5 0

Answer:

It takes 2 hours for a police car to travel a distance of 29 miles with 58 miles per hour.

Explanation:

The speed of the car is 58 miles per hour.

The total distance traveled is 29 miles.

We need to find the time taken to cover the distance of 29 miles by the police car if police traveled at 58 miles per hour.

We know that,

Relationship between speed, time and distance is speed=\frac{distance}{time}

Now substitute the given values in the above formula,

58=\frac{29}{time}

time=\frac{29}{58}

Time = 2 hours.

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Correct answer: "A. Energy from an outside source is continuously being added."
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A 0.200 g sample of unknown metal x is dropped into hydrochloride acid and realeases 80.3 mL of hydrogen gas at STP using ideal
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Answer:

The number of mole of the unknown metal is 3.58×10¯³ mole

Explanation:

We'll begin by calculating the number of mole hydrogen gas, H2 that will occupy 80.3 mL at stp.

This is illustrated below:

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1 mole of any occupy 22.4L or 22400 mL at stp.

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1 mole of the unknown metal reacted to produce 1 mole of H2.

Therefore, 3.58×10¯³ mole of the unknown metal will also react to produce 3.58×10¯³ mole of H2.

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