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Taya2010 [7]
3 years ago
6

Which of the following is an example of velocity? Question 15 options: A plane travelling south towards the Bahamas. A man runni

ng 7 miles per hour west. A car sitting at a stop sign? A dog running at 5 miles per hour.
Chemistry
2 answers:
Rasek [7]3 years ago
7 0

Answer: A man running 7 miles per hour west.

Explanation: Vector quantity is a quantity which has both magnitude and direction.

Scalar quantity is a quantity which has only magnitude.

Velocity is a vector quantity which expresses the speed of the body along with the direction in which it is moving.

v=\frac{distance}{time}=\frac{miles}{hour}

Thus the correct option is A man running 7 miles per hour west.  

ad-work [718]3 years ago
6 0

Answer is: A man running 7 miles per hour west.

Velocity is equivalent to a specification of its speed and direction of motion, for example 100 km/h to the east.

Velocity is a physical vector quantity (measured in metres per second) and need magnitude and direction to define it, for example 100 metres per second east.

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The prefix ‘kilo-‘ means a thousand.
Blababa [14]

Answer:

0.97 kg, 1.0kg

Explanation:

As you have mentioned in the question, to convert kilo-gram to grams, this conversion is used, 1 kilogram = 1,000 grams

Initially, when one has to convert from one unit to another, there is a lot of confusion. To avoid any such, multiply and divide the number with units to which it has to be converted.

Here,

970 g = 970 g \times\frac{1 kg}{1 kg}

This makes no difference to the number.

970 g =  970 g \times\frac{1 kg}{1000 g}

As, 1 kg= 1,000 g

970 g =  \frac{970}{1000} kg

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Rounding this off to the nearest tenth of a kilogram.

The tenths place is immediately to the right of the decimal point.

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8 0
2 years ago
If a piece of metal has a density of 9.865 g and a volume of 14 ml, what is its mass?
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I think the answer is 138.11 gram

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