To collect quantitative data, scientists use all of the following except

1 answer:

8 0

"Quantitative" means "expressed in numbers". Quantitative data is information you collect by using measuring tools, and measuring things.

You can get it using rulers, scales, and stopwatches, but not by using descriptive categories.

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The fact that there are seasons on the earth is largely due to

Andrews [41]

The main reason Earth have Seasons it's because of the Earth tilt. One side would be tilted to the sun which causes summer and the other side would be tilted away whitch causes Winter.

The S side of Earth for example is face to the sun which is summer

The N side of Earth of pointed away which is winter.

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3 0

3 years ago

A bicycle rider travels 50.0 km in 2.5 hours. Determine the cyclists average speed.

k0ka [10]

There are several information's already given in the question. Based on those information's the answer can be easily deduced.

Distance traveled by the bicycle rider = 50 km
Time taken to travel the distance = 2.5 hours
So
In 2.5 hours the bicycle rider travels = 50 km
Then
In 1 hour the bicycle rider travels = 50/2.5
= 20 km
Then the average speed of the cyclist is 20 km per hour.

3 0

3 years ago

How much energy is needed to heat and melt 3.0 kg of copper initially at 83°C?

Ne4ueva [31]

As we know that in order to melt the copper we need to take the temperature of copper to its melting point

So here heat required to raise the temperature of copper is given as

$Q = ms\Delta T$