Express the following quantities in scientific notation:
700m __________
0.00054kg _______
4500000m _________
How many seconds are in 6.5 hours?(show T-chart)
To express quantities in scientific notation, we need to represent the number in the form of `a x 10^b` where `a` is a number between 1 and 10, and `b` is an exponent that tells us how many times we need to multiply `a` by 10. Let's solve the given examples:
1. 700 meters:
To express 700 meters in scientific notation, we need to move the decimal point to the left until there is only one digit to the left. In this case, we can write it as 7.00 meters. Then, to bring it back to its original value, we multiply it by 10 three times, as we moved the decimal point three places. So, we have 7.00 x 10^3 meters.
2. 0.00054 kilograms:
To express 0.00054 kilograms in scientific notation, we need to move the decimal point to the right until there is only one digit to the left. In this case, we can write it as 5.4 kilograms. Then, to bring it back to its original value, we multiply it by 10 four times, as we moved the decimal point four places. So, we have 5.4 x 10^-4 kilograms.
3. 4,500,000 meters:
To express 4,500,000 meters in scientific notation, we need to move the decimal point to the left until there is only one digit to the left. In this case, we can write it as 4.5 meters. Then, to bring it back to its original value, we multiply it by 10 six times, as we moved the decimal point six places. So, we have 4.5 x 10^6 meters.
Now, let's move on to the second part of your question:
To find out how many seconds are in 6.5 hours, we can set up a T-chart to compare the conversion factors between hours and seconds:
| Hours | Seconds |
|-------|---------|
| 1 | 3600 |
To convert from hours to seconds, we can multiply the given value by the conversion factor:
6.5 hours * 3600 seconds = 23400 seconds.
Therefore, there are 23,400 seconds in 6.5 hours.
To express numbers in scientific notation, place the decimal point after the first digit, then add 10x as appropriate (or as E notation)
700 m = 7.00 x 102 m or 7.00E2 m.
0.00054 kg = 5.4E-4 kg
thanks what about how many seconds in 6.5 hrs
I have no idea what a T chart is.
But you know there are 60 min in an hour and 60 sec in a minute. That's all you need to convert.