Conversion
Change 987,000,000,000 to scientific notation.
9.87xx10^11
(4xx10^18)+(2.06xx10^17)
4.206xx10^18
(3.05xx10^26)-(6.87xx10^24)
2.9813xx10^26
(1.6xx10^6)(2.5xx10^8)
4xx10^14
(1.302xx10^6)/(6.2xx10^15)
2.1xx10^-10
The speed of light is
3xx10^5
. It takes sunlight 6 minutes to reach Venus. How far away is the sun from the Venus in kilometers?
1.08xx10^8 km
Change 0.00 000 000 000 000 412 to scientific notation.
4.12xx10^-15
(8.2xx10^37)+(4.26xx10^38)
5.08xx10^38
(3.13xx10^-15)-(2.7xx10^-16)
2.86xx10^-15
(7.5xx10^-4)(2.8xx10^10)
2.1xx10^7
(3.63xx10^-4)/(1.1xx10^10)
3.3xx10^-14
A speck of dust in an electron microscope is 64 millimeters wide. Its image is
8 ×10^4
times the actual size. How many millimeters wide is the actual speck of dust?
8xx10^-4 mm
Change the following to standard form.
6.623xx10^8
662,300,000
(5.46xx10^-21)+(7.29xx10^-23)
5.5329xx10^-21
(1.1xx10^-18)-(9.72xx10^-19)
1.28xx10^-19
(6xx10^18)(8.9xx10^-22)
5.34xx10^-3
(5.775xx10^5)/(7.5xx10^-5)
7.7xx10^9
A missile can fly at a speed of Mach 25, or twenty-five times the speed of sound. The speed of sound is approximately
1.234 × 10^3
kilometers per hour. What is Mach 25 in kilometers per hour? Write your answer in scientific notation.
3.085xx10^4 kph
Change to the following number to standard form:
6.42xx10^-9
0.00 000 000 642
(8.84xx10^-29)+(9.04xx10^-27)
9.1284xx10^-27
(8xx10^-7)(6.25xx10^-13)
5xx10^-19
(5.6xx10^-15)/(7xx10^-5)
8xx10^-11
The half-life of bismuth is about
1.904 × 10^19
years. The half-life of thorium is about
1.4 × 10^10
years. How many times as great is the half-life of bismuth than the half-life of thorium?
1.36xx10^9
((8.4xx10^17)(7.6xx10^-15))/((7xx10^-25)(1.2xx10^23))
7.6xx10^4
Jupiter’s mass of about
1.938 × 10^27
kilograms. Saturn’s mass is about
5.7 × 10^26
kilograms. How many more kilograms is Jupiter than Saturn? How many kilograms are they together?
1.368xx10^27 kg
2.508xx10^27 kg