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3 years ago

List in order which digits are significant in the following numbers:

Chemistry

1 answer:

ozzi3 years ago

5 0

Answer: see below

Explanation:

Zeros between the digit and decimal point are NOT significant.

Zeros between digits ARE significant.

a. 230 mL. sf: 23

b. 0.00540 s sf: 540

c. 1440 sf: 144

d. 50 ℃ sf: 5

e. 0.9405 g/cm3 sf: 9405

f. 700 jellybeans sf: 7

g. 1.05 x 10⁶ sf: 105

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Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is MHz. [speed of light

Volgvan

Answer:

50 MHz

Explanation:

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength$

c is the speed of light having value $3\times 10^8\ m/s$

Given, Wavelength = 6 m

Thus, Frequency is:

$Frequency=\frac{c}{Wavelength}$

$Frequency=\frac{3\times 10^8}{6}\ Hz$

$Frequency=50\times 10^{6}\ Hz$

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Also, 1 Hz = $10^{-6}$ MHz

So, Frequency = 50 MHz.

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39=6.02x19^23

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