3 years ago

An electromagnetic wave has a frequency of 5.0 x 1014 Hz. What is the

Physics

1 answer:

andrezito [222]3 years ago

5 0

Answer:

Explanation:

wavelength = speed of light/ frequency

= (3x 10^8 m/s)/(5.0 x 10^14 Hz)

= 6.0 x 10^-7 m

You might be interested in

If a car travels 600m west in 25 seconds, what is its velocity?

Elena L [17]

$v = \frac{ \:the covered distance}{time} \\$

$v = \frac{600}{25} = \frac{6 \times 100}{25} = 6 \times 4 = 24 \: \\$

$v = 24 \: \frac{m}{s} \\$

_________________________________

If west means the west of the axis x the velocity equal :

$- 24 \: \frac{m}{s} \\$

4 0

3 years ago

In non-ferromagnetic materials, most of the electrons are _____.

OleMash [197]

It hink that it is the 2nd one

7 0

3 years ago

Read 2 more answers

________ states that the number of transistors per square inch on an integrated chip doubles every 18 months.

Andrew [12]

Answer:

Moore's Law

Explanation:

5 0

3 years ago

The total consumption of electrical energy in the United States is about 1.0 1019 joules per year.

dexar [7]

Answer:

a) 316880878140.2895 Joules

b) 1056.26 Joules

c) 372.80103310622 km²

Explanation:

Energy consumption

$E=\frac{P}{t}\\\Rightarrow E=\frac{1\times 10^{19}}{365.25\times 24\times 60\times 60}\\\Rightarrow E=316880878140.2895\ W$

Average rate of electrical energy consumption is 316880878140.2895 Joules

Total population = 300 million

$E=\frac{316880878140.2895}{300\times 10^6}\\\Rightarrow E=1056.26\ J$

Each person consumes 1056.26 Joules.

Efficiency = 0.85

Power from Sun

$0.85\times 1000=850\ W/m^2$

Area

$\frac{316880878140.2895}{850}=372801033.10622\ m^2$

Converting to km²

$372801033.10622=\frac{372801033.10622}{1000\times 1000}=372.80103310622\ km^2$

Area required to collect the electrical energy used in the United States is 372.80103310622 km²

4 0

3 years ago

Read 2 more answers

True or False - Usain Bolt has perfect running technique when sprinting in the 100 M.

koban [17]

True it was a perfect running technique

6 0

3 years ago

Read 2 more answers