The speed of light 3 × 108 m / s, can be expressed in terms of...

The speed of light 3 × 10⁸ m / s, can be expressed in terms of other fundamental constants relating to electricity and magnetism. Give this algebraic expression and briefly explain where it comes from.

Solutions

Expert Solution

So speed of light can be expressed as one over square root of the product of permittivity of free space and the the permeability of free space.

We get this because light is a electromagnetic wave and which have both electric as well as magnetic component.

Permittivity of free space occurs in electricity.

And,

Permeability of free space, occurs in magnetism.

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

If a student measures the speed of light to be 2.4587 × 108 m/s, then do...

If a student measures the speed of light to be 2.4587 × 108 m/s, then do they have a problem with their accuracy, their precision or both given that the accepted value is 2.9979 × 108 m/s?

A 425-m long spaceship passes by an observer at the speed of 2.60×108 m/s. What length...

A 425-m long spaceship passes by an observer at the speed of 2.60×108 m/s. What length does the observer measure for the spaceship? .... m What is the rest energy of 37 g of shelled peanuts? .... J Find the energy in joules of a single photon of microwave radiation with the wavelength of 0.76 cm..... J Using the Bohr model, find the wavelength in nanometers of the radiation emitted by a hydrogen atom, when it makes a transition from...

part 1. Light waves are electromagnetic waves that travel at 3.00 108 m/s. The eye is...

part 1. Light waves are electromagnetic waves that travel at 3.00 108 m/s. The eye is most sensitive to light having a wavelength of 5.50 10-7 m. (a) Find the frequency of this light wave. Hz (b) Find its period. s Part 2 .Orchestra instruments are commonly tuned to match an A-note played by the principal oboe. The Baltimore Symphony Orchestra tunes to an A-note at 440 Hz while the Boston Symphony Orchestra tunes to 442 Hz. If the speed...

An electron with a speed of 7.61 × 108 cm/s in the positive direction of an...

An electron with a speed of 7.61 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 1.14 × 103 N/C, traveling along a field line in the direction that retards its motion. (a) How far will the electron travel in the field before stopping momentarily, and (b) how much time will have elapsed? (c) If the region containing the electric field is 7.36 mm long (too short for the electron to stop...

A light year is the distance light travels in 1 year. Light travels at 3108 meters...

A light year is the distance light travels in 1 year. Light travels at 3*108 meters* sec-1. Write a program that calculates and displays the number of meters light travels in a year.

A tortoise can run with a speed of 0.13 m/s, and a hare can run 20...

A tortoise can run with a speed of 0.13 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 5.0 minutes. The tortoise wins by a shell (20 cm). (a) How long does the race take? s (b) What is the length of the race?.

3) A soccer ball is kicked with an initial horizontal speed of 8 m/s and an...

3) A soccer ball is kicked with an initial horizontal speed of 8 m/s and an initial vertical speed of 6 m/s. Identify the following quantities and include one short sentence to explain your answer using the concepts of projectile motion (no calculations are necessary). Assume that projection and landing height are the same and neglecting air resistance (4 pts): a) The ball’s horizontal speed 0.5 seconds into its flight is: because: b) The ball’s horizontal speed midway through its...

3) A 2 kg block is sliding at an initial speed of 10 m/s across a...

3) A 2 kg block is sliding at an initial speed of 10 m/s across a surface, encountering a constant friction force of 7 N. How much work is done on the block after it slides 22 cm? Answer: Hint: Does the block gain or lose energy during this process? What sign does this imply for the work done on it? 4) How fast is the block moving after sliding 22 cm? Answer: Hint: You can treat the block like...

Prob.3) A jet-powered aircraft flies at a speed of 320 m / s at an altitude...

Prob.3) A jet-powered aircraft flies at a speed of 320 m / s at an altitude of 9150 m, where the ambient conditions are 32 kPa and –32 ° C. The pressure ratio in the compressor is 12 and the temperature at the inlet of the turbine is 1,400 K. The air enters the compressor at a rate of 60 kg / s and the jet fuel has a calorific value of 42,700 kJ / kg. Assuming ideal operation for...

A football kicker can give the ball an initial speed of 25.0 m/s. What are the...

A football kicker can give the ball an initial speed of 25.0 m/s. What are the (a) least and (b) greatest elevation angles at which he can kick the ball to score a field goal from a point 50.0 m in front of goalposts whose horizontal bar is 3.44 m above the ground? When doing this, you may want to research some trig identities to get a formula involving only tangent functions. Also, since there are two values of angle...

Subjects