Question: Someone plans to float a small, totally absorbing sphere 0.500 m above an isotropic point source of light, so that the upward radiation force from

Someone plans to float a small, totally absorbing sphere 0.500 m above an isotropic point source of light, so that the upward radiation force from the light matches the downward gravitational force on the sphere. The sphere's density is 19.0 g/cm3, and its radius is 2.00 mm.

(a) What power would be required of the light source?

(b) Even if such a source were made, why would the support of the sphere be unstable?

Step by Step Solution

★★★★★

3.52 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The upward force supplied by radiation pressure in this case Eq 3332 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

2-P-E-E-W (67).docx

120 KBs Word File

Students Have Also Explored These Related Electrodynamics Questions!

The intensity I of light from an isotropic point source is determined as a function of distance r from the source. Figure gives intensity I versus the inverse square r-2 of that distance. The...

An isotropic point source of radiation power P is located on the axis of an ideal mirror plate. The distance between the source and the plate exceeds the radius of the plate -fold. In terms of the...

If a slit diffracts 650.nm light so that the diffraction maximum is 4.0cm wide on a screen 1.50m away, what will be the width of the diffraction maximum for light of wavelength 420nm?

Someone plans to float a small, totally absorbing sphere 0 . 5 0 2 m above an isotropic point source of light, so that the upward radiation force from the light matches the downward gravitational...

Someone plans to float a small, totally absorbing sphere 0 . 5 m above an isotropic point source of light, so that the upward radiation force from the light matches the downward gravitational force...

A scientist decides to float a small vantablack ( i . e . , totally absorbing ) sphere at a distance R immediately above an isotropic point source of light, so that its radiation pressure will exert...

please answer these MCQ questions. NO explanation NEEDED JUST MARK THE RIGHT ANSWERS 1. Which one of the following is INCORRECT? Select one: a. A computer battery has more energy per gram than a...

Big dreams, arrogance, infighting, and delusion all collided in the disastrous attempt to fix venerable retail giant J.C. Penney. The inside story of a revolution derailed. WHEN YOU FIND A SAVIOR,...

1- Provide an itemized list of important points of the article. 2- State the similarities and differences between flexibility and agility. 3- State the similarities and differences between redundancy...

What Leaders Really Do Leadership is different from management, but not for the reasons most people think. Leadership isn't mystical and mysterious. It has nothing to do with having "charisma" or...

(i) Complete the steps outlined in those slides and show that the slope (8) and intercept (Bo) estimates for the least squares regression line are given by: B = n 21(2i - z)(y - y) (x x)2 and Bo = ...

What are some of the major characteristics of Russian organized crime?

The biggest time - consuming activity for most Information security professionals is: Responding to information security incidents Researching new technologies Fixing software bugs Helping customers...

What is the most important factor that affects a firms financing mix?

A population has mean 5.75 and standard deviation 1.02. Random samples of size 81 are taken. Find the mean and standard deviation of the sample mean. How would the answers to part (a) change if the...

Since Omcitville started keeping daily climate records in 1923, the highest temperature ever recorded was 39 C, on August 12, 2011, and the lowest was 4 C, on January 21, 1954. Assuming that the...

Write the SQL commands in the four Questions 1. Find the largest of all the airports 2. List the names of the mechanics who work in Michigan 3. How many foreign keys does each relation have? 4....

Concerning the concept of subshells and orbitals, (a) How many subshells are found in the n = 3 level? (b) What are the names of the subshells in the n = 3 level? (c) How many orbitals have the...

An undersea research chamber is spherical with an external diameter of 5.20m. The mass of the chamber, when occupied, is 74,400kg. It is anchored to the sea bottom by a cable. What is (a) The buoyant...

A scuba diver and her gear displace a volume of 65.0 L and have a total mass of 68.0 kg. (a) What is the buoyant force on the diver in sea water? (b) Will the diver sink of float?

Archimedes principle can be used not only to determine the specific gravity of a solid using a known liquid (Example 10-8); the reverse can be done as well. (a) As an example, a 3.40-kg aluminum ball...

Freight Train Construction is analyzing a proposed project. The company expects to sell 1 , 4 0 0 units, + - 2 percent. The expected variable cost per unit is $ 2 1 0 and the expected fixed costs are...

A research institute reports that 69% of workers reported that theyand/or their spouse had saved some money for retirement. Complete parts a and b below. a.If a random sample of 40 workers istaken,...

Werth Company produces tie racks. The estimated fixed costs for the year are $288,000, and the estimated variable costs per unit are $14. Werth expects to produce and sell 60,000 units at a price of...