What is the rms value of the electric field at the screen

Assignment Help Physics
Reference no: EM13255093

You want a screen to be illuminated with an intensity of 440 mW/m2. The screen is 12.97 m away from the light source, which is a bare light bulb radiating light in all directions.

What is the power of the light source?

_________W

What is the rms value of the electric field at the screen?

_________V/m

Reference no: EM13255093

Questions Cloud

Describe redefine the standard state : Suppose we redefine the standard state as P=2 atm find the new standard state ^Gf values of the following substances
What is the average speed for the entire two stage event : The propulsion system on a 1500kg rocket car fires for 15 seconds and the propulsion force is equal to F= x(80-x). What is the average speed for the entire two stage event
Calculate probability of finding an electron of valance band : Calculate the probability of finding an electron at the bottom edge of the conduction band. Also calculate the probability of not finding an electron at the top edge of the valance band.
How should social class influences affect the planning : How should social class influences affect the planning of a new restaurant in a large city? How might the four Ps be adjusted as a result of social class influences?
What is the rms value of the electric field at the screen : You want a screen to be illuminated with an intensity of 440 mW/m2. The screen is 12.97 m away from the light source, What is the rms value of the electric field at the screen
Find out the delta g associated with the dissociation : Determine the delta G associated with the dissociation of 5.0g of C76H52O46 at room temperature in 50mL of pH=7.55 buffered solution that has already had 2.5g C76H52O46 dissolved into it.
Design state graph and state table for moore sequential ckt : Design a state graph and state table for a Moore sequential circuit that has two inputs (X1 and X2) and one output (Z). The output begins at 0 and becomes 1 when X1 = 1 and X2 = 1, either concurrently or one after the other
Compute the weight percent of gold : Gold(Au) forms a substitutional solid solution with silver(Ag). Compute the weight percent of gold that must be added to silver to yield an alloy that contains 5.5x10^21 Au atoms per cubic centimeter. The densities of pure Au and Ag are 19.32 and 10...
What is the electric potential across the plates : You wish to design a velocity selector that will allow protons to pass through only if they have a speed of 500 m/s, You decide to produce this electric field using a parallel-plate capacitor with a plate spacing of 1.0 mm. What is the electric pote..

Reviews

Write a Review

Physics Questions & Answers

  Prepare a multiple-step income statement for the year

Prepare a multiple-step income statement for the year ended December 31, 2012, concluding with earnings per share.

  What is an angular acceleration of the pulley

A shuffleboard disk is accelerated to the speed of 6.1 m/s and released. If the coefficient of kinetic friction between disk and the concrete court is 0.30, how far does the disk go before it comes to a stop? The courts are 14.5m long.

  How fast should the car be traveling

How fast should the car be traveling just as it leaves the cliff in order to just clear the river and land safely on the opposite side?

  How much time is spent in pushing the mower

How much time is spent in pushing the mower

  What is the mass of the upper block

a block 20cm wide by 60 cm long balances (symetrically on a similar block which is fixed to the ground. What is the mass of the upper block

  Calculate the velocity of the object for an elapsed time

Calculate the velocity of the object for an elapsed time.

  What is the angular frequency of combination

What is the angular frequency in rev/s of combination.

  Determine the weight w1 and the angle

You're carrying a 3.2-m-long, 25 pole to construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. How much force must you exert to keep the pole motionl..

  What is the current through the power source

Does current through a power supply increase when parallel bulbs are added? For example, if you have a circuit with one bulb and measure the current through the bulb to be 100 mA, what is the current through the power source when you add another b..

  Find an angle between the incident rayand the reflected ray

A pair of in-phase stereo speakers is placed side by side, 2m apart. You stand directly in front of one of the speakers, 5m from the speaker. What do you hear.

  What is the capacitance in the capacitor

A parallel plate capacitor has plates that measure 13.5 cm long by 9.75 cm wide. The plates are separated by a distance of 2.75 mm, What is the capacitance in the capacitor

  What is the specific heat capacity of the other substance

Two bars of identical mass are at 32 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/(kg · C°).

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd