Find the filaments temperature

Assignment Help Physics
Reference no: EM13552302

The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.) The filament has surface area of 0.150 mm2 and an emissivity of 0.950. Find the filament's temperature. (The melting point of tungsten is 3683 K.)

Reference no: EM13552302

Questions Cloud

Complete orthonormal set of eigenfunctions of the operator : A bound quantum system has a complete set of orthonormal, no-degenerate energy eigenfunctions u(subscript n) with difference energy eigenvalues E(subscript n). The operator B-hat corresponds to some other observable and is such that:
Estimate the magnetic field in the center of the solenoid : A very short solenoid contains N = 20 circular loops of wire. The radius of the loop is R = 0.5 meters, what is the magnetic field in the center of the solenoid
Explain the constant-pressure heat capacity of a sample : The constant-pressure heat capacity of a sample of a perfect gas was found to vary with temperature according to the expression cp/(J K?1) = 20.17 + 0.3665(T/K). Calculate q, w, ?U, and ?H when the temperature is raised from 48°C to 220°C at the f..
Define how many excess electrons has it acquired : On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair. If your body develops a charge of -14 (microcoulombs), how many excess electrons has it acquired
Find the filaments temperature : The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.), Find the filament's temperature
Identify an enterprise technology used in organizations : Identify an enterprise technology used in organizations today that is used to manage the value chain.
Acceleration of ocean liner during this period of time : A boat came to rest at the surface of the ocean before it started to sink. Due to the resistance of the seawater, the sinking boat reached a terminnal velocity of 10m/s for 30 s . Determine the average acceleration of the ocean liner during this peri..
Explain the vapor pressure of water is enclosed : The vapor pressure of water at 25 is 23.76 .If 1.10 of water is enclosed in a 2.0 container,there will be liquid persent. what mass of liquid
Determine the speed of the sled at the bottom of the hill : A hill sled moves from the top of a hill at 1m/s. What is the speed of the sled at the bottom of the hill

Reviews

Write a Review

Physics Questions & Answers

  Estimate size of image

An object 6 cm high is placed 30 cm from a concave mirror of focal length 10 cm, Calculate size of image

  What is the cars final location

A car starts from the origin and is driven 1.1 km south and then 3.5 km in a direction 53° north of east. what is the car's final location

  Find at what angle was the key moving when he caught it

Amorosa, who is on a balcony 40 m above the ground, throws the key to her heart at 37 degrees below the horizontal to Pedro on the ground. At what angle was the key moving when he caught it

  Find the linear velocity of the endpoint of the bat

A child tries to swing an adult size baseball bat without choking up on it. She can manage only 180 °/s of angular velocity with a radius of 75 cm. Compute the linear velocity of the endpoint of the bat in each case

  What is the distance between the centers of adjacent atoms

Zinc has a density of 7.14 g/cm3, and the mass of a zinc atom is 1.09 10-25 kg. What is the distance between the centers of adjacent atoms

  What is the total torque on the object

An object's moment of inertia is 2.00kgm2 . Its angular velocity is increasing at the rate of 3.80, What is the total torque on the object

  Estimate the pressure of the gas

Two moles of an ideal gas at 200 K occupies a 40 m3 container. What is the pressure of the gas

  How are the total energy and maximum speed affected

If the amplitude of a particle in simple harmonic motion is doubled, how are the total energy and maximum speed affected

  Calculate the instaneous force on the electron

An electron is moving northwards with a velocity 10^7 m/s in a magentic feild of 3T directed eastwards. Calculate the instaneous force on the electron

  What is the total charge on the solid cylinder

A solid insulating cylinder of radius A is surrounded by a hollow, concentric conducting cylinder of inner radius A and outer radius B. What is the total charge on the solid cylinder

  What is the least amount of force you must exert

A bolt is to be tightened with a torque of 8.0 Nm. what is the least amount of force you must exert

  What is your breathing rate

Suppose that you are traveling on board a spacecraft that is moving with respect to the earth at a speed of 0.976c. what is your breathing rate

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