Evaluate the surface area of the filament

Reference no: EM13544866

The filament of a light bulb has a temperature of 2.85E+3 °C and radiates 40 watts of power. The emissivity of the filament is 0.344. Find the surface area of the filament.

Reference no: EM13544866

Questions Cloud

A cylindrical aluminum rod with an initial length : A cylindrical aluminum rod, with an initial length of 0.8200 m and radius 1200.0 µm, is clamped in place at one end and then stretched by a machine pulling parallel to its length at its other end. Assuming that the rod's density (mass per unit volume..

Difference between the angular speeds of wheels on the left : The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the wheel on the right side. A car is driving at a constant speed around a circular track on level ground, completing each l..

Calculate the temperature of the well water : The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 299 K. Determine the temperature of the well water

What latitude is tangential speed-person living in ecuador : The earth has a radius of 6.38 x 106 m and turns on its axis once every 23.9 h. (a) What is the tangential speed (in m/s) of a person living in Ecuador, a country that lies on the equator? (b) At what latitude (i.e., the angle in the figure, in degre..

Evaluate the surface area of the filament : The filament of a light bulb has a temperature of 2.85E+3 °C and radiates 40 watts of power. The emissivity of the filament is 0.344. Find the surface area of the filament

Estimate where is the image formed : An object 3.25 cm high is placed 18.7 cm in front of a convex mirror with radius of curvature of 8.35 cm. Where is the image formed

What is the x-component of the net torque on the disk : A uniform disk with mass m = 9.09 kg and radius R = 1.37 m lies in the x-y plane and centered at the origin. Three forces act in the +y-direction on the disk: 1) a force 317 N at the edge of the disk on the +x-axis, 2) a force 317 N at the edge of..

Evaluate how much work is done by the rope on the sledge : A sledge loaded with bricks has a total mass of 18.1 kg and is pulled at constant speed by a rope inclined at 20.8° above the horizontal. What is the mechanical energy lost due to friction

Explain the concentration of the highlighted molecule : In the following buffer system, what happens to the concentration of the highlighted molecule if you add base in the form of OH-. HF + NaF + H2O F- + H3O+ + Na+

User Account

All Pages