Determine the coffees rate of heat loss by radiation

Assignment Help Physics
Reference no: EM13520307

A spherical pot of hot coffee contains 0.75L of liquid (essentially water) at an initial temperature of 90 degree celsius. The pot has an emissivity of 0.60, and the surroundings are at a temperature of 20.0 degree celsius.

Calculate the coffee's rate of heat loss by radiation. (Express your answer to two significant figures and include the appropriate units.)

Reference no: EM13520307

Questions Cloud

Calculate the escape velocity from the surface of the planet : The escape velocity of a bullet from the surface of planet Y is 1759.0 m/s. Calculate the escape velocity from the surface of the planet X
What will be book value of machine after four years : What will be book value of machine after four years using straight line method?
Define a voltaic cell consists of an half cell : A voltaic cell consists of an Mn/Mn2+ half cell and a Pb/Pb2+ half cell. Calculate [Pb2+] when [Mn2+] is 2.1 M and Ecell= 0.27 V
Find how much charge flows through the switch : Initially, the switch in the figure below is open and the capacitor is uncharged. V = 3 V and C = 18 µF. How much charge flows through the switch after the switch is closed
Determine the coffees rate of heat loss by radiation : A spherical pot of hot coffee contains 0.75L of liquid (essentially water) at an initial temperature of 90 degree celsius. Calculate the coffee's rate of heat loss by radiation
Explain the mno2 used in dry cells can itself be produced : In a dry cell, MnO2 occurs in a semisolid electrolyte paste and is reduced at the cathode. The MnO2 used in dry cells can itself be produced by an electrochemical process of which one half-reaction is shown below.
Find the velocity of the box after work has been done on it : Two forces push simultaneously a stationary 2kg box in opposite directions: F1 acts from left to right and does 150J of work on the box while F2 acts from right to left
Explain what is the ksp of the solid : You add an excess of solid MX in 250 g water. You measure the freezing point and find it to be -0.028 degrees celsius. What is the Ksp of the solid. Assume the density of the solution is 1.0 g/cm^3.
Explain ka for hx is much greater that ka for hy : You have two salts, AgX and AgY, with very similar Ksp values. You know that Ka for HX is much greater that Ka for HY. Which salt is more soluble in acidic solution. Explain

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

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