Find what mass of liquid helium boils away

Assignment Help Physics
Reference no: EM13656671

Liquid helium is stored at its boiling-point temperature of 4.2 Kin a spherical container (r=0.30 meter). The container is a perfect blackbody radiator. The container is surrounded by a spherical shield whose temperature is 67 K. A vacuum exists in the space between the shield and the container. The latent heat of vaporization for helium is 2.1x104 J/kg. Find what mass of liquid helium boils away through a venting valve in 1 hour?

Reference no: EM13656671

Questions Cloud

Describe will magnesium carbonate out from the solution : Suppose you mix 20 ml of 0.010 M MgCl2 with 20 ml of 0.0020 M Na2CO3, Describe will magnesium carbonate, MgCO3 precipitate out from the solution. Given: Ksp(MgCO3)=4.0 x 10-5
What percentage of incident light intensity is transmitted : A beam of light in air strikes a glass slab at normal incidence. The glass slab has an index of refraction of 1.50. find what percentage of the incident light intensity is transmitted
Resistor is made out of a long wire having a length : A resistor is made out of a long wire having a length L. Each end of the wire is attached to a terminal of a battery having a constant voltage Vo. A current I flows during the wire. If the wire were cut in half, making two wires of length L/2, and bo..
Determine what is the coefficient of friction : A 10.0 meter long, 200N ladder rests against a wall frictionless. Determine the coefficient of friction if the person stops 6.00 meter up the ladder
Find what mass of liquid helium boils away : Liquid helium is stored at its boiling-point temperature of 4.2 Kin a spherical container (r=0.30 meter). Find what mass of liquid helium boils away through a venting valve in 1 hour
Obtain what is the mass of the gold in the rock : A gold prospector finds a solid rock that is composed solely of gold and quartz. Evaluate what is the mass of the gold in the rock
Determine the shortest time between flashes of light : A stroboscope is a light that flashes on and off at a fix rate. It can be used to illuminate a rotating object, Find the shortest time between flashes of light that will make a three-bladed propeller appear stationary when it is rotating with an an..
Single-loop circuit consists : A single-loop circuit consists of a 7.3? Resistor, 12.0 H inductor, and a 3.1 ?F capacitor. Initially the capacitor has a charge of 6.2? C and the current is zero. Compute the charge (in C) on the capacitor N complete cycles later for N = 5.
Calculate the pressure inside the football : An inflated football has a gauge pressure of 9.3 Ib/in2. Calculate the pressure inside the football

Reviews

Write a Review

Physics Questions & Answers

  Question1consider mass and a frictionless ramp the mass is

question1consider mass and a frictionless ramp. the mass is pushednbspupward with some initial velocity. since of

  What is the magnitude of the earths acceleration

Calculate the magnitude of the gravitational force exerted on a 429-kg satellite that is a distance of 2.91 times earth radii from the center of the earth. What is the magnitude of the earth's acceleration

  Find what is the minimum time necessary for crossing

A hunter wishes to cross a river that is 2.1 km wide and that flows with a speed of 3.8 km/h. What is the minimum time necessary for crossing

  How many grams of ice melts

A vessel which contains an ice-water mixture at 0C is in thermal contact with a water-steam mixture at 100 C. how many grams of ice melts

  How long would it take light to make the round trip

If two people were 15km apart, how long would it take light to make the round trip? How does this time compare with reaction times of 0.2s

  What is the average emf induced in the coil

A closely wound rectangular coil of 95.0 turns has dimensions of 21.0cm by 48.0cm. What is the average emf induced in the coil

  Imagine that a cars x-acceleration during a certain time

imagine that a cars x-acceleration during a certain time period is given by the function axt-bt. if the cars

  A particle m 30 microg q 50 microc moves in a uniform

a particle m 3.0 microg q 5.0 microc moves in a uniform magnetic field given by 60jmt. at t 0 the velocity of the

  Find potential difference between the deflection plates

The deflection plates in an oscilloscope are 10 cm by 2 cm with a gap distance of 1 mm. A 100 volt potential difference is suddenly applied to the initially uncharged plates through a 950 ohm resistor in series with the deflection plates.

  What is the specific heat of the substance

When 195 g of a substance is heated to 335°C and then plunged into a 100 g aluminum calorimeter cup containing 134 g of water at 13.0°C, What is the specific heat of the substance

  Q1 the magnitude of the gravitational force between two

q1. the magnitude of the gravitational force between two sumo wrestlers just before they collide r 0.025 m is 2.77

  An electron is projected with an initial speed of 39 x105

an electron is projected with an initial speed of 3.9 x105 ms directly toward a proton that is fixed in place. if the

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