Estimate the thermal conductivity of the styrofoam

Assignment Help Physics
Reference no: EM13499609

A Styrofoam box has a surface area of 0.79 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, and the outside temperature is 23°C. If it takes 7.2 h for 5.0 kg of ice to melt in the container, determine the thermal conductivity of the Styrofoam.

Reference no: EM13499609

Questions Cloud

Find the time that it takes for the car to come to rest : A car of mass m is initially moving with a velocity v. Find the time that it takes for the car to come to rest
Find the energy transferred in given time : Find the energy transferred in 1 h by conduction through a concrete wall 2.2 m high, 3.90 m long, and 0.20 m thick if one side of the wall is held at 20°C and the other side is at 5°C
Calculate how much ice remains if any : If 7.50 kg of ice at -5.00°C is added to 12.0 kg of water at 15°C, compute the final temperature. T = 0 C, How much ice remains, if any
How many stairs must woman climb to work off her breakfast : A 45 kg woman cheats on her diet and eats a 439 Calorie (439 kcal) jelly donut for breakfast. If the human body is only 28% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfas..
Estimate the thermal conductivity of the styrofoam : A Styrofoam box has a surface area of 0.79 m2 and a wall thickness of 2.0 cm. The temperature of the inner surface is 5.0°C, determine the thermal conductivity of the Styrofoam
Estimate the final equilibrium temperature : A 24.0 kg gold bar at 27.0°C is placed in a large, insulated 0.800 kg glass container at 15.0°C with 2.00 kg of water at 25.0°C. Calculate the final equilibrium temperature
Find where does the block finally come to rest : A 189g block is launched by compressing a spring of constant k= 200 N/m a distance of 15cm. After launch, where does the block finally come to rest? Measure from the left end of the frictional zone
Calculate the final equilibrium temperature of the system : Suppose 0.380 kg of water initially at 45.0°C is poured into a 0.300 kg glass beaker having a temperature of 25.0°C. Calculate the final equilibrium temperature of the system
How many loops must be on the secondary side : Say the electrical company needs to step down the voltage from 7200V RMS in the power line behind your house to the required 120V RMS, how many loops must be on the secondary side

Reviews

Write a Review

Physics Questions & Answers

  What is the standard deviation of the measurements

Four length measurements are carried with the following results: 4.5 cm, 4.2 cm, 4.8 cm, and 4.4 cm. What is your best estimate of the true length. What is the standard deviation of the measurements

  Evaluate the exhaust velocity of the rocket

A rocket of total mass M and with burnout mass 0.20 M attains a speed of 3 200 m/s after starting from rest in deep space. Evaluate the exhaust velocity of the rocket?

  Question1an observer moving at a speed of 0995c relative to

question1an observer moving at a speed of 0.995c relative to a rod measures its length to be 2.00 m and sees its length

  What is the moment about woman elbow

A 59kg woman trips while walking down the street. She stumbles forward and falls onto her outstretched right hand. At the instant her hand contacts the ground her whole body is moving downward at a velocity of 9m/s and has a downward acceleration ..

  What is the frequency of light in the vacuum

Light has a wavelength of 550 nm in a vacuum. It then enters a medium of index of refraction 1.70, What is the frequency of this light in the vacuum, What is its frequency in the medium

  You are bowling and have one pin left standing you roll the

you are bowling and have one pin left standing. you roll the 10kg bowling ball at a velocity of 1 m s into the 1kg pin

  How much work does the father do

A father pulls his young daughter on a sled with a constant velocity on a level surface a distance of 10 m. how much work does the father do

  What was the change in the direction of the velocity

A plane is flying in the horizontal plane. At time t1 = 0 s with the components of its velocity are vx = 100 m/s and vy = 120 m/s. What was the change in the direction of the velocity

  Find out an internal resistance of the battery

The linear impulse delivered by the hit of a boxer is 248 N • s during the 0.373 s of contact. What is the magnitude of the average force exerted on the glove by the other boxer? React in units of N

  Find the de broglie wavelength of the tennis ball

A 58 g tennis ball is served at 40 m/s. Find the de Broglie wavelength of the tennis ball

  What is the total magnification of the telescope

A reflecting telescope has a main mirror with fM = 620 mm. If an eyepiece with a magnification of 15 is used, what is the total magnification of the telescope

  What force do you have to exert to achieve the same torque

To tighten a bolt, you push with a force of 78 N at the end of a wrench handle that is 0.27 m from the axis of the bolt. what force do you have to exert to achieve the same torque

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