Define the tea in thermos, Physics

Assignment Help:

Define the Tea in Thermos?

One liter of tea at 90° C is poured keen on a vacuum-insulated container (thermos). The surface area of the thermos walls A=600 cm2. The volume among the walls is pumped down to Po~ 5.10-6 atm pressure (at room temperature). The emissivity of the thermal and the walls capacity of water C = 4.2.103 J/kg K. ignore the heat leakage through the stopper, estimate the

a) Net power transfer

b)  Time for the tea to cool from 90°C to 70°C.


Related Discussions:- Define the tea in thermos

Calculate the radius - protein with a density, 1.  A protein with a density...

1.  A protein with a density of 1.41 g/cm 3 has a molecular weight of 5000 g/mol. a. Calculate its radius. b. The radius measured during an experiment turned out to be 2.24

Determine the electric field strength, A charge of 1.5µC is carried on two ...

A charge of 1.5µC is carried on two parallel rectangular plates each measuring 60mm by 80mm. Measure the electric flux density. If the plates are spaced 10mm apart and the v

Describe motion in two dimensions, Motion of an object in a plane is called...

Motion of an object in a plane is called two dimensional (2-D) motions. For 2-D motion acceleration or velocity can be explained by two elements in any two mutually perpendicular d

Electrostatics, the two point charges +10 nano coulomb and -20 nano coulomb...

the two point charges +10 nano coulomb and -20 nano coulomb are seperated by a distance 0.1m. calculate the neutral point along the line joining of two charges

Determine the final velocity, A charge q of mass m starting from rest is al...

A charge q of mass m starting from rest is allowed to move between two plates having a potential difference of V volt. Determine the final velocity of it? Repulsion is the sure

Electric, Find the electric field between the plates of a capacitor given t...

Find the electric field between the plates of a capacitor given the following:? (1) C= 10pF (2) the capacitor is connected to a 25 V battery (3) there is a vacuum between the capa

Friction, define the coefficient of friction

define the coefficient of friction

Why satellite is thrown horizontally in space?, A satellite is goes form th...

A satellite is goes form the surface of earth vertically and then is turned horixontally in space as it requires to revolve around the earth.

Capacitor, explain spherical capacitor?

explain spherical capacitor?

Newtons laws of motion, Newton's laws of motion (Sir I. Newton) Newto...

Newton's laws of motion (Sir I. Newton) Newton's first law of motion A body remain continues in its state of constant velocity (that may be zero) unless it is acted on

Write Your Message!

Captcha
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