Recent content by merbear

Still confused about Rotational Kinetic Energy and angular velocity I was able to figure our the moment of inertia by using the equation I= 2mL^2 However, I tried Part A and C and I still can't figure it out. For finding the rotational kinetic energy I used: K(rot)= (f/2)*kT When...

[SOLVED] Rotational Kinetic Energy and distribution of diatomic molecules a) Calculate the total rotational kinetic energy of the molecules in 1.00 mol of a diatomic gas at 300 K. b) Calculate the moment of inertia of an oxygen molecule (O2) for rotation about either the x- or y-axis shown...

1. Homework Statement Two moles of an ideal gas are carried around the thermodynamic cycle shown in Fig. 18-29. The cycle consists of (1) an isothermal expansion A to B at a temperature of 700 K, with the pressure at A given by pA = 9 atm; (2) an isobaric compression B to C at PC = 4 atm...

[SOLVED] Grams and volume of steam needed to raise the temperature of expresso Homework Statement The temperature of espresso coffee (mostly water) can be increased by blowing 100°C steam into it. How much steam (in grams) is needed to heat up a 13 cm3 cup of espresso from 46°C to 82°C...

Please check my answer for the amount of energy emitted from the sun to the earth I used the L=4*pi*R^2 (sigma)*(T^4) to find the amount of radiation the entire body is emitting and I got 4.46E26. I then said that L/SA=1m^2/X and solved for X; where SA is equal to 4*pi*(R^2+Distance)...

Still a bit confused about the cylinder question I don't understand what you mean when you say, 'under what temperature and pressure'. The question stated that you had one cylinder at 20 degrees and the other one with the weight on it at 80 degrees. It also stated that the piston is subjected...

Homework Statement A 300 cm3 glass is filled with 120 g of ice at 0°C and 210 g of water at 25°C. (a) Characterize the content of the glass after equilibrium has been reached. Neglect heat transfer to and from the environment. Find: mass of water? mass of ice...

[SOLVED] volume of gas in a cylindrical vessel on which a piston has been placed Homework Statement A cylindrical vessel with a tight but movable piston is placed in a vertical position so that the piston, whose area is 60 cm2, is subject to atmospheric pressure. When the gas in the vessel...

[SOLVED] Amount of Energy emitted from the sun to the earth Homework Statement The Sun's surface temperature is 6000 K. Assume that the radiation emitted from the Sun moves radially outward from the Sun and that no radiation is absorbed between the Sun and Earth. How much energy in the form...