Efua

how do i find the amount of charge on a plate if i am given only the area,distance between the plate and the potential difference between the plates?

10. While running, a 70-kg student generates thermal energy at a rate of 1200 W. To maintain a constant body temperature of 37°C, this energy must be removed by perspiration or other mechanisms. If these mechanisms failed and the heat could not flow out of the student's body, for what amount of time could the student run before irreversible body damage occurred?

(Note: Protein structures in the body are irreversibly damaged if body temperature rises to 44°C or higher. The specific heat of a typical human body is 3480 J/kg • K, slightly less than that of water. The difference is due to the presence of protein, fat, and minerals, which have lower specific heats.)

3. One mole of O2 is heated from a temperature of 20 oC at 1 atm to 100 oC. Assume that O2 is an ideal gas. How much heat must be supplied if the heating is done under:

a. An isometric condition?

using the numbers from 1-9 add three numbers to get 21.

i've worn braces for about a year and a half and anytime i brush for the past two months,i find my gums bleeding but it's not painful.what's wrong?

my dentist normally gives me purple bands for my braces and seriously i think it sucks!!can i get nice colours for girls?

i'm gonna have my braces removed in about 2 years and my friend told me it hurts when the dentist removes them.is it really true?