Aspherical pot of coffee contains 0.50 l of liquid at an initial temperature of 80°c. the pot has an emissivity of 0.40, and the surroundings are at a temperature of 20°c. calculate the coffee’s rate of heat loss by radiation. use σ = 5.67 × 10–8 w/(m2 • k4).
a.
6.1 w
b.
4.9 w
c.
3.0 w
d.
5.6 w

What are the choices?

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

A) acceleration. this seems to be the one that makes sense.

I'm not sure what your asking buddy.. but i know that you can weld two peices of steel by pure force and pressure.