What is the difference between thermal energy and heat?

sample responds: Heat is thermal energy that flows from a warmer substance to a cooler substance. Thermal energy is the part of internal energy that can be transferred.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

statement #3 on andre"s list is false.