The buoyancy force on a submarine submerged in the ocean equals

If you quadruple the temperature of a black body, by what factor will the total energy radiated per second per square meter increase? 1,024 64 16 4 256 submit answer

In which item is energy stored in the form of gravitational potential energy? a. a slice of bread b. a compressed spring c. an apple on a tree d. a stretched bow string

Asign is hung between two cables as illustrated below. if the sign weighs 350 n, what is the tension (in n) in each cable?