What is the earths energy budget? a. the balance between the amount of energy coming into earth from the sun and going back out into space b. the total energy available in the universe minus earths energy use c. the total energy output by the sun minus all the solar system plants energy use d. the total energy output by the sun plus the energy reflected by earths atmosphere back into space

When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.

Could someone me find the answer to this problem.

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.