If a balloon is heated, what happens to the volume of the air in the balloon if the pressure is constant? a it decreases. b it increases. c it stays the same. d the change cannot be predicted.

How can a global dependence on fossil fuels have associated social costs?

Which statement best defines work?

A particle moves along the x axis. It is intially at the position 0.270 m, moving with velocity 0.140 m/s and acceleration - 0.320 m/s^2. Suppose it moves as a particle under constant acceleration for 4.50m/s^2. Find its position.

Which of the following is an example of a decomposition reaction? a. photosynthesis b. digestion c. polymerization d. exchange of ions between two compounds

How to write 0.23000 in scientific notation

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

What cells in the nervous signals travel through the nervous system

A mechanic pushes a 3.60 ✕ 103-kg car from rest to a speed of v, doing 5,130 j of work in the process. during this time, the car moves 21.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Why does a buoyant force act on every object in a fluid? Pressure pushing up on the bottom of the object is greater than the pressure pushing down on the top.