A balloon is rising at 3. 6 m/s and at the same time is being blown by wind of 5. 4 m/s from the east. What is the actual magnitude and direction of the velocity of the balloon?.

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

Which is the most accurate name for the covalent compound p2o3?