1. The problem statement, all variables and given/known data The following is the equation of ideal gas law, where p is pressure (Force/Area), V is volume, n is number of moles and T is temperature in Kelvin. What is the fundamental unit of R? pV = nRT A. kg^−1 · m^−2 · s^ 2 · K · mol B. kg^−1 · m^−4 · s ^2 · K · mol C. kg · m^4 · s ^−2 · K · mol^−1 D. kg · m^2 · s ^−2 · K^−1 · mol^−1 E. R is dimensionless The fundamental unit of acceleration a is ms^−2 . Which of the following equations is/are impossible? Give a brief justification. (t is time, v is velocity and A, B and C are dimensionless constants) A. a = A^−2BC^4 + v /t B. a = Cv /t C. a = v /t D. a = v/ t ^2 E. a = t + v /t Which of the following is the typical mass (60 g) of a tennis ball? A. 6 × 10^4 mg B. 60 × 10^−1 kg C. 600 × 10^5 µg D. 6000 × 10^−5 g E. 60 000 × 10^5 ng 2. Relevant equations 3. The attempt at a solution 3: I both calculated 60g in choice A and C but there should only be 1 answer in this q. idk what happened. 2,1: cuz im a starter, i have no idea how things work in these 2 q.