A demonstration helps students Motion Demonstration Model
Ball
release
Ball mass = 2 kg
w
4 m
أم
3 m
2 m
1 m
Om
Which answer choice correctly describes the ball's kinetic and potential energy?
Answer
F) The ball has more potential energy at position X than at position Z.
G The ball has more kinetic energy at position Y than at position W.
H The potential energy and kinetic energy of the ball are equal at position X.
J The potential energy and kinetic energy of the ball are greatest at position Z.

Ametal with a large number of free flowing electrons most likely has good conductivity

A)  it is neutral because the concentration of hydronium ions equals that of hydroxide ions

Use the universal gas law formula: pv = nrt now, the key word in this problem is stp, so at stp, temperature will always be 0 degrees celsius and pressure will always be 1.0 atm or 760 torr. given something is at stp, we already know the two variables pressure and temperature. the other thing we can find with the given information is moles. to find moles, just divide grams by molar mass of the element. 16.0g / 2(16.00)g/mol = 0.5 moles plug the values in to the equation pv = nrt (1.0 atm)( x ) = (0.5 )(0+273=273k) the r value is just a constant for when we use atm, liters, moles and kelvin. i'm assuming you want your answer in liters, but if you dont just move the decimal 3 to the right in your final answer. so when plugging these numbers in to your calculator and trying to find x, you get 11.20665 liters using significant figures the answer is 11.2 liters