There is a ruler and pen on the desk. This is her and that is his

There is a ruler and a pen on the desk. This ruler is hers and that pen is his

He brought pens, rulers, erasers, reference books and other stationery

He took pen, ruler, eraser and other stationery

There are rulers and pens on the desk. This is Su Ming's and that is Chen Fang's

There is a ruler and pen on the desk. The ruler is Su Ming's and the pen is Chen Fang's. or there is a ruler and pen on the desk. The pen is Su Ming's and the ruler is Chen Fang's

About all the formulas of compulsory 2 physics in the next semester of senior high school, all the prize points listed!

Physical theorem, law, formula table
1、 Motion of particle (1) --- linear motion
1) Uniform linear motion
1. Average velocity v = s / T (definition) 2. Useful inference vt2-vo2 = 2As
3. Velocity at intermediate time VT / 2 = vplat = (VT + VO) / 2 4. Final velocity VT = VO + at
5. Middle position velocity vs / 2 = [(VO2 + vt2) / 2] 1 / 2 6. Displacement S = V flat t = VOT + at2 / 2 = VT / 2T
7. Acceleration a = (VT VO) / T {with VO as the positive direction, a and VO are in the same direction (acceleration) a > 0; if a is in the opposite direction, a

2. Complete?

1) The results show that: 1. Average velocity vt2 = s / T (definition) 2. Useful inference vt2-vo2 = 2As 3. Middle time velocity VT / 2 = vt2 = (VT + VO) / 2 4. Final velocity VT = VO + at 5. Middle position velocity vs / 2 = [(VO2 + vt2) / 2] 1 / 2 6. Displacement S = vt2 t = VT + at2 / 2 = VT / 2T 7

There is a ruler and pen on the desk. This is her and that is his