3. Objects with masses of 0.2 kg and 0.3 kg are separated by 0.15 m. A third object of mass 0.05 kg is placed between them on the line joining the first two objects. a) Find the net gravitational attraction force exerted on the third object if it is placed 0.05 m from the 0.3 kg mass. [3.35x10-N]
b) At what position along the line the third object should be placed for no net gravitational force exerted it. [6.7 cm]​

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

In science and physics what is the standard unit of measure for speed?

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c. what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?