c. constant force
b. field force
d. planetary force?
a force that does not involve physical contact between two objects ic called field force.
B. linear
C. quadratic
D. direct proportion
Answer:
C. quadratic
Explanation:
Linear graphs are straight lines, and direct proportion graphs are lines that pass through the origin.
Inverse proportion graphs have vertical and horizontal asymptotes passing through the origin.
Quadratic graphs are parabolas.
The graph shown is a parabola, or quadratic.
Answer:
The pan having beakers with steel ball will go down.
Explanation:
Both steel ball and plastic ball will experience buoyant force in upward direction . These forces will have same magnitude because they displace same volume of water. Both of them experience reaction force of buoyant force acting in downward direction which will try to lower the pan equally. But in case of plastic ball which is tied to the bottom , the tense string will apply a force equal to buoyant force in upward direction on the bottom of the beaker.
This force will balance the reaction buoyant force acting on the bottom of beaker in downward direction . Hence this pan will remain balanced but the other pan will go down.