Answer: B) the President to veto a bill passed by Congress
Explanation: The principle of Checks and balances in government may be explained as an idea of power segmentation which allows each arm of a democratic government including the executive, the legislative and the judiciary to have a certain amount of power and control over policies, laws and reforms of a country. This idea is especially useful in checking the excesses of a certain arm of government and ensures that other arms are able to come in when a certain arm of government step beyond it's bounds.
The president could veto a bill passed by Congress, because, bills are made and passed by the legislative or congress, however, the executive arm has the power to enforce or veto the bills.
The net force on the hanging object is zero. If it were not zero, then the object would be accelerating in some direction.
Answer: Mass of the first ball is 5kg; Mass of second ball is 3.75kg
Explanation:
Given that:
Force of first ball = 15 N
Acceleration of first ball = 3 m/s2
Mass of first ball M1 = ?
Force of second ball = 15N (same force)
Acceleration of second ball = 4 m/s2
Mass of first ball M2 = ?
A) Since force is a product of mass of a substance by the acceleration by which it moves: Force = Mass x acceleration
For first ball, Force = M1 x A
15 N = M1 x 3 m/s2
M1 = 15N/3 m/s2
M1 = 5 kg
B) For second ball, Force = M2 x A
15 N = M2 x 4 m/s2
M2 = 15N/4m/s2
M2 = 3.75kg
Thus, the mass of the first ball is 5kg while the second ball is 3.75kg
For a flower to be pollinated, pollen from an anther (which is located at the top of the stamen) needs to reach a stigma (at the top of the pistle.) Some plants are genetically capable of pollinating themselves if their own pollen reaches their own stigma; some plants are not capable of self pollination under any circumstances.
For plants that can genetically self pollinate, but would prefer not to, they can avoid this by having their pistil and pollen/stamens mature at different times. If the stamens mature first, the pollen will be dispersed by animals or wind or whatever dispersal mechanism it relies on. Then by the time the pistil is ready to be pollinated, there is no pollen left in that flower to land on the stigma.
