Simple raceme
Explication
A simple raceme has flowers arranged along an axis that open one after another in sequence. Stock is the example given for this pattern, while a corymb forms a flatter top and an umbel spreads from one point.
10 N toward the 30 N force
Explication
The net force is found by subtracting opposing forces, so 30 N minus 20 N gives 10 N in the direction of the larger force. Balanced forces would give a net force of zero, which is not the case here.
Incomplete combustion because there is not enough oxygen
Explication
A yellow flame shows incomplete combustion, which happens when there is not enough oxygen for the fuel to burn completely. A blue flame is the sign of complete combustion.
Second class lever
Explication
A second class lever has the load between the fulcrum and the effort. This arrangement can save effort when the effort arm is greater than the load arm, giving a mechanical advantage greater than 1.
Energy is released to the surroundings
Explication
Forming chemical bonds is an exothermic step, so energy is released to the surroundings. Breaking chemical bonds, by contrast, is endothermic because it absorbs energy.
Anther; ⚥
Explication
The anther is the pollen-producing part of the flower, and the source uses the symbol ⚥ to represent the flower type. The ovary, sepal, and petal have different functions.
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Inflorescence types — examples?
Raceme, corymb, umbel
Net force — definition?
Resultant force from all forces
Balanced forces — effect?
No change in motion
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