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What variables in a micro hydro system could you change to get more electricity from it?
Wiki User
∙ 11y ago
The size of the stator should be expanded by using higher gage and more winding, the size of the rotor should also be expanded to bigger size. The most important is the speed of the water flow which will gear up the rotor faster.
Wiki User
∙ 11y ago
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Could variables other than x and y be used in a system of equations?
Yes
What does a straight line tells you on a line graph?
It tells you that the two variables in the graph change together at the same rate. There may or may not be a causal relationship between the tw variables: both could be related to a third variable which is not part of the graph.
Does a expression contain two variables?
It could
Does the solution to a system of three equations in three variables is always one point?
No. There could be no solution - no values for x, y, and z so that the 3 equations are true.
What kind of system has infinitely many solutions?
In order for a system to have infinitely many solutions, it must contain an equation that could be solved by any set of variables. In simple terms, a two-variable system can only be solved through two distinct equations; however, if one of these equations becomes meaningless, or could be solved by any set of variables, the other equation becomes meaningless as well because any value of y could match a given value of x. In terms of linear algebra, or any set or matrices meant to represent a system, infinitely many solutions occur due to an all 0 row. After the system is reduced to row echelon form, an all 0 row indicates that all coefficients in a given equation are equal to 0, so it does not matter what the variables are. This means that the number of equations no longer equals the number of variables and it becomes impossible to solve through cancellation and back-substitution.
What are things in an experiment that change or could be changed are called?
variables
Could variables other than x and y be used in a system of equations?
Yes
What are differences between the system variables and the system parameters?
A parameter is a limit: could be a speed limit on the road. A variable is something that changes in the system: could be the actual speed of a car.
Electricity powered homes and factories. How did electricity change Americans' lives?
Electricity powered homes and factories. It changed American lives by extending the number of hours in the day when people could work and play.
How did the light bulb change science?
It made light so people could see and it was the start of electricity
One application that use microelectronics system?
A well known application of a microelectronic system is the AC to DC converter. If, for example, you wanted to take electricity from a wall outlet you could use 4 diodes a resistor and a capacitor of correct values to change it into a DC current.
How do you figure out the variables in a science project?
The variable that you change is the independent variable(which you change). This could be the amount of light, fertilizer or salt that you give to a plant to observe how it affects its growth. What you measure is the dependent variable(the variables that change due to the change in independent variable) eg mass of the plant each day or week, number of leaves or height. All other variables are called the control variables(variables that are constant throughout the experiment). These make the experiment a "fair test". In the above experiment if you were to vary the amount of salt in the soil then each plant must be given the same amount of light, fertilizer, water etc.
What does a straight line tells you on a line graph?
It tells you that the two variables in the graph change together at the same rate. There may or may not be a causal relationship between the tw variables: both could be related to a third variable which is not part of the graph.
When an equation has two variables there is a number of values that the two variables could have?
If an equation has two variables, we'll call them (x,y), the variables can be any value as long as both sides of the equation have the same result. If the equation was x = y, then the variables could be (1,1), (2,2), (3,3),etc...
What is the difference between predetermined and exogenous variables?
Predetermined variables are determined by factors in the past and cannot be changed, while exogenous variables are determined by factors outside the model being analyzed. Predetermined variables are considered to be endogenous in the context of a model, while exogenous variables are considered to be exogenous.
If a system is a collection of interacting part what happens when one of the parts is changed?
The system changes
Does a expression contain two variables?
It could
