Equation def

What is equation in math definition? An equation says that two things are equal. It will have an equals sign “=” like this: 7 + 2 = 10 − 1. That equation says: what is on the left (7 + 2) is equal to what is on the right (10 − 1) So an equation […]

Coulombs law equation

What is Coulomb’s law simplified? Coulomb’s Law is one of the basic ideas of electricity in physics. The law looks at the forces created between two charged objects. As distance increases, the forces and electric fields decrease. You also need to understand that forces between objects become stronger as they move together and weaker as […]

Stdev equation

How do you calculate Stdev? To calculate the standard deviation of those numbers:Work out the Mean (the simple average of the numbers)Then for each number: subtract the Mean and square the result.Then work out the mean of those squared differences.Take the square root of that and we are done! What formula does Excel use for […]

Newtons 2nd law equation

What does Newton’s second law equation mean? For a constant mass m, Newton’s second law looks like: F = m * (V1 – V0) / (t1 – t0) The change in velocity divided by the change in time is the definition of the acceleration a. The second law then reduces to the more familiar product […]

Expectation equation

How do you calculate expectation? The basic expected value formula is the probability of an event multiplied by the amount of times the event happens: (P(x) * n). What is expectation function? Using expectation, we can define the moments and other special functions of a random variable. Definition 2 Let X and Y be random […]