Answer:
Permanent Magnets and Electromagnets: What are the Differences? A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. ... An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it.
Step-by-step explanation:
Percent error is calculated as
.
The approximation in this case is 3.14, and the theoretical or actual value is pi.
Using the formula, the percent error will be:
= -0.0507%
Answer:
<h2>8x - 1</h2>
Step-by-step explanation:
Four x: 4x
Two x: 2x
Two times two x: 2(2x) = 4x
Four x plus two times two x minus one: 4x + 2(2x) - 1 = 4x + 4x - 1
<em>Combine like terms:</em> = (4x + 4x) - 1 = 8x - 1
Let suppose there are two functions that satisfy the equations
f ' +2f =0
and g' + 2g =0
If we add both of them
f' +g' + 2f + 2g =0
Grouping both the sides
(f+g) ' + 2 (f +g) =0So, if both g and f satisfies it then their sum also satisfy it, So there is a subspace and their sum satisfy them too.
Answer:625
Step-by-step explanation:
a squared plus b squared =c Squared
