1) push down on the end of the lever, and 2) 3/4 of the way from the fulcrum
A. an accelerating charged charged particle or changing magnetic fields
Answer:
The answer is: measuring instrument
Explanation:
The researcher develops test to measure the variables she is interested in. So, they are her measuring instrument.
<h3>
Answer:</h3>
15 ohms
<h3>
Explanation:</h3>
- The effective resistance of resistors is calculated depending on whether the resistors are arranged in series or parallel.
- The effective resistances of resistors in parallel is calculated using the formula;
In this case we are given,
Effective resistance, Rt as 5.0 Ω
First resistor has 10 Ω
second resistor has 30 Ω
We are required to calculate the resistance of the third resistor;
But, effective resistance for parallel arrangement is given by;
Then;
Thus;
Therefore;
Thus, the resistance of the third resistor is 15 ohms
Machines capable of manufacturing exactly the same component time after time,
with exactly the resistance you want, would be very expensive, and so would the
products they turn out. A resistor would cost a dollar instead of a few pennies.
The machine itself, and its output, work within tolerances.
The cheapest mass-produced resistors are guaranteed to be within 20% above
or below the resistance marked on them. And you know what ? For most bench-
work and prototyping, that's usually close enough.