Answer:
The formula i use is called, Product over Sum. Which means it is figured by their multiplied resistances divided by their sum. It is applied by pairs of known resistances. Starting with 20 and 30 Ohms, 600 is divided by 50. Using a quick mental calculation, the first pair has a resistance of 12 Ohms. Then, do that with 12 Ohms and 10 Ohms. 120 Ohms divided by 22. The answer is, about 5.5 Ohms. By this interesting development, we are reminded that resistances in parallel are effectively never more than the least one.
The students decide to assemble a convenient experiment and will run one amp through them all in parallel and measure their voltage. Watching the Amperage gauge on their teacher’s power supply. As one begins to turn it up to an Amp, another is watching its voltage till an Amp is perfectly applied. But as they carefully do that, watching the Amp gauge, another screams, their 10 Ohm resistor turns black and smokes as they were only pumping out 2 or 3 tenths of an Amp. What happened? What did they need, to make this simple experiment not so embarass-king?
Buy room air freshener?
Wavelength = (speed) / (frequency)
= (30 m/s) / (60/sec) =
= 0.5 meter .
When temperature decreases the atoms(or molecules) within the substance begin to slow down.
Answer:
Explanation:
The five steps used for solving design problems are:
1. Define the problem
2. Gather pertinent information
3. Generate multiple solutions
4. Analyze and select a solution
5. Test and implement the solution
1. The first step of engineering design is to identify the problem.
2. The inputs to this activity include the research the problem, perhaps supplemented with evaluate possible solutions, both produced during product design.
3. In terms of the software life cycle, engineering design occurs during the protype creation and selection phase.
4. A good way to engage the problem during this activity is to test and evaluate the protype, which produces the main outputs of this activity.
Firstly SI units must be used so 1 mile = 1069,344 metres. Thus 1.5 miles = 2414,016 m
Now SI unit for time is seconds so 0.5 hours = 1800 seconds
Now speed is equal to distance over time thus 2414,016 ÷ 1800 = 1,34
The unit for this is metres per second = m.s^-1
Now speed is a scalar quantity which has no direction but has magnitude thus the speed is 1,34 m.s^-1
And velocity is a vector quantity thus it has both magnitude and direction thus the velocity us 1,34 m.s^-1, south
Note that speed is equal to velocity the only difference is that one must have direction and one must not have direction, due to the scalar and vector property l.