45mph is the answer if you do the math right
Answer:
c: long and thin resistor.
Explanation:
The resistance of a resistor is given by:
R = ρ*L/A
where:
R = resistance
ρ = resistivity (depends on the material)
L = length of the material
A = cross-sectional area of the material
We can see that the length is on the numerator, which means that if we increase the length, then the resistance is increased.
We also can see that the cross-sectional area is on the denominator, then if we increase the area (for example, with a ticker resistor) the resistance decreases.
Then if we want to maximize the resistance, we need to have a long and thin resistor, so the correct answer is c.
Answer:
Explanation:
average speed more than 25.0m/s.
Answer:
Explanation:
Given:
- spring constant of the spring attached to the input piston,
- mass subjected to the output plunger,
<u>Now, the force due to the mass:</u>
<u>Compression in Spring:</u>
or
