Answer:
No
Explanation:
No, overload heaters do not open to break the circuit when their current limit is reached. These are safety device to prevent over heating.
Thermal overload relays in a motor are intended to protect the conductors (windings). Such safety devices are made to maintain the current flow in a circuit at a safety level so as to avoid overheating of the circuitry conductors. And the excess of current is often called as over current.
I'm not sure of the numbers sense I dont have a calculator right now. The formula is 1/2*M*V^2.
.05 cm far must the lens be moved to change the focus of the camera from a person 25 m away to one that is 4.0 m away
The focal length of a thin lens in air is the separation between its major foci, also known as focal points, and its center. The focal length is the distance at which a beam of collimated light will be concentrated to a single spot for a converging lens (for instance, a convex lens).
If v is the image distance in the first scenario
1 / v - 1 / -25 = 1 / .05
1 / v = 1 / .05 - 1 / 25
= 20 - .04 = 19.96
v = .0501 m = 5.01 cm
The second instance
u = 4 ,
1 / v - 1 / - 4 = 1 / .05
1 / v = 20 - 1 / 4 = 19.75
v = .0506 = 5.06 cm
Therefore, the lens must be advanced by 5.06 - 5.01 =.05 cm.
Learn more about lens here brainly.com/question/17086993
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Answer:
No they just orbit the sun
Explanation:
Answer:
is the attraction or repulsion between charged particles
