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.
Answer:
224 J
Explanation:
Step one:
given data
Force applied = 22.4 N
distance = 10 meters
<u>Required:</u>
the work done
Step two:
The expression for the work done is
WD= force*distance
substitute
WD= 22.4*10
WD= 224 J
Answer:its D
Explanation:
i did the test and got it right
The upward force exerted on the board by the support is mathematically given as
Fu= 764.8 N
<h3>What is the upward force exerted on the board by the support?</h3>
Generally, the equation for is mathematically given as
Considering that the Net Force on the system is null
The weight of the children plus the weight of the board equals the upward force imposed on the support.
The upward force
Fu= 440 + 272 + 52.8 N
Fu= 764.8 N
In conclusion, he upward force exerted on the board by the support
Fu= 764.8 N
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