A) a piece of wire
Explanation:
Radhika's mother is simply replacing piece of wire.
A fuse is made up of a thin strip of wire that melts when there is an over current.
- A fuse is electrical safety device in circuit that protects appliances from over current.
- The wire in a fuse has a high resistance and low melting point.
- When current is high, the resistance of the wire causes it to melt and break the circuit.
- In this way, appliances are protected from the harmful effect of the surge in voltage.
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Assuming our "closed tube" is closed at only one end, then
<span> v = fλ = f*4L/n
</span><span> where "n" is the harmonic number. So
</span><span> L = nv / 4f = n*346m/s / 4*256Hz = n*0.38 m
</span> <span>Since the only option in your list that is an integer multiple of 0.38 m is 1.35 m
</span><span> I'd say that we're hearing the fourth harmonic.
answer is
</span><span>A. 1.35 m</span><span>
</span>
Answer:
The Troposphere is the lowermost portion of Earth’s atmosphere. It is the densest layer of the atmosphere and contains approximately 75 percent of the mass of the atmosphere and almost all the water vapor and aerosol. The troposphere extends from the Earth’s surface up to the tropopause where the stratosphere begins.
Explanation:
There's the acceleration of the car that provides a force and the normal force of the seat cushion which pushes upwards against the passenger
