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2 years ago

The source of heat for a (an) _____ system is electricity

Physics

1 answer:

marshall27 [118]2 years ago

3 0

Electric Heating systems use electricity as a source of heat.

Explanation: 

Each heater consists of an electric resistor, which the heating element in it. The process involved is Joule Heating. It is the phenomenon in which, passage of electric current produces heat. Heat is generated when the electrons from the current and the positive ions of the conductor start interaction.

The presence of voltage difference makes an electric fields, which in turn accelerates the charges present in the conductors. When they collide with ions of conductor, heat gets generated, and emitted out, which we use for heating purposes.

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How many satellites are used for GPS ?

noname [10]

Around 27 satelites is used for GPS technology

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3 years ago

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An organ pipe open at both ends has a length of 0.80 m. If the velocity of sound in air is 340 m/s, what is the frequency of the

bazaltina [42]

Answer:

the frequency of the second harmonic of the pipe is 425 Hz

Explanation:

Given;

length of the open pipe, L = 0.8 m

velocity of sound, v = 340 m/s

The wavelength of the second harmonic is calculated as follows;

L = A ---> N + N--->N + N--->A

where;

L is the length of the pipe in the second harmonic

A represents antinode of the wave

N represents the node of the wave

$L = \frac{\lambda}{4} + \frac{\lambda}{2} + \frac{\lambda}{4} \\\\L = \lambda$

The frequency is calculated as follows;

$F_1 = \frac{V}{\lambda} = \frac{340}{0.8} = 425 \ Hz$

Therefore, the frequency of the second harmonic of the pipe is 425 Hz.

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2 years ago

(3mrks) physics solar panel question

shtirl [24]

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Eco friendly excluding panel production.
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2 years ago

What side of the worm faces up when placed in the tray when dissection?

Lelechka [254]

The side of the worm that faces up when placed in the tray for dissection is the smoother side.

You can observe the organs of these tiny creatures by dissecting a preserved earthworm. In dissecting a worm, lay the worm on your dissecting tray with its dorsal side facing up.

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3 years ago

Two balls of unequal mass are hung from two springs that are not identical. The springs stretch the same distance as the two sys

IRISSAK [1]

Answer:

b) Springs oscillate with the same frequency,

Explanation:

expression for frequency of vibration of mass hanging from a spring is given as follows

f = $\frac{1}{2\pi} \times \sqrt{\frac{k}{m} }$