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Elenna [48]
2 years ago
4

In albuquerque, we live approximately 5,500 feet above sea level, which means the normal atmospheric pressure is less than 1 atm

. in albuquerque, will water freeze at a lower temperature or a higher temperature than at 1 atmosphere? _________ will water boil at a higher or lower temperature, than at 1 atmosphere? ________
Physics
1 answer:
Masteriza [31]2 years ago
4 0
<span>The freezing point would be higher due to the lower vapor pressure. Additionally, the boiling point of water at the higher elevation and lower atmospheric pressure would decrease. Less vapor pressure allows the water molecules to escape into the atmosphere with less energy than at sea level.</span>
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As you know, loudspeakers are used for communication at sporting events, and in schools or supermarkets. Research loudspeakers o
Ivahew [28]

Sound is invisible, but sometimes we can feel it. when a kettle-drum is thumped with a stick that time the tight drum skin moving up and down very quickly for some time and then it pumped sound waves into the air. Loudspeakers also work in a similar manner.

components of a speaker:

Electromagnet

In order to translate an electrical signal into an audible sound, an electromagnet is used in looudspeakers

 Suspension

suspension is used to  center the voice coil in the gap of the magnet and it exerts a restoring force to keep it there. suspension is used to limits the maximum mechanical excursion of the diaphragm and voice coil.

voice Coil

Voice coil is a coil of wire which is attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.

Cone

In a  loudspeaker, a  thin, semi-rigid membrane attached to the voice coil, which moves in a magnetic gap due to which it vibrates  and produced sound. It is known as diaphragm and It can also be called a cone, though not all speaker diaphragms are cone-shaped.

Surround

surround is also known as front suspension. surround is used to join the cone to the chassis. Together with the suspension it controls the cone excursion, and it is also used to  determine how energy which is  travelling through the cone is absorbed, and how the speaker limits when it reaches the ends of its travel.

Dustcap

dustcap is used to protect the voice coil from dust and dirt. It is a part of the cone.

How speaker work

The outer part of the cone is fastened to the outer part of the loudspeaker's circular metal rim. The inner part is fixed to  voice coil that sits just in front of a permanent magnet . When loudspeaker is hooked up to a stereo, electrical signals feed through the speaker cables into the coil. It will convert the coil into an electromagnet magnet . when electricity flows back and forth in the cables, the electromagnet either repels or attract the permanent magnet. This moves the coil back and forth, and it pull and push the loudspeaker cone. Like a drum skin vibrating back and forth, the moving cone pumps sounds out into the air.In this way loudspeakers works.

4 0
2 years ago
The number that is used to show the value of one currency compared to another is called the __________. A. trade rate B. currenc
Brrunno [24]

Answer:

c is the answer

Explanation:

8 0
2 years ago
A circuit is supplied with 60 VDC and contains two series resistors with values of 100 and 400 . What is the total current in th
scoundrel [369]

When resistors are connected in series, they act like
a single resistor whose resistance is their sum. 

100 ohms and 400 ohms, connected in series, look like
a single resistor of 500 ohms.

           Current = (voltage) / (resistance)

                        = (60 volts) / (500 ohms) = 0.12 A.
________________________
<span>
Current is measured by connecting a meter in series
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6 0
2 years ago
A student throws a 0.22 kg rock horizontally at 20.0 m/s from 10.0 m above the ground. Find the initial kinetic energy of the ro
LekaFEV [45]

Answer:

44J

Explanation:

Given parameters:

Mass of rock  = 0.22kg

Initial velocity  = 20m/s

Distance moved  = 10m

Unknown:

Initial kinetic energy of the rock  = ?

Solution:

To solve this problem, we need to understand that kinetic energy is the energy due to the motion of a body.

It is mathematically expressed as;

     Kinetic energy  = \frac{1}{2} m v²

m is the mass

v is the velocity

   Kinetic energy  =  \frac{1}{2} x 0.22 x 20²   = 44J

6 0
1 year ago
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