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Vesna [10]
3 years ago
12

Which two forms of energy does a hairdryer convert electric energy into? A.)chemical energy

Physics
2 answers:
Ne4ueva [31]3 years ago
3 0
D, because the hairdryer uses a fan
E, because it produces heat
Leni [432]3 years ago
3 0
<h3><u>Answer;</u></h3>

<em>D.) motion energy  </em>

<em>E.) radiant energy</em>

<h3><u>Explanation;</u></h3>
  • <em><u>Energy is the ability to do work. From the law of conservation of energy, energy can not be created nor destroyed by may be transformed from one form to another.</u></em> Instruments or devices which converts energy from one form to another are called transducers.
  • <em><u>Hair dryer is an example of a transducer which converts electrical energy to either thermal or heat energy and also to kinetic energy. </u></em>Electrical energy entering the hair dryer is converted to kinetic energy or motion energy as the small electric motor in the dryer spins a fan blade.
  • Additionally,<em><u> electrical energy is also converted into heat or thermal energy in a grid of wire that heats up.</u></em> The fan pushes air across the hot wires, and hot air blows out the nozzle of the hair dryer.
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Plzzz answer this question correctly
tekilochka [14]

Answer:

changing the direction in which a force is exerted

8 0
3 years ago
What is the speed of sound at the atmospheric temperature of 30°C?
12345 [234]

The parcel will undergo projectile motion, which means that it will have motion in both the horizontal and vertical direction.


First, we determine how long the parcel will fall using:


s = ut + 1/2 at²


where s will be the height, u is the initial vertical velocity of the parcel (0), t is the time of fall and a is the acceleration due to gravity.


5.5 = (0)(t) + 1/2 (9.81)(t)²

t = 1.06 seconds



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4 0
3 years ago
Read 2 more answers
A 55.2 kg softball player moving 3.11 m/s slides across dirt with uk=0.310. How far does she slide before coming to a stop​
hoa [83]

Refer to the attachment

5 0
3 years ago
The distance between two consecutive nodesof a standing wave is 20.9cm.Thehandgen-erating the pulses moves up and down throughac
irina1246 [14]

Answer:

Velocity, v = 0.239 m/s

Explanation:

Given that,

The distance between two consecutive nodes of a standing wave is 20.9 cm = 0.209 m

The hand generating the pulses moves up and down through a complete cycle 2.57 times every 4.47 s.

For a standing wave, the distance between two consecutive nodes is equal to half of the wavelength.

\dfrac{\lambda}{2}=0.209\ m\\\\\lambda=0.418\ m

Frequency is number of cycles per unit time.

f=\dfrac{2.57}{4.47}\\\\f=0.574\ Hz

Now we can find the velocity of the wave.

Velocity = frequency × wavelength

v = 0.574 × 0.418

v = 0.239 m/s

So, the velocity of the wave is 0.239 m/s.

4 0
3 years ago
A sound wave has a speed of 345 m/s and a wavelength of 4.15 meters. What is the frequency of this wave?
Debora [2.8K]

Answer:

83 hertz

OPTION A

Explanation:

wavelength =  \frac{speed}{frequency}

Given

wavelength=4.15m

speed=345 m/s

frequency =  \frac{speed}{wavelength} =  \frac{345}{4.15}

frequency = 83 \: hertz

I hope it helped you

5 0
2 years ago
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