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malfutka [58]
4 years ago
10

Energy can be transferred from one medium to another through ____.

Physics
2 answers:
Masja [62]4 years ago
7 0
A. Vibrations. Lots of healing energy is transferred this way. See: Reiki
pshichka [43]4 years ago
7 0

Answer:

Vibration or vibe.

Explanation:

I just did the k12 test.

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An electric fan is running on HIGH. After the LOW button is pressed, the angular speed of the fan decreases to 84.7 rad/s in 2.9
ale4655 [162]

The initial angular speed of the fan will be 55.0 rad/sec. The angular speed of the fan decreases to 84.7 rad/s in 2.96 s.

<h3>What is angular acceleration?</h3>

Angular acceleration is defined as the pace of change of angular velocity with reference to time.

Given data;

Final angular speed,\rm \omega_f = 84.7 rad/s

Initial angular speed, \rm \omega_i = ?

Time period,t= 2.96 s

Angular deceleration = 47.2 rad/s²

\rm \alpha =\frac{\omega_f-\omega_i}{t} \\\\\rm 47.2 =\frac{84.7-\omega_i}{2.96} \\\\ \omega_i = 55.0  \ rad/sec

Hence the initial angular speed of the fan will be 55.0 rad/sec.

To know more about angular acceleration refer to the link ;

brainly.com/question/408236

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7 0
2 years ago
Newton’s cradle is a contraption where metal balls hang from a frame. When one ball is pulled and released, the collision causes
Marysya12 [62]

Answer: A

Explanation: the principle of friction with swinging and colliding balls.

6 0
2 years ago
Two passenger trains are passing each other on adjacent tracks. train a is moving east with a speed of 13 m/s, and train b is tr
alukav5142 [94]

Since the two trains are passing in opposite directions, so this means that their relative velocities will be the sum of the two trains that is: 

<span>
relative velocity = (13 + 28) = 41m/s</span>

<span>
a. The passengers aboard on train B will see that train A is moving at 41m/sec due east</span>

 

<span>b. The passengers aboard on train A will see that train B is moving at 41m/sec due west</span>

7 0
4 years ago
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Audible wavelengths. the range of audible frequencies is from about 20.0 hz to 2.00×104 hz . what is range of the wavelengths of
BabaBlast [244]
Given:
f1 = 20 Hz 
f2 = 20000 Hz
speed of sound at 20 degrees celcius = 343 m/s

Solution:

for f1 = 20 Hz,

Using the equation:

lambda = speed of sound / f1 = 343 / 20 = 17.15 m 

For f2: 

lambda = speed of sound / f2 = 343 / 20000 = 0.01775 m

Therefore the wavelength range of audible sound in air would be 17.15 m to 0.01775 m.
6 0
3 years ago
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Which of the following is an example of a homogeneous mixture A. Bronze B. Zinc C. Copper D. Sand
dem82 [27]
B.) Zinc
(I'm trying to get the right answer without Google)
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