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Troyanec [42]
4 years ago
10

Answer question number 78

Physics
1 answer:
madreJ [45]4 years ago
4 0
The two ends (the ends of the north and south poles) are the most powerful parts of the magnet. They have the strongest magnetic force. As you go down the magnet (closer to the center) the magnet loses its magnetism strength.
(hope it helps ^_^)
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A microphone is attaced to a spring that is suspended from
kirill115 [55]

To solve this problem we will apply the concept related to the amplitude and the Doppler effect. The difference between the maximum and minimum frequency detected by the microphone would be given by the mathematical function

f_{max} - f_{min} = 2 f_s (\frac{v_0}{v})

Here,

f_s= Source Frequency

v_0 = Speed of microphone

v = Speed sound

f_{max} - f_{min} = 2 f_s (\frac{v_0}{v})

Maximum speed of the microphone is

v_0 = f_{max} - f_{min} * \frac{v}{2f_s}

v_0= \frac{2.1Hz*343m/s}{2*440Hz}

v_0= 0.8185 m/s

Now the amplitude is

A = \frac{v_0}{2\pi/T}

Here T means the Period, then

A= \frac{0.8185 * 2.0}{2\pi}

A= 0.2605m

Therefore the amplitude of the simple harmonic motion is 0.2605m

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4 years ago
Unlike velocity, speed is scalar, which means it is described by ______<br> only.
natali 33 [55]

Hi there,

Unlike velocity,speed is scalar,which means it is described by MAGNITUDE only.

8 0
3 years ago
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An airplane flying horizontally at a constant speed of 350 km/h over level ground releases a bundle of food supplies. Ignore the
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Answer:

it is 20.62

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What foods are recommended for pregnant woman?
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Answer:

Vagetagble, fruits,fresh milk and juice vitamins c

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A boy fires a table tennis launcher. Briefly describe the forces and impulses on the launcher and the ball. Explain which has mo
iren2701 [21]
The forces are equal because of Force = mass x acceleration. The launcher has a greater mass therefore the acceleration is less. The ball has a greater acceleration and less mass, the ball is faster. ( m delta t) Impulse = mass x velocity = momentum (m delta v) assuming the launcher has more mass, the ball has more momentum.

{My friend helped me with this one}
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