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Fiesta28 [93]
4 years ago
15

List the magnetic properties of iron​

Physics
1 answer:
True [87]4 years ago
4 0

Answer:As with iron, the magnetic properties of these elements depends on their crystal structure and whether the metal is below its Curie point. α-iron, cobalt, and nickel are ferromagnetic, while γ-iron, manganese, and chromium are antiferromagnetic. Lithium gas is magnetic when cooled below 1 kelvin.

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What will happen to the pitch of a sound as that sound’s source approaches an observer? Explain why this happens, based on what
I am Lyosha [343]

The pitch of a sound is decreased, when a sound source approaches the observer.

<u>Explanation:</u>

Pitch is nothing but it is a property that helps to determine whether the sound is high or low. Doppler effect helps to understand this concept easily. The pitch of the sound is mainly calculated based on the frequency of the sound wave arose from the sound source.

As the wellspring of sound waves moves toward an audience, the sound waves draw nearer together, expanding their recurrence and the pitch of the sound.

8 0
4 years ago
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What elements are formed only during the supernova phase of large or extra-large madd star?
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Elements heavier than iron are formed in a supernova, the heavier elements up to uranium appear when a star with needed mass collapses in a supernova event some times referred too trans-iron elements.
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3 years ago
Tether ball is a game children play in which a ball hangs from a rope attached to the top of a tall pole. The children hit the b
Murljashka [212]

Answer:

a_total = 14.022 m/s²

Explanation:

The total acceleration of a uniform circular motion is given by the following formula:

a=\sqrt{a_c^2+a_T^2}         (1)

ac: centripetal acceleration

aT: tangential acceleration

Then, you first calculate the centripetal acceleration by using the following formula:    

a_c=r\omega^2

r: radius of the circular trajectory = 2.0m

w: final angular velocity  of the ball = 7.0 rad/s

a_c=(2.0m)(7.0rad/s)^2=14.0\frac{m}{s^2}        

Next, you calculate the tangential acceleration. aT is calculate by using:

a_T=r\alpha    (2)

α: angular acceleration

The angular acceleration is:

\alpha=\frac{\omega_o-\omega}{t}

wo: initial angular velocity = 13 rad/s

t: time = 15 s

Then, you use the expression for the angular acceleration in the equation (1) and solve for aT:

a_T=r(\frac{\omega_o-\omega}{t})=(2.0m)(\frac{7.0rad/s-13.0rad/s}{15s})=-0.8\frac{m}{s^2}

Finally, you replace the values of aT and ac in the equation (1), in order to calculate the total acceleration:

a=\sqrt{(14.0m/s^2)^2+(-0.8m/^2)^2}=14.022\frac{m}{s^2}

The total acceleration of the ball is 14.022 m/s²

5 0
3 years ago
Please help!! The graph in the figure shows the position of a particle as it travels along the x-axis. What is the magnitude of
Bogdan [553]

Answer:

1.3 m/s

Explanation:

average speed = total distance/ total time

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