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3 years ago

The north magnetic pole of a compass magnet points towards earth's geographic _ and earth's magnetic _.

Physics

2 answers:

Pavel [41]3 years ago

7 0

The answer is
North pole; south pole
I hope this helps

vazorg [7]3 years ago

7 0

Answer:

The north magnetic pole of a compass magnet points towards earth's geographic <u>NORTH</u> and earth's magnetic <u>SOUTH</u>.

Explanation:

Like poles repel each other and unlike poles attract each other. A magnetic compass is based on this property of magnets. It has magnetic needle and it is known that every magnet has two poles - North pole and south pole. A compass is used find the directions. The needle points towards North. This north is actually the Earth's geographic north and would be magnetic south because south pole will attract north pole of the compass.

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The maximum Compton shift in wavelength occurs when a photon isscattered through 180^\circ .

vlabodo [156]

Answer: $90\°$

Explanation:

The Compton Shift $\Delta \lambda$ in wavelength when the photons are scattered is given by the following equation:

$\Delta \lambda=\lambda_{c}(1-cos\theta)$ (1)

Where:

$\lambda_{c}=2.43(10)^{-12} m$ is a constant whose value is given by $\frac{h}{m_{e}c}$ , being $h$ the Planck constant, $m_{e}$ the mass of the electron and $c$ the speed of light in vacuum.

$\theta)$ the angle between incident phhoton and the scatered photon.

We are told the maximum Compton shift in wavelength occurs when a photon isscattered through $180\°$ :

$\Delta \lambda_{max}=\lambda_{c}(1-cos(180\°))$ (2)

$\Delta \lambda_{max}=\lambda_{c}(1-(-1))$

$\Delta \lambda_{max}=2\lambda_{c}$ (3)

Now, let's find the angle that will produce a fourth of this maximum value found in (3):

$\frac{1}{4}\Delta \lambda_{max}=\frac{1}{4}2\lambda_{c}(1-cos\theta)$ (4)

$\frac{1}{4}\Delta \lambda_{max}=\frac{1}{2}\lambda_{c}(1-cos\theta)$ (5)

If we want $\frac{1}{4}\Delta \lambda_{max}=\frac{1}{2}\lambda_{c}$ , $1-cos\theta$ must be equal to 1:

$1-cos\theta=1$ (6)

Finding $\theta$ :

$1-1=cos\theta$

$0=cos\theta$

$\theta=cos^{-1} (0)$

Finally:

$\theta=90\°$ This is the scattering angle that will produce $\frac{1}{4}\Delta \lambda_{max}$

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3 years ago

Sound is a disturbance that travels through a medium as a

Vinvika [58]

Answer:

Sound waves. Anything that vibrates is producing sound; soundis simply a longitudinal wave passing through a medium via the vibration of particles in themedium. Consider a sound wavetraveling in air

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3 years ago

What is the effective resistance of a car’s starter motor when 150 A flows through it as the car battery applies 12.0 V to the m

QveST [7]

Answer:

From ohms law,

V=IR

R=V/I =12.0/150 =0.08 ohm.

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4 years ago

A hot air balloon exerts a force of 1200 N while

ValentinkaMS [17]

Answer:

Explanation:

For the explained scenario in the free body force diagram definitely the two forces 1200 N and 800 N should present as they are the acting forces

So A & D rules out.

Then you must think of B & C.

You also know that the weight of the load is always acting downwards as that force is generated by gravitational field of Earth. So 800 N should be downwards not upwards. That rules out B.

So answer is C

(Free body diagram is shown in the graph)

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4 years ago

Which describes the reaction of a substance to form one or more new substances?

kifflom [539]

A chemical change is the correct

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3 years ago

The north magnetic pole of a compass magnet points towards earth's geographic _____ and earth's magnetic _____.

The north magnetic pole of a compass magnet points towards earth's geographic _ and earth's magnetic _.