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melomori [17]
3 years ago
13

In 1965, a group of students wore black arm bands to school in protest of American policies in Vietnam. Administrators banned th

e wearing of armbands on school grounds; however, the students wore them again and were suspended. A lawsuit followed, and the case was eventually taken to the Supreme Court.
Physics
1 answer:
Ede4ka [16]3 years ago
4 0

Answer:

protected under students first amendment rights

Explanation:

did the studyisland :)

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The charge on the sphere is monitored as a beam of monochromatic light shines on the sphere. Initially nothing happens. The wave
Solnce55 [7]

Answer:

explanation of this effect  is  the photoelectric effect

Explanation:

Let's describe the process, when light of large wavelength falls, this implies a small energy, according to Planck's equation

           E = h f = \frac{h \ c}{ \lambda}

the energy of the photons is not enough to carry out an electronic transition between two states of the material, when we decrease the wavelength (the energy of the photons increases), the point is reached where the energy of the beam is equal to some energy of a transition, by which the electrons are promoted and since we can see a certain charge, as the atoms are neutral, some electrons must be removed from the material, this is represented in the macroscopic case as the work function of the material, consequently a unbalanced load that is what we can measure.

When we increase the lightning intensity, what we do is that we increase the number of photons and if each photon can remove an electron, by removing the electrons the difference between it and the positive charge (fixed in the nuclei) increases.

We can analyze the interaction of the photon and the electron as a particular collision.

The explanation of this effect was made by Einstein in his explained of the photoelectric effect

8 0
2 years ago
What factors that affect magnetic force
Reil [10]

Answer:

Strong electrical currents in close proximity to the magnet.

Other magnets in close proximity to the magnet.

Neo magnets will corrode in high humidity environments unless they have a protective coating.

Explanation: Heat radiation

7 0
3 years ago
Read 2 more answers
Calculate the volume of this regular solid.
Nataly [62]

Answer:

V = 42.41cm^3

Explanation:

In order to calculate the volume of the solid, you use the following formula:

V=\frac{1}{3}\pi r^2 h

where

r: radius of the circular base of the cone = 3 cm

h: height from the circular base to the peak of the cone = 4.5 cm

You replace the values of r and h in the formula for the volume V:

V=\frac{1}{3}\pi(3cm)^2(4.5)=42.411cm^3\approx42.41cm^3

hence, the volume of the solid is 42.41 cm^3

5 0
2 years ago
1. What coefficients would balance the following equation?
Stolb23 [73]

Answer:

no question matee

Explanation:

3 0
2 years ago
Read 2 more answers
What is the difference between landforms and landmarks
Anika [276]
A land form is a natural feature of earths surface and a land mark is can be man-made or natural and it is used to mark something significant. 
7 0
3 years ago
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