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telo118 [61]
2 years ago
7

Layne conducted an investigation using objects and light. She determined that light behaves differently depending on the medium.

Which statement correctly shows her understanding of light after the investigation?
A: A prism can bend light into the visible spectrum.
B: Light does not change direction when meeting matter.
C: Light does not travel from one place to another.
D: The moon produces its own light as seen from Earth.
Physics
1 answer:
Crazy boy [7]2 years ago
6 0

i think the answer is a hope this helped
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Which element could provide one atom to make an ionic bond with nitrogen?​
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Answer:

boron

aluminum

gallium

indium

thallium

Explanation:

Any of these could work. Nitrogen has 5 valence electrons so you just needed to pick an element that has 3 valence electrons that nitrogen could borrow. This periodic table shows valence electron counts:

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A student was traveling to see his grandmother who lives 15 miles north oh his home he started from rest and maintained a pace o
N76 [4]

Explanation:

Given parameters:

Distance  = 15miles north = 24140.2m

Initial velocity  = 0m/s

Final velocity  = 4m/s

Unknown:

Speed, velocity and acceleration = ?

Solution:

The speed is the distance divide by time. It is a scalar quantity and has no directional attribute.

  Speed  = \frac{distance }{time}  

  The speed of the student is 4m/s

Velocity is the displacement divided by time. It is a vector quantity which specifies the direction and magnitude;

    Velocity  = \frac{displacement}{time}  

   The velocity of the student is 4m/s due north

Acceleration is the change in velocity with time;

     To find the acceleration, we use

      v²  = u² + 2as

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance

     4² = 0² + 2x a x 24140.2

       a  = \frac{16}{2 x 24140.2}  = 0.00033m/s²

3 0
2 years ago
Which best explains why a wood-burning fireplace does not represent a closed system? A. because a fire requires oxygen from the
sweet [91]
Answer is A of course lol Fire needs oxygen as an essential fuel to burn.
7 0
3 years ago
Positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials are
BARSIC [14]

Answer:

The answer to your question is Alpha particles.

Explanation: An electron released by a radioactive nucleus that causes a neutron to change into a proton is called a beta particle.

6 0
2 years ago
How does a sound wave transfer energy to your ears ?
horrorfan [7]

Answer:

A. Particles in air move in circles as the wave moves forward.

B. Particles in air move forward but not backward as the wave moves

forward.

C. Particles in air move up and down as the wave moves forward.

✔ D. Particles in air move forward and backward as the wave moves

forward.

Explanation:

The waves transfer energy from the source of the sound, e.g. a drum, to its surroundings. Your ear detects sound waves when vibrating air particles cause your ear drum to vibrate. The bigger the vibrations the louder the sound.

7 0
3 years ago
Read 2 more answers
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