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NeX [460]
3 years ago
8

This image shows a stream of positively charged particles being directed at gold foil. The positively charged particles are call

ed "alpha particles” and each one is like a nucleus without any electrons.
A laser source is shining red light onto a surface. Some bounces back at anges Some go straight through and some go through at an angle in both directions from the original path.
What is the best explanation for why a particle is striking point X?

a.) Alpha particles are mostly empty space, so they move in random directions, and one of these alpha particles can strike point X.
b.) The gold atoms contain negative electrons, so when alpha particles strike the gold they keep moving but in various directions.
c.) If an alpha particle hits the gold foil, a gold nucleus splits and a particle from it flies out at point X.
d.) When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.

Biology
2 answers:
maksim [4K]3 years ago
7 0

Answer:

D.) When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.

Explanation:

mixer [17]3 years ago
4 0

Answer:

D.

Explanation:

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What advantages did using the elodea stalk have over using its leaf or leaves?
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In an experiment, using the elodea stalk, you are able to expose more underlying tissue and the process can be executed more quickly and it's easy to replicate the natural position for a more realistic result.
hope this helps
8 0
3 years ago
When trying to determine the rate of cellular respiration (an aerobic process), why is oxygen measured and not carbon dioxide
dusya [7]

Since both aerobic and anaerobic processes can result in the production of CO2, we couldn't be certain that cellular respiration was occurring.

Carbon dioxide:

Carbon dioxide is released during cellular respiration as a waste product. Cells that are capable of photosynthesis can utilize this carbon dioxide to create new carbohydrates. Additionally, oxygen gas is necessary to act as an electron acceptor during the process of cellular respiration.

There are two types of cellular respiration: aerobic (occurring when oxygen is present) and anaerobic (in absence of oxygen).

Now, carbon dioxide is emitted as a byproduct in both types of respiration.

Therefore, determining the rate of aerobic cellular respiration by measuring the amount of carbon dioxide emitted is impossible.

Therefore, to obtain the precise rate, we monitor oxygen rather than carbon dioxide.

Therefore, the correct response is that CO2 is created during both aerobic and anaerobic processes; we were unable to confirm if cellular respiration was occurring.

Learn more about carbon dioxide here brainly.com/question/20478740

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7 0
2 years ago
List by size: gene, cell, chromosome, atom, nucleus, base subunit, nucleotide
Makovka662 [10]
Cell nucleus chromosome gene nucleotide base subunit atom
4 0
3 years ago
Does heating a cup of water allow it to dissolve more sugar? The temperature of the water is measured in degrees Centigrade. The
kifflom [539]

Answer:

In this, the controlled variables are stirring and type of sugar. As more stirring might elevate the amount of sugar that dissolves, and different kind of sugars might dissolve in distinct concentrations. So, in order to make sure a fair test, there is a need to keep these variables similar for each cup of water.

Explanation:

7 0
2 years ago
Which part of the brain is associated with conscious thought
hichkok12 [17]

Answer:

Cerebral cortex of the Cerebrum

Explanation:

The body directs our body's internal functions. These functions are made possible by four major regions of the brain viz: The Cerebrum, Diencephalon, Cerebellum and Brain stem.

The Cerebrum is the largest brain structure, making up most of the total brain, and a part of the forebrain. The cerebrum's prominent outer portion, the cerebral cortex, not only processes sensory and motor information but also enables CONSCIOUSNESS (our ability to consider ourselves and the outside world), thoughts, emotion, reasoning and memory.

The cerebral cortex is composed of the right and left hemispheres joined by the corpus callosum. Each cerebral hemisphere can be subdivided into four lobes (Frontal, Parietal, Temporal, and Occipital) associated with different functions.

4 0
2 years ago
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