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kirza4 [7]
3 years ago
10

Aliyah marks a line on her driveway with a piece of chalk and another line 50ft away Then she stands with both feet at the line

and runs to the opposite line While she runs she times how long it takes her to get to the other line What is she trying to find with the distance and time
Chemistry
1 answer:
Mariulka [41]3 years ago
3 0

Answer:

Speed

Explanation:

Aliyah must have been trying to find her speed.

The speed is a measure of how fast an object or a body is and it is calculated by finding the ratio of distance with time. Mathematically,

  speed = \frac{distance}{time} with a unit of m/s.

<em>Hence, with the distance measured on the ground and Aliyah trying to find the time it will take her to cover the distance while running, she must have been trying to find how fast she can run, that is, speed. </em>

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Answer:

1 melting

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3 years ago
How many atoms are in a 176 gram sample of nickel
uysha [10]
The answer is 1.8*10^24.

6 0
3 years ago
For each of the following, give the sublevel designation, the allowable ml values, and the number of orbitals:
Paraphin [41]

Answer:

(a) n = 2, l = 0 ⇒ sublevel <em>s, </em>⇒ ml = 0, number of orbitals = 1

(b) n = 3, l = 2 ⇒ sublevel <em>d, </em>⇒ ml = 0, ±1, ±2, number of orbitals = 5

(c) n = 5, l = 1 ⇒ sublevel <em>p, </em>⇒ ml = 0, ±1, number of orbitals = 3

Explanation:

The rules for electron quantum numbers are:

1. Shell number, 1 ≤ n,

2. Subshell number, 0 ≤ l ≤ n − 1, from <em>s, p, d, f, g, h...</em>

3. Orbital energy shift, -l ≤ ml ≤ l

4. Spin, either -1/2 or +1/2

In our case

(a) n = 2, l = 0 ⇒ sublevel <em>s</em>

-l ≤ ml ≤ l ⇒ ml = 0, number of orbitals = 1

(b) n = 3, l = 2 ⇒ sublevel <em>d</em>

-l ≤ ml ≤ l ⇒ ml = 0, ±1, ±2, number of orbitals = 5

(c) n = 5, l = 1 ⇒ sublevel <em>p</em>

-l ≤ ml ≤ l ⇒ ml = 0, ±1, number of orbitals = 3

5 0
3 years ago
Someone plz help me :(
igomit [66]

Answer:

B and A.

Explanation:

Many of the great scientists were religious. But the answer is not D.

A scientist may have strong opinions. That was certainly true of Newton. Most of the time he was right. Still the answer is not C. Science requires an open mind.

The answer is between A and B. Many discoveries were made looking at the natural world. That may provide the inspiration. But I don't think it is the answer. I'm going to say A

B is the other answer. Between A and B many scientific truths have been discovered.

6 0
3 years ago
3) Explain why elements in the same group<br>similar properties​
Alik [6]

Answer:

The elements of the same group have the same number of valence electrons, that is why they have similar properties

5 0
3 years ago
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