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natulia [17]
3 years ago
15

Help me, please. I Don't get my homework.

Chemistry
2 answers:
Lisa [10]3 years ago
7 0
We’d have to be very careful because if we had our skeletons on the outside it’d be very easy to injure ourselves
Serggg [28]3 years ago
5 0

Answer:

nightmare 2.0

Explanation:

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An 80 kg long jumper in flight accelerates at a rate of 10 m/s^2. What is the force of the long jumper
Katarina [22]

Answer:

F = 800 N

Explanation:

Given data:

Mass = 80 Kg

Acceleration = 10 m/s²

Force = ?

Solution:

Formula:

<em>F = m × a </em>

F = force

m = mass

a = acceleration

Now we will put the values in formula:

<em>F = m × a </em>

F = 80 kg <em>× </em>10 m/s²

F = 800 kg.m/s²

kg.m/s² = N

F = 800 N

6 0
3 years ago
Balancing chemical equations
kolbaska11 [484]

Answer:

2B2 + 3O2 → 2B2O3

Explanation:

Balance The Equation: B2 + O2 = B2O3

1. Label Each Compound With a Variable

  aB2 + bO2 = cB2O3

2. Create a System of Equations, One Per Element

  B: 2a + 0b = 2c

  O: 0a + 2b = 3c

3. Solve For All Variables (using substitution, gauss elimination, or a calculator)

  a = 2

  b = 3

  c = 2

4. Substitute Coefficients and Verify Result

  2B2 + 3O2 = 2B2O3

      L R

  B: 4 4 ✔️

  O: 6 6 ✔️

hope this helps!

7 0
2 years ago
Explain the difference between rotation and revolution.
aleksandrvk [35]

Answer:

Rotation: spins on its axis

Revolution: travels around another object

Explanation:

The Earth rotates on its axis, while it revolves around the sun.

The moon revolves around the Earth.

8 0
2 years ago
Read 2 more answers
How do crickets make sound from your their leg right?
Reptile [31]
The bottom of a cricket wing is covered with teeth-like ridges that make<span> it rough. The upper surface of the wing is like a scraper. When </span>crickets<span> rub the upper and lower parts of their wings together, they create a chirping</span>sound<span> called “stridulating."</span>
5 0
3 years ago
Read 2 more answers
If a(n) __________ is applied, the equilibrium shifts to relieve this change in conditions.
elixir [45]

Answer:

the answer is D. stress

If a stress is applied, the equilibrium shifts to relieve this change in conditions.

6 0
2 years ago
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