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larisa [96]
3 years ago
8

A force of 5000 newtons is applied to a 1200 kg car at rest. What is its acceleration?

Chemistry
1 answer:
insens350 [35]3 years ago
4 0
The formula for acceleration if rearranged based on the force equation is- force over mass. So 5000/1200=4.16

Your answer is 4 m/s squared.
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Naily [24]

Answer:

The wood is oak.

Explanation:

Given data:

Mass of wood = 70 g

Volume of wood = 103 cm³

Wood is oak = ?

Solution:

We will calculate the density of wood then we will compare it with literature value.

Density = mass/ volume

d = 70 g/ 103 cm³

d = 0.68 g/cm³

The density of oak is 0.59 - 0.90 g/cm³.

So its true, wood is oak.

5 0
3 years ago
Alchemy is a branch of ancient knowledge that states that the only three essential substances in nature are salt, sulfur, and me
Ivanshal [37]

Answer:

It is pseudoscience because there are at least 118 known elements in nature.

Explanation:

Alchemy is an ancient branch of natural philosophy (not used much anymore).

I also just took the test and it's correct.

4 0
3 years ago
Which of the following is a chemical change?
elena-s [515]
Hi I'm in Chemistry too this year,
I believe D is correct because usually physical changes are things like density, color or quantity.
3 0
3 years ago
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Lana71 [14]

When a neutral hydrogen atom loses an electron, a positively-charged particle should remain.

4 0
3 years ago
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Question 11 (10 points)
andrey2020 [161]

Answer:

The correct answer is option a.

Explanation:

When aluminum hydroxide reacts with of nitrous acid it gives of aluminum nitrite and of water.

Al(OH)_3+3HNO_2\rightarrow Al(NO_2)_3+3H_2O

According to above reaction ,when 1 mole of aluminum hydroxide reacts with 3 moles of nitrous acid it gives 1 mole of aluminum nitrite and 3 moles of water.

Hence, the correct answer is option a.

4 0
3 years ago
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