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leva [86]
3 years ago
11

A science class is planning an investigation about gravity and objects on Earth. In three to four sentences, explain the steps t

he class should take to provide data to help them make a conclusion about the effect of gravity on objects of different masses.(4 points)
Biology
1 answer:
Nitella [24]3 years ago
9 0

Answer:

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Explanation:

hope it helps but i can tell your in 5th grade <3

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Aerobic respiration produces _______ as products.
Blababa [14]
The answer is D)carbone dioxide,water and energy
4 0
3 years ago
Which kingdom contains heterotrophs with cell walls of chitin?
kirza4 [7]

It would not be plants, even though it has cell walls. They are not made of chitin. Plants are also not heterotrophic.

Fungi, however, decompose other matter, and have cell walls made of chitin. This would fit the description.

6 0
3 years ago
How many grams are NaCl are required to prepare 200 mL of a 3.10 M solution?
rodikova [14]

The mass (in grams) of NaCl required to prepare the solution is 36.27 g

<h3>What is molarity?</h3>

Molarity is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

<h3>How to determine the mole of NaCl</h3>
  • Volume = 200 mL = 200 / 1000 = 0.2 L
  • Molarity = 3.1 M
  • Mole of NaCl =?

The mole of NaCl in the solution can be obtained as follow:

Molarity = mole / Volume

Cross multiply

Mole = Molarity x Volume

Mole of NaCl = 3.1 × 0.2

Mole of NaCl = 0.62 mole

<h3>How to determine the mass of NaCl </h3>

We can obtain the mass of NaCl needed to prepare the solution as follow:

  • Molar mass of NaCl = 58.5 g/mol
  • Mole of NaCl = 0.62 mole
  • Mass of NaCl = ?

Mole = mass / molar mass

Cross multiply

Mass = mole × molar mass

Mass of NaCl = 0.62 × 58.5

Mass of NaCl = 36.27 g

Learn more about molarity:

brainly.com/question/15370276

#SPJ1

6 0
2 years ago
Can you help me with this please i will give you a branlist and it’s science
atroni [7]

answer is A out of the choices

3 0
3 years ago
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A 4-year-old girl with a brain tumor diagnosed as an astrocytoma is admitted to the pediatric unit. the nurse performs a physica
dmitriy555 [2]
The answer would be: Increased intracranial pressure caused by blood pooling in the head
A tumour will also apply pressure to the surrounding when growing. <span>It can also obstruct the nearby blood vessels, cause the blood or cerebral fluid to be trapped. The trapped fluid will increase the intra cranial pressure because the skull is a closed space organ. </span>
6 0
3 years ago
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