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gtnhenbr [62]
3 years ago
6

Hunter wants to measure the weight of a dumbbell. He should

Chemistry
2 answers:
xxTIMURxx [149]3 years ago
8 0

D cuz, a scale will measure the weight and will give you a weight measurement!

Dominik [7]3 years ago
6 0

Answer:

(D) Use a scale and record the weight in N

Explanation:

Let's explore the various options presented.

(A) Use a beaker with water and record the weight in N - NO

A beaker cannot give you a measure of weight.

(B) Use a scale and record the weight in cm³ - NO

Although the scale is the right instrument to use, you cannot record a weight in cm³, that's a unit of volume.

(C) Use a beaker with water and record the weight in cm³ - NO

Using a beaker with water will give you a measure in cm³ but it will be a volume, not a weight.

(D) Use a scale and record the weight in N - YES

YES, a scale will measure the weight and will give you a weight measurement!

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The manger is confers I think it will be 4500 but try a different one if it is wrong good luck on the problem hope you get it right ?
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3 years ago
Radium-223 has a half-life of 11.0 days. How much of a 60.0 mg sample of Ra-223 is still active after 44.0 days?
Airida [17]

Answer:

The answer to your question is 3.75 mg

Explanation:

Data

Radium-223

half-life = 11 days

mass = 60 mg

total time = 44 days

Process

1.- Draw a chart to start the calculation

                Mass           Number of days      Half-lives

                60 mg                    0                           0

                30 mg                    11                            1

                 15 mg                    11                            2

                7.5 mg                    11                           3

               3.75 mg                   11                           4

        Total number of days   44

       Mass active after 44 days = 3.75 mg                                      

           

6 0
4 years ago
QUESTION 1
Andrews [41]

Answer:

It appears all of them are correct
Smaller drops will scatter around while maintaining their shape
Larger drop will spread stick to the surface.
and drops close together will join to form on gigantic sphere(but not perfect sphere)
and if they are in the sun, they'll eventually evaporate

Explanation:

7 0
2 years ago
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Digital offers better clarity,but analog gives you richer quality
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3 years ago
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Which compound can be used to preserve biological specimens? A central C is double bonded to an O, and single bonded to 2 H. A c
Darina [25.2K]

Answer:

A central C is double bonded to an O, and single bonded to 2 H

Explanation:

Methanal, also known as formaldehyde, is a chemical compound used to preserve dead biological specimens for further study. It is called formalin when in a solution and it helps keep specimens in a fresh state by hardening the tissues of the specimen involved.

Formaldehyde is a gaseous compound that has an aldehyde functional group i.e. -CHO and has a chemical formula, H-CHO or CH2O as described in the question that a central C is double bonded to an O, and single bonded to 2 H (see attached image for structural formula).

4 0
3 years ago
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