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2 years ago

The first step in the scientific method is to __________. A) design an experiment B) ask a question C) form a hypothesis

2 answers:

8 0

C) form a hypothesis
You first need to predict what’s going to happen meaning you don’t know and a hypothesis is an educated guess

Jet001 [13]2 years ago

5 0

Answer:

Explanation:

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An increase in atomic number is related to an increase in atomic mass because

trapecia [35]

Answer: more protons are present in the atomic nucleus

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1 year ago

If your driver license is suspended for too many points, what type of insurance must you either purchase or prove that you had o

AnnZ [28]

If your driver license is suspended for too many points, we need to show a proof of liability insurance.

What do you mean by insurance?

Managing your risk is possible with insurance. The protection against unforeseen financial losses you purchase when you purchase insurance. If something bad happens to you, the insurance company pays you or a person of your choice. If you don't have insurance and an accident occurs, you can be liable for all expenses.

An insurance policy is a binding agreement between the insurance provider (the insurer) and the individual(s), firm, or other entity being insured (the insured). Reading your policy enables you to make sure that it addresses your needs and that you are aware of both your own and the insurance provider's obligations in the event of a loss.

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8 months ago

What is the authors’ purpose in this passage? to inform the reader that Louisiana had fewer enslaved people than other slave sta

Mekhanik [1.2K]

"How Sugar Changed the World”was a book written by Heather Whipps. The authors’ purpose in this passage

To inform the reader that Louisiana's short harvest season meant that enslaved people were cruelly overworked.

The book convey the idea, that sugar has had a positive and negative impact on the world.

The Slaves did labored in the fields and the boiling houses, supplying the huge amounts of labor that sugar needed.

Conditions were the slaves worked was harsh, and mortality rates were very high through all stages of slaves' lives.

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2 years ago

An ice skater has a moment of inertia of 5. 0 kg∙m2 when her arms are outstretched. At this time she is spinning at 3. 0 revolut

Sindrei [870]

Answer:

2440.24 J

Explanation:

Moment of inertia, I1 = 5 kg m^2

frequency, f1 = 3 rps

ω1 = 2 x π x f1 = 2 x π x 3 = 6 π rad/s

Moment of inertia, I2 = 2 kg m^2

Let the new frequency is f2.

ω2 = 2 x π x f2

here no external torque is applied, so the angular momentum remains constant.

I1 x ω1 = I2 x ω2

5 x 6 π = 2 x 2 x π x f2

f2 = 7.5 rps

ω2 = 2 x π x 7.5 = 15 π

Initial kinetic energy, K1 = 1/2 x I1 x ω1^2 = 0.5 x 5 x (6 π)² = 887.36 J

Final kinetic energy, K2 = 1/2 x I2 x ω2^2 = 0.5 x 3 x (15 π)² = 3327.6 J

Work done, W = Change in kinetic energy = 3327.6 - 887.36 = 2440.24 J

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2 years ago

When proving the product, quotient, or power rule of logarithms, various properties of logarithms and exponents must be used. Wh

12345 [234]

The property that must be used in all the proofs is: logb(b^y) =y

<h3>What are the proofs or rules of logarithms?</h3>

The proofs are statements that are used to validate or invalidate a logarithmic expression

There are several proofs of logarithms; some of them are:

Product rule
Quotient rule
Power rule
Change of base

The common property in the first three proofs (listed above) is:

$\log_b(b^y) =y$

This is so because, it links all the three proofs