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Finger [1]
2 years ago
9

Select the correct answer from each drop-down menu. Scientists that reducing the consumption of substances that emit harmful gas

es would reduce pollution. Jonathan was irritated by the noise made by the loud musical procession on the street. The poor farmer was in for a pleasant surprise when he stumbled upon a pot of gold buried in his yard.
SAT
1 answer:
Feliz [49]2 years ago
3 0

1. Scientists <u>conjectured</u> that reducing the consumption of substances that emit harmful gases would reduce pollution.

2. Jonathan was irritated by the <u>incessant</u> noise made by the loud musical procession on the street.

3. The poor farmer was in for a pleasant surprise when he <u>fortuitously</u> stumbled upon a pot of gold buried in his yard.

In this exercise, you're required to fill in the gap (blank) in the given sentences with the most appropriate word as follows:

1. Scientists <u>conjectured</u> that reducing the consumption of substances that emit harmful gases would reduce pollution.

  • A conjecture is a noun and it can be defined as an opinion or conclusion that is formed without sufficient evidence, fact or proof. Thus, a conjecture is formed on on the basis of an inconclusive or incomplete information.

2. Jonathan was irritated by the <u>incessant</u> noise made by the loud musical procession on the street.

  • Incessant is an adjective and it can be defined as an unpleasant thing that happens continuously without interruption. Thus, it is a word that is used to describe something that is ceaseless, unending or happens without stopping.

3. The poor farmer was in for a pleasant surprise when he <u>fortuitously</u> stumbled upon a pot of gold buried in his yard.

  • Fortuitously is an adverb and it is used it describe a situation or an event that happened by chance or accidentally rather than happening intentionally.

Read more on fortuitously here: brainly.com/question/2601859

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Evaluate the numerical value of the vertical velocity of the car at time t=0. 25s using the expression from part d, where y0=0.
Alex73 [517]

The vertical velocity of the car at the given position and time is 4.905 m/s.

The given parameters:

  • Initial angular velocity, \omega_0 = 6.3 rad/s
  • Time of motion, t = 0.25 s
  • Vertical displacement, y = 0.75 m
  • Angular acceleration, \alpha  = 0.95 \ rad/s^2

<h3>What is vertical velocity?</h3>
  • This is the linear velocity of an object in a vertical direction.

The angular velocity of an object in a circular motion is given as;

\omega_f = \omega _0 + \alpha t\\\\\omega _f = 6.3 \ +\  0.95 \times 0.25 \\\\\omega _f = 6.54 \ rad/s

The vertical velocity of the car at the given position and time is calculated as follows;

v = \omega r\\\\v = \omega_f y\\\\v = (6.54 \ rad/s)\times (0.75\ m)\\\\v = 4.905 \ m/s

Thus, the vertical velocity of the car at the given position and time is 4.905 m/s.

Learn more about vertical velocity here: brainly.com/question/7358392

7 0
2 years ago
Raymond bought a car for $40, 000. He took a $20,000 loan from a bank at an interest rate of 15% per year for a 3-year period. W
exis [7]

Answer:

20000*(1+15%)³=30417.5

Explanation:

The number $40000 is irrelevant. Don't be disturbed!

This is a typical compound interest question. Use the compound interest formula: S=p(1+<em>i)ⁿ</em>

S for sum, p for principal balance, <em>i </em>for interest rate, n for the number of years or times

8 0
3 years ago
A 20.0-ml sample of a 0.200 mhbr solution is titrated with a 0.200 mnaoh solution. calculate the ph of the solution after the fo
kumpel [21]

The calculated pH of the solutions are given below:

  • The pH of the solution after 14.0 ml of base is added to it is calculated as 1.45.
  • The pH of the solution after 19.8 ml of base is added to it is calculated as 3.0
  • The pH of the solution after 20.0 ml of base is added to it is calculated as 7.

<h3>What is pH?</h3>

This is the level of acidity or alkalinity of an aqueous solution. The pH of a substances tells if its an acid, base or neutral.

HBr and NaOH while in water would dissociate and they would become H+ and OH- respectively.

Mol of HBr = Mol * Vol

= 0.200 * 20mL

= 4 mmol

A. Moles of NaOH added

= 0.2 X 14

= 2.8 mmol

Moles of H+ that did not react

= 4 - 2.8

= 1.2 mmol

1.2/1000 = 0.0012 moles

Total volume = 20 + 14

= 34 mL to litres

= 0.034 L

Molarity of H+ = 0.0012 / 0.034L

= 0.035 M

-log[0.035] = 1.45

The pH of the solution is  1.45

B. NaOH added = 19.8 * 0.2 =

3.96 mmoles

The unreacted solution

= 4.0 - 3.96

= 0.04 mmol

0.04/1000 = 0.00004 moles

Total volume = 20 + 19.8

= 39.8mL

Converted to litres = 0.0398L

Molarity  = 0.00004 / 0.0398L

= 0.001

-log(0.001) = 3.0

The ph Is therefore 3.0

C. Moles of NaOH added = 0.2*20mL = 4mmol

All the H+ are going to be consumed here. This would result into a neutral solution pH = 7

<u>Complete question:</u>

20.0 mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the PH of the solution after the following volumes of base have been added.

A. 14.0 mL

B. 19.8 mL

C. 20.0 mL

Read more on pH here; brainly.com/question/22390063

3 0
2 years ago
Which is the best example of a SMART goal
svetoff [14.1K]

The method of SMART goals (an acronym for the 5 steps of specific, measurable, attainable, relevant, and time-based goals) is one of the most effective tools used by high achievers to reach their business goals consistently.

7 0
3 years ago
Read 2 more answers
If point E(5, h) is on the line that contains A(0, 1) and B(−2, −1), what is the value of h?
nikdorinn [45]
First calculate the change in y over the change in x:

by - ay -1 - 1 -2
———— = ——— = —— = 1
bx - ax -2 - 0 -2


The slope is 1:

Second set up the equation in y = mx + b form (m is your slope!) ...

y = (1)x + b

... and plug in either point you have used (A or B)

A(0,1)

1 = (1)(0) + b
1 = b

Now you have your equation: y = 1x + 1

Your final step is to plug in point C to solve for your missing variable:

y = (1)(5) + 1
y = 6

the value of H therefore is 6
3 0
4 years ago
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