Um motor elétrico recebe 2.800 kJ de energia elétrica. Transforma 900 kJ em energia térmica, 150.000 J em energia sonora e o restante em energia cinética. Podemos afirmar que seu rendimento é de: *
a) 62,5 %
b) 68,7 %
c) 70,4 %
d) 72,7 %
e) 92,3 %

Answers

Answer 1

Uno se pierde, el otro se recicla.

Explicación:

El movimiento de nutrientes difiere del flujo de energía en un ecosistema porque los nutrientes se pueden reciclar mientras que, por otro lado, la energía se pierde en el ecosistema. Tanto los nutrientes como la energía fluyen en la misma dirección y toda la energía del ecosistema proviene del sol, que es la principal fuente de energía. Entonces podemos decir que la energía perdida y los nutrientes se reciclan en el ecosistema.


Related Questions

Write 1.888888... as a mixed number.

Answers

Answer:

17/9

Step-by-step explanation:

Answer:

the answer is 1 8/9.

Step-by-step explanation:

it is an improper fraction

Can someone plz help

Answers

Answer:

x=43

Step-by-step explanation:

Answer:

x = 34°

Step-by-step explanation:

(x + 7) + (63° + (2x + 8) = 180°

combine like terms:

3x + 78° = 180°

subtract 78 from each side of the equation:

3x = 102°

divide both sides by 3:

x = 34°

True or false: The following table is linear.

Answers

The table is linear because it goes up at a consistent rate each time.

To secure a telephone pole, a steel cable will be attached to a ring on the pole 12 feet above the ground. If the cable is 15 feet long, how far from the base of the pole will the other end of the cable be anchored?

Answers

Answer:

9 ft

Step-by-step explanation:

Pythagorean theorem:

x = the  square root of 15 square minus 12 square

x= square root of 225-144

x= square root of 81

X = 9

question in the picture:

Answers

Answer:

D. 191

Step-by-step explanation:

To calculate this you need to imagine triangle which points are:

boat

Top of lighthouse

Bottom of lighthouse

That triangle has 90 degrees angle at bottom of lighthouse. That means that we can use trigonometry to determine length between boat and bottom of lighthouse

tan(25) = 89/x

x = 89/tan(25)

x = 190.86

after rounding, your final answer would be 191 feet.

Write the other side of this equation so that this equation is
true for ALL values of u.
6(u - 2)+2=

Answers

Answer:

6u - 10

Step-by-step explanation:

Given

6(u - 2) + 2 ← distribute parenthesis

= 6u - 12 + 2 ← collect like terms

= 6u - 10

ASKING FOR A LONG TIME PLS HELP GONNA MAKE BRAINLIEST all i know is 20 2/3 is not right. TYSM

Answers

Answer:

it is 20 2/3

Step-by-step explanation:

because the area/formula of a rectangle is l x w so multiply the 4 and 5 2/3 and you get B...

It’d be d.

Length: (5 2/3) 5.66 x width: 4 = 22.666 or 22 2/3

Of the players on a bowling team7/10 or 7 won trophies. Explain how you can find the number of players on the team.?

Answers

Answer:

10players

Step-by-step explanation:

Using the concept of probability

probability =  expected outcome/total outcome

Total outcome s the numbers of players on the team

Given

Total number of trophy won = 7 (expected)

Fraction of those that won = 7/10 (probability)

Substitute

7/10 = 7/total outcome

1/10 = 1/total outcome

Reciprocate both sides

10/1 = total outcome

Swap

Total outcome = 10

Hence the number of players on the team is 10players

Find the volume of the following
square pyramid.
26 cm
20 cm
20 cm

Answers

I think the volume is 3,400

Just look it up on socratic

Please Answer!!! (I Give Brainliest!)

Answers

Answer:

48º

Step-by-step explanation:

Find the missing factor
2x ^ 2 + 5x - 3 = (2x - 1)

Answers

Answer:

(x-3)

Step-by-step explanation:

2x²+5x-3=x² +x−6x−3 =x(2x+1)-3(2x+1) =(2x+1)(x-3)

The required missing factor is (x - 3).

Given the equation, 2[tex]x^2[/tex] + 5x - 3 = (2x - 1).

To find the missing factor in the equation 2x^2 + 5x - 3 = (2x - 1), to factorize the quadratic equation on the left side and compare it to the given factor (2x - 1).

The factors will have the form (ax + b)(cx + d), where a, b, c, and d are constants.

To find values for a, b, c, and d such that (ax + b)(cx + d) is equal to

2[tex]x^2[/tex] + 5x - 3.

To determine the values of a, b, c, and d, we can use the FOIL method (First, Outer, Inner, Last). FOIL involves multiplying the first terms, the outer terms, the inner terms, and the last terms of the two binomials.

Factorize the quadratic equation:

2[tex]x^2[/tex] + 5x - 3

(2x - 1)(cx + d) = 2[tex]x^2[/tex] + 5x - 3

Expanding the left side using FOIL:

(2x - 1)(cx + d) = 2[tex]x^2[/tex] + 6x - x - 3

Combining like terms on the right side:

(2x - 1)(cx + d) = 2x( x  -  3) -1 (x - 3)

Combining like terms on the right side:

(2x - 1)(cx + d) = (2x - 1)(x - 3)

By comparing the coefficients of the terms on both sides of the equation, determine the missing factor. Observe that the coefficient of x^2 is 2 on both sides, and the coefficient of x is -1 on both sides.

Therefore, the missing factor is (x - 3).

Hence, the complete factorization of the quadratic equation

2[tex]x^2[/tex] + 5x - 3 = (2x - 1)(x - 3).

Learn more about factoring quadratic equations click here:

https://brainly.com/question/30398551

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Find the base of the rectangle with an area (14x2 + 35x) and height of (7x)

Answers

The the sun is one hundred and fifty million kilometers away from the earth write this as an ordinary whole number

who else has so much going on in there life that they find this part of them?

Answers

Answer:

Me bro n i like how yo power is sumthing i would have mine as

hiii please help i’ll give brainliest:)

Answers

I’m pretty sure it’s A, because after the war the Greeks won and only about 192 people died. But is there a passage with this?

Ted was asked by his Dad to order for new pots for plants. The pots cost $2 each but is on sale at 25% off. If Dad would want him to buy 8 pots, how much will they pay for the entire purchase?

Answers

I think it’s $12 Bc 2x8=16-25% is 12

find the area of parallelogram

Answers

Answer:

45m

Step-by-step explanation:

9*5

The line plot below shows the heights of players on a basketball team.

A line plot named

Which of the following statements are true? Select all that apply.

A.
There are 9 players on the team.

B.
76 inches is an outlier.

C.
More than half of the players are 79 inches or taller.

D.
3 more players are 84 inches tall than are 81 inches tall.

E.
The difference between the tallest and shortest player is 15 inches.

Answers

I think the answer is E

The difference between the tallest and shortest player is 15 inches.

More than half of the players are 79 inches or taller.

The correct option is (C) and (E).

What is graph plotting?

A plot is a graphical technique for representing a data set, usually as a graph showing the relationship between two or more variables.

As we see the plot.

The tallest =84 inch and the shortest =69 inch

So, The difference between the tallest and shortest player is 15 inches.

7 players are in range of 68- 78

8 players are in range of 79-84

Thus,  More than half of the players are 79 inches or taller.

Learn more graph plotting here:

https://brainly.com/question/11616742

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I need ur Helppppp ASAP plssss

Answers

Answer:

50 I believe

Step-by-step explanation:

Sorry if I'm wrong!

Answer:

84.78

Step-by-step explanation:

Tome walks 1/3 of a mile in 1/4 of an hour. At this rate, how many miles will Tom walk in 1 hour?

Answers

Answer:

2 miles i think

Answer:

In 1 hour, he'll walk 4/3 miles

Step-by-step explanation:

Ratios:

[tex]\frac{1/3}{1/4} =\frac{x}{1} \\\\\frac{1}{4} x=\frac{1}{3} \\\\x=\frac{4}{3}[/tex]

State the measure of an angle whose complement is 23o

Answers

Answer: 67 degrees

Step-by-step explanation:

Complementary angles are angles that add up to 90 degrees. To find the complement of an angle, subtract it from 90. 90-23=67.

I WILL MARK BRAINLIST
At the beginning of the day the temperature was -17°C. At noon the thermometer read -2°C. What is
the total change in degrees Celsius?

Answers

Okay so to get this answer u have too Take 17 and subtract 2 This equals 15, So the answer would be 15, This is how I get my answers at least

Which statement accurately describes the scatterplot?
У
:.
.
A. There are two outliers.
B. There are three distinct clusters.
C. The points seem to be clustered around a line.
D. There are no outliers. .

Answers

C. Hope it helps
#CarryOnLearning

The correct statement accurately describes the scatterplot is,

⇒ The points seem to be clustered around a line.

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

A scatterplot is shown in figure.

Now, By given figure, We get;

When we draw the line of equation,

⇒ The points seem to be clustered around a line.

Hence, The correct statement accurately describes the scatterplot is,

⇒ The points seem to be clustered around a line.

Learn more about the equation of line visit:

https://brainly.com/question/18831322

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Anyone know the correct answer for the measure of angle B?

Answers

Answer:

∠B = 64.62°

Step-by-step explanation:

cos B = 3/7 = 0.4286

∠B = 64.62°

could someone explain? i don't understand what to do

Answers

Answer:

112 degrees

Step-by-step explanation:

A triangle is comprised of 180 degrees.

34 + 34 = 68

180 - 68 = 112 degrees

Marsha deposited 7500 into a savings account 5 years ago. The simple interest rate is 3%. How much money did Marsha earn in interest

Answers

Answer: $1125

Step-by-step explanation: 7500 x 3%=  225   Then multiply 225 by the 5 years. You will then get 1125.  Marsha earned $1,125 in interest.

I hoped this helped, have a great rest of your day!

Answer:

$1125

Step-by-step explanation:

plz crown

Hi there, please help:))

Answers

Answer:

1/4

Step-by-step explanation: Slope is Rise over run you go up one and over four, so the slope is 1/4

PLEASE HELP !
Does the function f(x) = (x + 2) ^ 2 + 2 , have a minimum or a maximum? What is the minimum or maximum? Justify your answer. (3 pts-answer both questions correctly and a thorough justification, 2 pts for only having 2 of the three items, 1 pt for only 1 part correct, 0 pts for nothing correct)

Answers

don’t click those links!

La'Shawn buys the largest pizza he can find for his 16th birthday party. If he purchases the
mega pizza from Jin Jin's Biggest and Bestest Pizza and the pizza is cut into 12 equal slices with
a edge (arc) of 5.25 inches each, what is the diameter of the pizza? Round your answer to the
nearest inch.

Answers

Answer:

b

Step-by-step explanation:

Solve for x show your work

Answers

Answer:  The answer is -5

Step-by-step explanation:

4x - 3 = 6x + 7

    - 7           -7

4x - 10 = 6x

-4x        -4x

-10 = 2x

---------------

       2

-5 = x

Answer:

x = -5

Step-by-step explanation:

4x - 3 = 6x + 7

Add 3 to both sides to isolate the variable:

4x = 6x + 10

Subtract 6x from both sides to keep x on 1 side:

-2x = 10

Divide by -2 to have the base value of x:

x = -5

IF who answer fast, correct and first, I WILL GIVE YOU THEBRAINLIEST!!!!!!!!!!!!!

Answers

Answer:A

Step-by-step explanation:

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