an elevator weighing 6,000 newton move up a distance of 10 meters in 30 seconds.what was the power of the elevators motor in watt and and in horsepower? btw: the part im having trouble with is getting the horse power

Answers

Answer 1

Answer:
Energy added to the elevator (work) = (6,000 N) x (10 meters) = 60,000 joules.

Power = (energy) / (time) = (60,000 joules) / (30 seconds) = 2,000 watts.

Now, here comes the part you've been waiting for: The "horsepower".

We won't go through the history of 'horsepower', where it came from etc.
All you need to know is how it relates to 'watts'.

Here's that answer:   1 horsepower = 746 watts .

So the power of your elevator motor was

   (2000 watts) x (1 HP / 746 watts) = 2.681 horsepower (rounded)

Obviously, that unit has nothing to do with real horses, if it ever did.
It's just another name for 746 watts.

Now I WILL tell you how to remember that number ... because it's such a gas.
This story is not true either. But I bet you'll remember it, for a while anyway:

From the detailed entries in Christopher Columbus' log during his
first voyage to the New World, modern scientists have been able to
calculate that when running before a wind of 30 mph, the main sail
of the Nina, the Pinta, or the Santa Maria would have developed
almost exactly 2.0 horsepower.

Columbus discovered America in 1492 .

So each sailing horsepower on that voyage corresponded to

   1492 / 2 = 746 watts.

Sorry about that.
The devil makes me do it whenever the subject comes up.

Related Questions

What multiplies to 14 but adds to negative 4?
What is the equation of a line, in general form, with a slope of -2 and a y-intercept of 8? x + 2y - 8 = 0 2x + y - 8 = 0 2x - y + 8 = 0
Pls give an explanation
3 2/5 times 4/7 times 1/2 equals
How many feet are in a meter

Charles can do a job in 1 hour, Bill can do the same job in 2 hours, and Bob can do the jobin 3 hours. How long does it take them to do the job working together?

Answers

1hr +2hr+3hr is 6 hours job done

1+2+3=6 hours
bill Charles and bob

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!What are the factors of the polynomial function?

Use the rational root theorem to determine the factors.

Answers

Answer: (x - 2)(x + 2)(2x + 1)

Step-by-step explanation:

q p

f(x) = 2x³ + x² - 8x - 4

rational root theorem: $(p)/(q) = +/- (1, 2, 4)/(1, 2)$ so the possible roots are: +/- 1, 2, 4, $(1)/(2)$

Let's try x = 2

2 | 2 1 -8 -4

| ↓ 4 10 4

2 5 2 0 remainder is 0 so (x - 2) is a factor

0 = (x - 2) (2x² + 5x + 2)

0 = (x - 2) (x + 2)(2x + 1)

Answer: X - 2 ( X + 2) (2 x + 1)

Jack has a 35-foot ladder leaning against the side of his house. If the bottom of the ladder is 21 feet away from his house, how many feet above the ground does the ladder touch the house?

Answers

Answer:

The distance above the ground does the ladder touch the house x = 28 ft

Step-by-step explanation:

Given data

Length of the ladder = AC = 35 ft

BC = 21 ft

AB = x = distance above the ground does the ladder touch the house

From Δ ABC

$AC^(2) = AB^(2) + BC^(2)$

$35^(2) = x^(2) + 21^(2)$

$x^(2) = 784$

x = 28 ft

Therefore the distance above the ground does the ladder touch the house is x = 28 ft

Answer: the answer would be 28 ft

A rectangular yard has area 96 square feet. If the width of the yard is 4 ft less than length, what is the perimeter,in feet, of the yard?

Answers

Area of the rectangular yard = 96 square feet
Let us assume the length of the yard = x feet
Width of the yard = x - 4 feet
Then
Area of the yard = length * width
96 = x(x - 4)
96 = x^2 - 4x
x^2 - 4x - 96 = 0
x^2 - 12x + 8x - 96 = 0
x(x - 12) +8(x - 12) = 0
(x - 12)(x + 8) = 0
As the value of length cannot be negative so
x - 12 = 0
x = 12
So
Length of the yard = 12 feet
Width of the yard = x - 4 feet
   = 12 - 4 feet
   = 8 feet
Then
Perimeter of the yard = 2 (length + width)
   = 2(12 + 8)
   = 2 * 20 feet
   = 40 feet.
So the perimeter of the yard is 40 feet.

There are multiple chickens and rabbits in a cage. There are 72 heads and 200 feet inside of the cage. How many chickens and how many rabbits

Answers

Let the number of chickens be x and that the number of rabbits be y

So, the equation would be
x+y = 72. --Eq.1
4x + 2y = 200 --Eq.2

Eq.1 can also be written as
2x+2y = 144 --Eq.3

Eq.2 - Eq.3

4x -2x+2y -2y = 200-144
2x = 56
x = 28

So, the number of chickens = 28
Number of rabbits = 72-28 = 44

From the set {21, 37, 45}, use substitution to determine which value of x makes the inequality true.x - 8 > 29
45
none of these
37
21

Answers

37 as if it was 21 there will be no question to getting it wrong its just the facts in the sentence that tells you its right

Hi there,

It would be 45 because that is the only thing that
can make the inequality true

Hope this helped you

Other Questions

If you formed an algebraic expression to model the phrase "the quotient of three and a number," which operation would you need?a. addition b. subtraction c. multiplication d. division User: Which algebraic expression would not be equivalent if the number and the variable were reversed?a. n + 8b. m – 5c. k x 8d. 4 + x

A micrometer is one-millionth of a meter (0.000001): ten thousand times shorter than a centimeter (0.01). How many micrometer one is one edge of a centimeter cube?

What is the final sales price of a telescope that originally cost $400 but was marked up 32?

A straight river flows east at a speed of 11 mi/h. A boater starts at the south shore of the river and wants to arrive at a point on the north shore of the river directly opposite the starting point. The motorboat has a speed of 22 mi/h relative to the water. In what direction should the boat be headed?