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Paraphin [41]
3 years ago
7

The conventional relatively small unit for work(ignoring time) such as raising one pound one foot is the foot-pound(ft. lb.). Si

milarly, the joule is the unit of work that equates to _____ ft. lb., or the work to raise ______ pounds one foot or raising one pound _____ fee
Physics
1 answer:
Lelechka [254]3 years ago
6 0

Answer:

1 joule = 0.737 foot-pound

Joule is the unit of work.

1 J = 1 N·m

In SI units

1 J = 1 kg· m/s²

0.737 foot-pound is the amount of work to raise 0.737 pounds one foot or raising one pound to 0.737 ft.

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julsineya [31]

The net force is (40 Newtons) (down the road).

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3 years ago
Which statement is true regarding DC current? A. The electrons move back and forth. B. There can only be one voltage supplied. C
Kazeer [188]

Answer:

B

Explanation:

In a DC current, the current supplied is steady motion (a straight horizontal line in a graph) and this is what makes it had to transform. The alternating current takes a sine wave motion in a graph. This means is voltage varies from zero to peak and reverses polarity. The rate at which it achieves this is its frequency in Hertz.

7 0
3 years ago
Fill in the blank. When using a wrench if you double the length of the wrench (effort arm), you have ______ the required force t
OlgaM077 [116]

Answer:

halved

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the formula

8 0
3 years ago
A 1.2 m long wave travels 11.2 m to a wall and back again in 4.0 s. What is
algol [13]

Answer:

   f = 4.67 Hz

Explanation:

We can approximate the wave as a traveling wave, therefore the speed of the wave is constant

          v = d / t

the total distance remember, in going to the wall and back is

          d = 2 11.2 = 22.4 me

we substitute

          v = 22.4 / 4.0

          v = 5.6 m / s

now we can use the relationship between the speed of the wave, its wavelength and u frequency

          v =λ f

          f = v /λ

          f = 5.6 / 1.2

          f = 4.67 Hz

3 0
3 years ago
Mass and weight are the same in<br> meaning and unit.<br><br> true or false
schepotkina [342]

Answer:

False.

Explanation:

Mass is how much space an object takes up, while weight is how light or heavy an object is.

4 0
3 years ago
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