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steposvetlana [31]
3 years ago
13

What is the best example of an activity that works the rectus abdominus?O Bench pressO CrunchPull ups

Physics
1 answer:
earnstyle [38]3 years ago
5 0
The answer is Crunch.
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You have a set of calipers that can measure thicknesses of a few inches with an uncertainty of ± 0.005 inches. You measure the t
Bond [772]

Answer:

a) x = (0.0114 ± 0.0001) in , b) the number of decks is 5

Explanation:

a) The thickness of the deck of cards (d) is measured and the thickness of a card (x) is calculated

        x = d / 52

        x = 0.590 / 52

        x = 0.011346 in

Let's look for uncertainty

       Δx = dx /dd Δd

       Δx = 1/52 Δd

       Δx = 1/52  0.005

       Δx = 0.0001 in

The result of the calculation is

        x = (0.0114 ± 0.0001) in

b) You want to reduce the error to Δx = 0.00002, the number of cards to be measured is

           #_cards = n 52

The formula for thickness is

           x = d / n 52

Uncertainty

          Δx = 1 / n 52  Δd

         n = 1/52 Δd / Δx

         n = 1/52 0.005 / 0.00002

         n = 4.8

Since the number of decks must be an integer the number of decks is 5

3 0
3 years ago
1hp is written in electric motor what does it mean​
Angelina_Jolie [31]

Explanation:

The horsepower (hp) is a unit in the foot-pound-second ( fps ) or English system, sometimes used to express the rate at which mechanical energy is expended. It was originally defined as 550 foot-pounds per second (ft-lb/s). A power level of 1 hp is approximately equivalent to 746 watt s (W) or 0.746 kilowatt s (kW).

5 0
3 years ago
Which sentence best describes frustration?
Rus_ich [418]
I would say a. Good luck!
8 0
3 years ago
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Is 0.9 less that 1.0?
Tom [10]
0.9 is less than 1.0 by 0.1
so your answer is true

hope this helps
7 0
3 years ago
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An object travels for 5 minutes with constant motion. What conclusion can you make about the sum of the forces (total force) act
zheka24 [161]
Using Fnet= ma, constant motion means 0 acceleration, Fnet ( force ) will be also 0
3 0
2 years ago
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