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larisa86 [58]
2 years ago
6

A base is a substance that can_____ a hydroxide ion A) Bond with B) Accept C) Donate

Physics
1 answer:
kirill [66]2 years ago
4 0
A) bond with a hydroxide ion
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A bag of sugar weights 20 N on the earths surface. If you double the distance from the center of the earth, the bag now weighs w
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I have no idea that’s a hard one
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What force is needed to accelerate 300kg rock as a rste of 4m/s​
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Answer:

60 maybe

Explanation:

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3 years ago
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A ball is dropped off the side of a bridge.<br> After 1.55 s, how far has it fallen?
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Answer:11.7 meters

Explanation: Gravitational acceleration (g)

9.8 m/s²

Initial velocity (v₀)

0 ft/s

Height (h)

11.77225 m

Time of fall (t)

1.55 sec

Velocity (v)

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A wire with a resistance R is lengthened to 3.07 times its original length by pulling it through a small hole. Find the new resi
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Below is an attachment containing the solution.

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3 years ago
A dragster starts from rest and travels 1/4 mi in 6.80 s with constant acceleration. What is its velocity when it crosses the fi
Ahat [919]
<h2>Its velocity when it crosses the finish line is 117.65 m/s</h2>

Explanation:

We have equation of motion s = ut + 0.5 at²

        Initial velocity, u = 0 m/s

        Acceleration, a = ?

        Time, t = 6.8 s    

        Displacement, s = 1/4 mi =    400 meters

     Substituting

                      s = ut + 0.5 at²

                      400 = 0 x 6.8 + 0.5 x a x 6.8²

                      a = 17.30 m/s²

Now we have equation of motion v = u + at

     Initial velocity, u = 0 m/s

     Final velocity, v = ?

     Time, t = 6.8 s

      Acceleration, a = 17.30 m/s²

     Substituting

                      v = u + at  

                      v = 0 + 17.30 x 6.8

                      v = 117.65 m/s

Its velocity when it crosses the finish line is 117.65 m/s

6 0
3 years ago
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