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Kitty [74]
3 years ago
12

You push an object initially at rest across a frictionless floor

SAT
1 answer:
Ket [755]3 years ago
3 0

 t = t₀ / 2

Explanation:

In this exercise we must use Newton's second law

         F = m a

         a = F / m

now we can use kinematics

 as in object part of rest (v₀ = 0)

       v =a t₀

       t₀ = v / a

these results are with the first experiment

now repeat the experiment, but F = 2F₀

          a = 2F₀ / m = 2 a₀

         v = 2 a₀ t

         t = v / 2a₀

         t = t₀ / 2

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May somebody help me please
patriot [66]

Answer:

107 degrees

Explanation:

The lines intersect to create a triangle.  The sum of the interior angles of a triangle is 180 degrees.

a + b+ c = 180

We deduce the unlabeled angle (in the lower right corner) by considering the line that goes from that angle to the a angle on the left side.  The line itself has a 180 degree angle (on each side).  And we know the exterior angle is 107 degrees... that leaves 73 for the interior angle.

We take the equation above again... by putting now the value of C (the un-named angle):

a + b + 73 = 180

We isolate the a+b part... to get a+b = 107, the same value as the exterior angle.

6 0
3 years ago
Select the correct answer. what is the value of this limit? a. b. c. d. e.
dlinn [17]

The value of the limit expression \lim_{x \to 3} \sqrt{x^2 + 7} + 5 is 9, and it means that the function approaches 9, as x approaches 3.

<h3>How to evaluate the limit?</h3>

The limit expression is given as:

\lim_{x \to 3} \sqrt{x^2 + 7} + 5

This means that we determine the value of the function as x approaches 3.

So, we have:

Limit = √(3^2 + 7) + 5

Evaluate the square

Limit = √(9 + 7) + 5

Evaluate the sum

Limit = √16 + 5

Evaluate the square root

Limit = 4 + 5

Evaluate the sum

Limit = 9

Hence, the value of the limit \lim_{x \to 3} \sqrt{x^2 + 7} + 5 is 9

Read more about limits at:

brainly.com/question/14143957

#SPJ1

7 0
2 years ago
What goes in the box
Kitty [74]

storm

bare

taught

enormous

forward

situation or place

bad

electronic

pretty

dangerous

3 0
3 years ago
Read 2 more answers
what word is used to describe the distance between a point on one wave and the same point on the next wave?
Sliva [168]

Answer:

wavelength

Explanation:

The answer is Wavelength because the wavelength of a wave is the distance between a point on one wave and the same point on the next wave. The easiest way to find the wavelength of the wave is by choosing the Crest of one wave and find the distance of that point to the Crest of the next wave.

<h2>hope the above answer helps</h2><h2>please rate and mark brainliest!!!</h2>
3 0
2 years ago
What does energy mean?
gogolik [260]

Answer:

It is something that your body converts sugar into

Explanation:

And there are others but I think that is the main one U^U

7 0
3 years ago
Read 2 more answers
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