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Kitty [74]
2 years ago
12

You push an object initially at rest across a frictionless floor

SAT
1 answer:
Ket [755]2 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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FromTheMoon [43]

Answer:

0.2776

Explanation:

Mean = 15000, SD = 1500

We need to find Cumulative probability: P(X > 15884)

First we need to convert it into normal distribution.

From the attached file, we can see the shaded area we are looking for.

For conversion as follow; P (X>15884) =P ( X - mean > 15884-15000 ) =P (\frac{X- mean}{SD} > \frac{15884-15000}{1500} )

Next to find Z = \frac{X- mean}{SD} = 0.59

now we have converted to normal distribution and found the value of Z, we need to find the probability P(X > 15884).

P(X > 15884) = P(Z > 0.59).

From the normal distribution table at Z= 0.59, and greater than 0.59, Probability = 0.2776.

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3 years ago
Riddle me this <br>why are all brainly answers wrong? <br>​
Ilia_Sergeevich [38]

Answer:

Because the people are to lazy and don't feel like giving away points and the joy of being marked brainliest

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In what states can the substance exist on the surface of earth at sea level (open to the atmosphere)?.
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teiple point of 17 degrees and a pressure of 3.2 atmospheres

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Describe and explain the difference in muscularity between the crop and the gizzard
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The difference in muscularity between the crop and the gizzard earthworm is that; Crop muscularity is soft while for gizzard it is hard.

<h3>What are the differences in Muscularity?</h3>

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Now, the digestive system of earthworms is made up of pharynx, oesophagus, intestine, gizzard and crop. The mode of digestion is that the food passes through the esophagus after which it is now pushed down the crop where it is used for storage and then in the gizzard where the food is being grind.

Finally. the difference between the crop and the gizzard is that the crop muscularity is soft while that of gizzard is hard.

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Which feature of texas cattle ranching did not originate in spain.
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It should be noted that the feature of Texas cattle ranching that did not originate in Spain is The cattle drive.

<h3>What is Texas cattle ranching  all about?</h3>

Texas cattle ranching is the unique way in which they take care of their animal rearing system.

Texas cattle ranching;

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However , some of the system comes from Spain

Learn more about Texas cattle ranching  at:

brainly.com/question/13171394

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