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mash [69]
3 years ago
6

A gust of wind blows an apple from a tree. As the apple falls, the force of gravity on the apple is 9.39 N downward, and the for

ce of the wind on the apple is 1.54 N to the right. What is the magnitude of the net external force on the apple?
Physics
1 answer:
Paladinen [302]3 years ago
4 0
Use the Pythagorean theorem to put the two components together because they are perpendicular to each other and if you were to draw a force vector for the total force it would complete a right triangle with the other two. The r silt is therefore 9.52 N.
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MrRa [10]
If I'm not wrong #1 should be C
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A wheel that was initially spinning is accelerated at a constant angular acceleration of 5.0 rad/s^2. After 8.0 s, the wheel is
notka56 [123]

Answer:

a)  Initial angular speed = 30 rad/s

b) Final angular speed = 70 rad/s        

Explanation:

a) We have equation of motion s = ut + 0.5at²

    Here s = 400 radians

              t = 8 s

              a = 5 rad/s²

    Substituting

             400 = u x 8 + 0.5 x 5 x 8²

              u = 30 rad/s

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b) We have equation of motion v = u + at

     Here u = 30 rad/s

               t = 8 s

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   Final angular speed = 70 rad/s        

8 0
3 years ago
4. The Mariana trench is in the Pacific Ocean and has a depth of approximately 11,000 m. The density of seawater is approximatel
Alex73 [517]

Explanation:

It is known that relation between pressure and density is as follows.

            P = \rho gh

where,    P = pressure

     \rho = density

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            h = height

Putting the given values into the above formula as follows.

              P = \rho gh

                 = 1025 \times 9.8 \times 11000

                 = 110495000 Pa

Now, relation between pressure and force is as follows.

                P = \frac{F}{A}

or,            F = PA

                F = 110495000 \times \pi \times (0.1)^{2}

                   = 3.47 \times 10^{6} N

Thus, we can conclude that a force of 3.47 \times 10^{6} N can be  experienced at such depth.

3 0
2 years ago
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vladimir2022 [97]

Answer:

40 J

Explanation:

8 0
3 years ago
Which produces more gravitational force on your textbook: you or the earth?
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5 0
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