3 years ago

Which of the following statements accurately describes oceanic electric fields?

Physics

2 answers:

tiny-mole [99]3 years ago

6 0

Answer:

ANSWER C

Explanation:

vichka [17]3 years ago

3 0

Answer:

i sure it is D

Explanation:

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A car accelerates from 10m/s to 20m/s over a distance of 80m. What is its acceleration?

Lina20 [59]

Answer:

0.125m/s^2

Explanation:

20-10=10

10 divided by 80=0.125m/s^2

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4 years ago

A 357 kg box is pulled 8.00 m up a 30° frictionless, inclined plane by an external force of 4925 N that acts parallel to the pla

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3 years ago

Which explicit definition matches this sequence? an={10,if n=1an−1−4,if n>1 A. an = 10 + 4(n – 1) B. an = 10 – 4(n – 1) C. an

Step2247 [10]

Answer:

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Explanation:

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3 years ago

Which statement best describes why specific heat capacity is often more useful than heat capacity for scientists when comparing

maks197457 [2]

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Specific heat capacity is an intensive property and does not depend on sample size.

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3 years ago

A uniform rod is set up so that it can rotate about a perpendicular axis at one of its ends. The length and mass of the rod are

igor_vitrenko [27]

Answer:

0.231 N

Explanation:

To get from rest to angular speed of 6.37 rad/s within 9.87s, the angular acceleration of the rod must be

$\alpha = \frac{\theta}{t} = \frac{6.37}{9.87} = 0.6454 rad/s^2$

If the rod is rotating about a perpendicular axis at one of its end, then it's momentum inertia must be:

$I = \frac{mL^2}{3} = \frac{1.27*0.847^2}{3} = 0.303kgm^2$

According to Newton 2nd law, the torque required to exert on this rod to achieve such angular acceleration is

$T = I\alpha = 0.303*0.6454 = 0.196 Nm$

So the force acting on the other end to generate this torque mush be:

$F = \frac{T}{L} = \frac{0.196}{0.847} = 0.231 N$

4 0

3 years ago