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Marat540 [252]
3 years ago
13

Planet z has a rocky surface. at height 3240 km above the surface, the gravitational acceleration is what is the radius of the p

lanet?
Physics
1 answer:
jolli1 [7]3 years ago
8 0
Https://www.google.com/search?tbs=sbi:AMhZZiuc6mk5S438WBb7iizj56MvoVz9sxfbOaVcy_1SdDTQnJdcyo0Qu7CKsc...
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What are the primary colors? What are the secondary colors?
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Color Basics

Three Primary Colors (Ps): Red, Yellow, Blue.

Three Secondary Colors (S'): Orange, Green, Violet

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Javier wants to improve his flexibility and increase his personal discipline. Which community resource should he select?
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Leticia timed how fast five apple slices turned brown (oxidate) after being being dipped in different preservatives such as lemo
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A train has an acceleration of magnitude 0.90 m/s2 while stopping. A pendulum with a 0.55-kg bob is attached to a ceiling of one
anygoal [31]

The angle of the pendulum with the vertical is 5.2^{\circ}

Explanation:

As the train decelerates, the bob of the pendulum will feel a force given by

F=ma

where

m = 0.55 kg is the mass of the bob

a=0.9 m/s^2 is the magnitude of the acceleration

In the horizontal direction.

The pendulum will be inclined at an angle \theta from the vertical, so it will be in equilibrium, and therefore the horizontal component of the tension in the string must be equal to the net force F of the previous equation:

T sin \theta = ma (1)

where T is the tension in the string.

We also know that the bob is in equilibrium along the vertical direction: so the vertical component of the tension must be equal to the weight of the bob,

T cos \theta = mg (2)

where g=9.8 m/s^2 is the acceleration of gravity.

Dividing eq.(1) by eq(2), we get:

tan \theta = \frac{a}{g}

And therefore, we find the angle:

\theta=tan^{-1}(\frac{a}{g})=tan^{-1}(\frac{0.90}{9.8})=5.2^{\circ}

Learn more about forces and acceleration:

brainly.com/question/11411375

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3 years ago
How are the sun and Earth's moon different?(2 points)
katovenus [111]

Answer: The Sun measures 1.4 million km across, while the Moon is a mere 3,474 km across. In other words, the Sun is roughly 400 times larger than the Moon. But the Sun also happens to be 400 times further away than the Moon, and this has created an amazing coincidence.

Explanation:

4 0
3 years ago
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