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4 years ago

Which statements describe the relationship of Earth and its moon? Check all that apply.

Physics

2 answers:

N76 [4]4 years ago

4 0

Choices #1, #4, and #5 are true.
Choices #2 and #3 aren't.

alex41 [277]4 years ago

3 0

Answer:

The moon orbits Earth following a nearly circular path.

The same face of the moon always points toward Earth.

The moon’s orbit is the result of the interaction between the moon’s inertia and the gravitational force from Earth.

Explanation:

The moon is the natural satellite of Earth. It is about one-fourth the size of the Earth. The moon rotates about its axis and revolves around Earth in about 28 days. Thus, the same face of the moon always points toward Earth.

The orbit of the moon around the Earth is nearly circular. The moon remains in its orbit due to gravitational pull of the Earth. The velocity of the Moon is tangential/perpendicular to the the gravitational pull of the Earth.

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Which statements describe kinetic and potential energy? Check all that apply.

Maru [420]

Answer:

First option, third option, fourth option, and the fifth option.

Explanation:

Kinetic energy is energy an object has when it's motion, the greater the speed the greater the kinetic energy. For example, a car moving and increasing in speed is kinetic energy since the object is in motion. If the car stops and parks in a parking lot that is potential energy. Potential energy is the amount of energy an object has when it's at rest or not in motion.

So, the answer for this question is as followed first option or "energy can be stored in the position of an object." Third option or "Energy can be stored in the position of the particles that make up a substance." Fourth option or "Energy exists as movement of the particles of a substance." The last answer will be the fifth option or "Energy is greater in faster-moving particles than in slower-moving particles."

Hope this helps.

6 0

3 years ago

The New England Merchants Bank Building in Boston is 152 m high. On windy days it sways with a frequency of 0.17 Hz, and the acc

aksik [14]

Answer:

d = 8.4 cm

Explanation:

In order to calculate the amplitude of oscillation of the top of the building, you use the following formula for the max acceleration of as simple harmonic motion:

$a_{max}=A\omega^2$ (1)

A: amplitude of the oscillation

w: angular speed of the oscillation = 2 $\pi$ f

f: frequency = 0.17Hz

The maximum acceleration of the top of the building is a 2.0% of the free-fall acceleration. Then, you have:

$a_{max}=0.02(9.8m/s^2)=0.196\frac{m}{s^2}$

Then, you solve for A in the equation (1) and replace the values of the parameters:

$A=\frac{a_{max}}{\omega^2}=\frac{a_{max}}{4\p^2i f^2}\\\\A=\frac{0.196m/s^2}{16\pi^2(0.17Hz)^2}\\\\A=0.042m=4.2cm$

The total distance, side to side, of the oscilation of the top of the building is twice the amplitude A. Then you obtain:

d = 2A = 2(4.2cm) = 8.4cm

4 0

3 years ago

Describe the atomic structure of hydrogen atom.

-Dominant- [34]

Answer and Explanation:

The hydrogen atom is an atom of hydrogen element.Hydrogen atoms contain one proton which has positive charge and one electron which has negative charge , so due to positive and negative charge present in the hydrogen atom its becomes neutral atom.In whole universe the hydrogen atom is found in most abundant. Electron and nucleus of the hydrogen atom is bound together with the help of coulomb force.

3 0

3 years ago

4. A motorist travels 406 km during a 9.0 hr period. What was the average speed in km/hr and m/s?

user100 [1]

Answer:

45.11 kmph and 12.530 m/s

Explanation:

Average speed = Total distance travelled / Total time taken

406/9 gives the answer in kilometers

And we convert it to m/s by multiplying it with 1000/3600

6 0

3 years ago

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IRISSAK [1]

No question........ ok then :)

3 0

3 years ago