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3 years ago

The Moon orbits Earth and not the Sun because the Sun doesn't exert a gravitational force on the Moon. true or false

Physics

2 answers:

Nezavi [6.7K]3 years ago

8 0

I think it is true because the litter one s the one that orbits

zhuklara [117]3 years ago

4 0

The answer to that question is the Earth orbits the sun because every planet that it lighter than the Sun will orbit it. The reason that the moon and satellites we launch orbit Earth because they are so much lighter than our planet. So baisicly it goes by lighter!

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In an arcade game a 0.099 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and releas

Sonja [21]

Answer:

The speed of disk is 1.98 $\frac{m}{s}$

Explanation:

Given:

Mass of $m = 0.099$ kg

Spring constant $k = 244 \frac{N}{m}$

Compression of spring $x = 4 \times 10^{-2}$ m

From energy conservation theorem,

Spring potential energy converted into kinetic energy,

$\frac{1}{2} m v^{2} = \frac{1}{2} k x^{2}$

$v = \sqrt{\frac{k x^{2} }{m} }$

$v = \sqrt{\frac{244 \times 16 \times 10^{-4} }{0.099} }$

$v = 1.98 \frac{m}{s}$

Therefore, the speed of disk is 1.98 $\frac{m}{s}$

8 0

3 years ago

A temperature inversion happens when a _____ air layer traps pollution close to the surface of the earth.

LenaWriter [7]

When warm air layer traps pollution that is within the earth's surface, a temperature inversion usually takes place. In addition, at temperature inversion happens when the cold air overlays the warm air in the troposphere, which does not usually happen since warm air rises and cold air sinks by principle.

8 0

4 years ago

Search about non-ohmic devices in 3 pages

Tomtit [17]

Answer:

electronic diode,

Explanation:

Non-ohmic conductors are materials that do not obey ohm's law and they are electronic diode, transistors, tungsten, thermistors and vacuum tube etc.

7 0

3 years ago

Jared is reading an article about the heavy rains that have fallen recently in his town. But he can’t separate the facts from th

Crank

FACTS:
|
|
It’s that time of year again when the days are wet and cool.
 The rainy season is the best season.
Rain makes up part of Earth’s water cycle.
Water evaporates from streams, lakes, and oceans, then condensation
 and precipitation occur in the form of rain.
 Precipitation in the form of rain is better than snow.
 Snow this time of year makes people gloomy.
Rain is a great boon to local farmers.
It helps their crops grow.

OPINIONS:
|
| It’s that time of year again when the days are wet and cool.
The rainy season is the best season.
 Rain makes up part of Earth’s water cycle.
 Water evaporates from streams, lakes, and oceans, then condensation
and precipitation occur in the form of rain.
Precipitation in the form of rain is better than snow.
Snow this time of year makes people gloomy.
 Rain is a great boon to local farmers.
 It helps their crops grow.

6 0

3 years ago

Read 2 more answers

50.0 meters away from a building. Tip of the building makes an angle of 63.0° with the horizontal. What is the height of the bui

soldi70 [24.7K]

Answer:

98.13m

Explanation:

Complete question

Daniel is 50.0 meters away from a building. Tip of the building makes an angle of 63.0° with the horizontal. What is the height of the building

CHECK THE ATTACHMENT

From the figure, using trigonometry

Tan(θ ) = opposite/adjacent

Where Angle (θ )= 63°

Opposite= X = height of the building

Adjacent= 50 m

Then substitute the values we have

Tan(63)= X/50

1.9626= X/50

X= 1.9626 × 50

X= 98.13m

Hence, the height of the building is 98.13m

8 0

3 years ago