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nekit [7.7K]
2 years ago
11

Forces that affect objects without touching them are called field forces. Is gravity a field force? Explain.

Physics
1 answer:
Sergeu [11.5K]2 years ago
3 0
Yes, gravity is a field force because gravity starts from the inside layers of the earth, but doesn't touch us physically, an example of this would be that if we jump, gravity would pull us back down, but without touching you physically.
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a plane travels 204 km, northeast in 15.0 minutes. It also increases elevation by 1.6 km, upward in the same amount of time. Wha
LUCKY_DIMON [66]

Answer:

230 m/s northeast, 1.8 m/s up

Explanation:

204 kilometres = 204000 metres

15.0 minutes = 900 seconds

Velocity = Distance / Time

= 204000 / 900

= 230 m/s northeast (to 2 sf.)

1.6km = 1600 metres

Velocity = 1600 / 900

= 1.8 m/s up (to 2 sf.)

Read more on Brainly.com - brainly.com/question/13863590#readmore

5 0
2 years ago
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Sound waves are a longitudinal wave that have a speed of about 340 m/s when traveling through room temperature air. What is the
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The wavelength of the wave is 0.055 m

Explanation:

The relationship between speed, frequency and wavelength of a wave is given by the wave equation:

v=f\lambda

where

v is the speed

f is the frequency

\lambda is the wavelength

For the sound wave in this problem we have

v = 340 m/s is the speed

f = 6,191 Hz is the frequency

Solving for \lambda, we find the wavelength:

\lambda=\frac{v}{f}=\frac{340}{6191}=0.055 m

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brainly.com/question/9077368

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8 0
2 years ago
meg goes swimming on a hot afternoon. when she comes out of the pool, her foot senses that the pavement is unbearably hot. suppo
klasskru [66]
<span>The scientific method is a process for experimentation that is used to explore observations and answer questions. To apply the scientific method, Meg must: (1) Ask why the pavement is unbearably hot; (2) Research why it could be hot, the matter of the pavement, the temperature of her body; (3) Construct a hypothesis of to why it is unbearably hot; (4) Test her hypothesis with an experiment; (5) Analyze her data and determine whether her hypothesis works; (6) Communicate her results. 
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There are clouds forming over Florida. The temperatures in the clouds and in the air are above freezing. Which form of precipita
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The type of precipitation expected to occur in Florida is "Rain" when the temperatures of air and clouds are above freezing point.

<u>Explanation:</u>

Under certain conditions, water droplets get freezes due to low temperatures. However, if the temperature of the air beneath the cloud is higher than the freezing point 32°F (0°C), the frozen start to meltdown due to high temperature and falls as raindrops on the surface of the earth. Hence Rain form of precipitation is expected to occur in Florida when the temperature of the cloud and air is above freezing.

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2 years ago
Pleaseeeeee helpppp meeeeeeee please don't skippp I am struggling baddd​
dlinn [17]

Answer:

  • magnetic force: compass, door catch, speaker, armature
  • electric force: air filter, socks

Explanation:

You are expected to have some understanding of how these devices work. It is helpful to actually see one or take it apart.

<u>Magnetic force</u> is involved where there is a magnet or material that responds to a magnet.

Of course a compass aligns itself with the magnetic field of the earth.

A magnetic door catch uses a magnet or pair of magnets to attract a metal plate, holding the door closed.

A speaker uses the reaction between the magnetic field in a coil of wire and that of a fixed magnet to move the speaker cone. (There are versions of speakers that use electrostatic force (electric field), but those are less common.)

A motor moves by creating a magnetic field in the armature that reacts with one in the stator. The latter can be created by fixed magnets, or by an electric current.

__

<u>Electric force</u> is involved when the operation is a result of the attraction between oppositely charged particles.

An electronic air filter uses the attraction of charged particles to attract "dirt" in the air to a charged surface, so removing it from the air.

Socks from the dryer often cling to each other (static cling) because the charge they get from rubbing other dryer contents is not dissipated in the dry air. (Fabric softener can reduce this effect, presumably by making the materials more electrically conductive.)

6 0
2 years ago
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