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elena-s [515]
4 years ago
9

What is an electromagnet ​

Physics
1 answer:
Svetllana [295]4 years ago
5 0

Answer:

a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.

Explanation:

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What is the acceleration if a car slows down from 30 m/s to 15 m/s in 4 seconds?
Tamiku [17]

Answer:

11.25

Explanation:

acceleration =v-u/t

=-30-15/4

=-45/4

=11.25

hope it helps

4 0
3 years ago
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Please help me with my physics! I don not understand and please provide work.
den301095 [7]
4) B) Speed = Distance/ time
5) C) By applying second law of newton " F = ma" we say that "15 = 12 × acceleration"
15/12= acceleration
acceleration = 1.25 m/s2
6) D) It will continue to accelerate to the right but at a slower rate because of the small force (F2) being applied from the right.
7 0
4 years ago
What is the period of a wave with a frequency of 100 Hz and a wavelength of 2.0 m
spin [16.1K]

The answer for the following answer is answered below.

  • <u><em>Therefore the time period of the wave is 0.01 seconds.</em></u>
  • <u><em>Therefore the option for the answer is "B".</em></u>

Explanation:

Frequency (f):

The number of  waves that pass a fixed place in a given amount of time.

The SI unit of frequency is Hertz (Hz)

Time period (T):

The time taken for one complete cycle of vibration to pass a given point.

The SI unit of time period is seconds (s)

Given:

frequency (f) = 100 Hz

wavelength (λ) = 2.0 m

To calculate:

Time period (T)

We know;

According to the formula;

<u>f =</u>\frac{1}{T}<u></u>

Where,

f represents the frequency

T represents the time period

from the formula;

  T = \frac{1}{f}

 T = \frac{1}{100}

  T = 0.01 seconds

<u><em>Therefore the time period of the wave is 0.01 seconds.</em></u>

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3 years ago
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How does an increase in pressure affect the volume of a confined gas?
natali 33 [55]
The relationship between the pressure applied to a gas and the volume of the gas is inverse. An increase in pressure reduces the volume of the gas. <span />
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3 years ago
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1. What different types of shots are taken on the basketball court?
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Answer:

Here are a few commonly used types of shooting in basketball.

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  • Hook Shot. A hook shot is when the shot is made while your body is not directly facing the basket. ...
  • Bank Shot. ...
  • Free Throw. ...
  • Layup. ...
  • Slam Dunk.
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3 years ago
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