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USPshnik [31]
3 years ago
9

A change in position of an object relating to time

Physics
2 answers:
Stella [2.4K]3 years ago
8 0

Answer:

Speed describes how far an object moves in a given amount of time (for example, miles per hour).

Explanation:

MaRussiya [10]3 years ago
3 0
The answer is: Motion!

Have a great day
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Determine the inductance L of a 0.65-m-long air-filled solenoid 3.2 cm in diameter containing 8400 loops.
den301095 [7]

Answer:

The inductance is  L  = 0.1097 \ H

Explanation:

From the question we are told that

  The  length is  l  =  0.65 \ m

   The  diameter is  d =  3.2 cm  = 0.032 \ m

    The  number of loops is  N  =  8400

Generally the radius is evaluated as

       r = \frac{ 0.032 }{2}  =  0.016 \ m

The  inductance is mathematically represented as

      L  =  \frac{ \mu_o  *  N^2  * A }{ l }

Here \mu_o is the permeability of free space with value  \mu_o   = 4\pi * 10^{-7} N/A^2

A is the cross-sectional area which is mathematically evaluated as

             A =  \pi  r^2

=>        A =  3.142 *  (0.016)^2

=>        A =  0.000804 \ m^2

 =>  L  =  \frac{   4\pi * 10^{-7} *  8400^2  * 0.000804  }{ 0.65 }

=>    L  = 0.1097 \ H

5 0
3 years ago
Warm air aloft is normally higher pressure relative to colder air aloft, which is normally of lower pressure (at equivalent alti
Allisa [31]

Answer:

the statement given is False.

Explanation:

The pressure is defined by

     P = F / A

The force of the air is its weight,

     P = W_air / A

The weight of an air column on us depends on the energy of the molecules that is related to the temperature

      E = 3/2 K T

 When the air is warmer it has more energy so the molecules can move more distance and therefore the average density of the gas decreases, as the density decreases, the weight of the column on us also decreases, therefore the pressure low.

The correct statement is: When the air is hotter it has less pressure than when the air is cold.

 It is summary the statement given is False

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4 years ago
The metric system is now known as the international system of units.<br> a. T<br> b. F
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<span>The metric system is the oldest name for the international system of units. The answer is <u>a. True. </u>SI unit or the international systems of units are based on seven basic units; the meter, kilogram, second, ampere, Kelvin, candela and mole. All of these basic units are divided into multiples by a power of ten. For example in meters, 1 meter is equal to: 1000 millimeter, 100 centimeter, 10 decimeter, 0.1 decameter, 0.01 hectometer, 0.001 kilometer and so on and so forth.</span>
6 0
3 years ago
What is Bernoulli's principle???
maks197457 [2]
The Bernoulli's principle is <span>the principle in hydrodynamics that an increase in the velocity of a stream of fluid results in a decrease in pressure.</span>
7 0
3 years ago
This simulation is modeling __________________.
bezimeni [28]

Answer:

Gravitational Force

Explanation:

3 0
4 years ago
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