In which direction does a bag at rest move when a force of 20 Newton’s is applied from the right

Physics

1 answer:

Harrizon [31]3 years ago

5 0

Answer:

It moves in the direction in which the force is applied from.

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Three children are at work.one is pushing a chair, another is pushing the sofa and the third one is pushing an empty trolley .wh

kari74 [83]

Answer:sofa

Explanation:the weight of the mass of that object can be heavy (er) than the rest

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4 years ago

In terms of the dc current I, how much magnetic energy is stored in the insulating medium of a 3- m-long, air –filled section of

Alexxandr [17]

Answer:

The answer is 138.5

Explanation:

STEP 1:

The inductance per unit length of a coaxial transmission line is

L′=L/ I

=Ø/H

=μoI/2π In (b/a)

In this a is the radius of inner conductor

b is the radius of outer conductor

I is the coaxial transmission

μ is the magnetic permeability

Since the transmission of the charge exists in air, the value of the relative permeability is μr= I and permeability of free space is μo= 4π x 10-7 H/m . So the magnetic permeability will be

μ = μoμ r

μ =μ o(I) 4π x 10-7 H/m

L′= μoI/2π In (b/a)

= (4π x 10-7 ) (2)/2π In (10/5)

=2.77 x 10-7 H

STEP 2:

Obtain the magnetic energy stores in the magnetic field H of a volume of the coaxial transmission line containing a material with permeability μ, by using the formula given below:

Wm= 1/2 LI^2

= 1/2 (2.77x 10^-7 I^2

= 138.5 X 10^-9 I^2 J

Now we will simplify the equation

Wm= 185.5I^2 nJ

So, the magnetic energy stored in insulating medium is 185.5I^2 nJ

6 0

3 years ago

A tank contains 0.568 mol of molecular nitrogen (N2). Determine the mass (in grams) of nitrogen that must be removed from the ta

Marizza181 [45]

Answer:

$\Delta M = 7.812 gm$