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harina [27]
3 years ago
6

Looking at the Helmholtz Coil apparatus from the front, the electron beam was directed to the right and then it curled into a co

unterclockwise circular path. The magnetic field created by the Helmholtz coils was therefore in what direction?

Physics
1 answer:
natima [27]3 years ago
3 0

Answer:

Explanation:

The magnetic field created by Helmholtz Coil apparatus is in right direction

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A spherical wave with a wavelength of 2.0 mm is emitted from the origin. At one instant of time, the phase at rrr = 4.0 mm is πr
max2010maxim [7]

Complete Question

A spherical wave with a wavelength of 2.0 mm is emitted from the origin. At one instant of time, the phase at r_1 = 4.0 mm is π rad. At that instant, what is the phase at r_2 = 3.5 mm ? Express your answer to two significant figures and include the appropriate units.

Answer:

The phase at the second point is  \phi _2  = 1.57 \  rad

Explanation:

From the question we are told that

    The wavelength of the spherical wave is  \lambda =  2.0 \ mm =  \frac{2}{1000} = 0.002 \ m

    The first radius  is  r_1  = 4.0 \ mm  = \frac{4}{1000}  = 0.004 \ m

     The phase at that instant is  \phi _1 = \pi \ rad

     The second radius is  r_2  = 3.5 \ mm  = \frac{3.5}{1000}  = 0.0035 \ m

Generally the phase difference is mathematically represented as

          \Delta  \phi =  \phi _2 -  \phi _1

this can also be expressed as

         \Delta \phi =  \frac{2 \pi }{\lambda } (r_2 - r_1 )

So we have that

   \phi _2 -  \phi _1 =   \frac{2 \pi }{\lambda } (r_2 - r_1 )

substituting values

     \phi _2 -  \pi =   \frac{2 \pi }{0.002 } ( 0.0035 - 0.004 )

    \phi _2  =   \frac{2 \pi }{0.002 } ( 0.0035 - 0.004 ) +   3.142

   \phi _2  = 1.57 \  rad

7 0
3 years ago
An expression representing a chemical reaction; the formulas of the reactants are connected by an arrow with the formulas for th
wariber [46]

Explanation:

A chemical reaction is a reaction in which two or more species combine together to form a molecule with a new chemical composition.

In a chemical reaction, the reactants are written on left hand side pointing a forward arrow towards the products which are written on the right hand side.

For example, chemical reaction between hydrogen and oxygen will result in the formation of water. The reaction equation will be as follows.

          2H_{2} + O_{2} \rightarrow 2H_{2}O

4 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL MARK BRAINLYIST!!!!!!!!!
snow_lady [41]

Answer:

The answer is D. Here is proof . Plz mark brainliest

Explanation:

5 0
3 years ago
\There was a truck pulling a horse trailer. If the horse trailer weighted 150kg, went 250 miles, and the trucked used 20N to mak
mestny [16]

Answer:

a  = 0.13m/s²

Explanation:

Given parameters:

Weight of horse trailer  = 150kg

Distance covered  = 250miles

Force applied on trailer  = 20N

Unknown:

Acceleration of trailer = ?

Solution:

According to newton's second law of motion,"the acceleration of a body is directly proportional to the force on it and inversely proportional to the mass" .

          Mathematically;

                                    F  = m x a

 where f is the force

             m is the mass

               a is the acceleration

Input the parameters and solve;

                  20  = 150 x a

                      a  = 0.13m/s²

4 0
3 years ago
What is the concept called when the poles of an electromagnet were to flip?
Doss [256]
<span>Magnetization reversal. This happens with the poles on earth, and it is called geomagnetic reversal.</span>
8 0
4 years ago
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