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Eduardwww [97]
3 years ago
6

Which type of investigation typically include independent variable and dependent variables

Physics
1 answer:
GREYUIT [131]3 years ago
8 0

D. descriptive because it makes more sense to me then  all the others.

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Good morning! can someone please answer this, ill give you brainliest and you will earn 50 points.
dmitriy555 [2]
  1. Demand of natural resources have influenced human settlement plans .
  2. Clean air,clean water and food are examples of natural resources

How demands became the obstacles ?

  • The demands forces the human to go to different places in order to fulfill their requirements .
  • So they have to shift their homes to different places .

7 0
2 years ago
Please help !!!!! I’ll give brainliest !
goblinko [34]

I think A but I dont really know

3 0
2 years ago
what is the energy of an electromagnetic wave that has a frequency of 8.0 x 10^15 Hz? Use the equation...
Katarina [22]

(C)

Explanation:

E = hf = (6.626×10^{-34}\:\text{J•s})(8.0×10^{15}\:\text{Hz})

= 5.3×10^{-18}\:\text{J}

4 0
2 years ago
A charged particle enters into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field vec
Phoenix [80]

Answer:

The particle path will follow

(d) a circular path

Explanation:

When a charged particle having charge of magnitude 'q' enters into a magnetic field such that its velocity vector '\vec{V}' is perpendicular to the direction of the magnetic field '\vec{B}', then it will experience a force, called Lorentz force (\vec{F_{L}}), given by

\vec{F_{L}} = \vec{V} \times \vec{B}

As shown in the figure, the magnetic field is directed perpendicular to the plane and towards the plane (as shown by the circle and 'X'-sign) and the velocity vector is from left to right on the plane.

According to the property of cross-product, the Lorentz force (F_{L}) acting on the particle will be perpendicular to the instantaneous position of the particle, making the path of the particle to be a circular path,as shown in the figure.

7 0
3 years ago
When the temperature of air increases the wave length of a sound wave
solmaris [256]

If temperature T increases , speed of sound v also increases , now by , λ=v/f , as v increases , λ (wavelength) will increase . Frequency is characterised by the source of sound hence it is not affected by temperature , and as T=1/f , so time period also doesn't change.

6 0
3 years ago
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