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gayaneshka [121]
3 years ago
11

How do you reduce friction

Physics
1 answer:
choli [55]3 years ago
3 0
To reduce friction between two surfaces, you have to
make the surfaces smoother. 

The best way to do that is to introduce a fluid between them,
like grease, oil, or air.
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You drive 200 miles in 3 hours before stopping for lunch and gas. After lunch you
Paraphin [41]

Given :

You drive 200 miles in 3 hours before stopping for lunch and gas. After lunch you  travel 250 miles in an hour and a half.

To Find :

Average speed.

Solution :

We know, average speed is given by :

v=\dfrac{\text{Total distance covered}}{\text{Total time taken}}\\\\v=\dfrac{200+250}{3+1.5}\ miles/hr\\\\v=\dfrac{450}{4.5}\ miles/hr\\\\v=100\ miles/hr

Therefore, average speed of the journey is 100 miles/hr.

Hence, this is the required solution.

4 0
4 years ago
15 points Plz help me no links
wolverine [178]

Answer:

alternating mountain ranges and valley.

Hope u find this helpful

7 0
3 years ago
Read 2 more answers
If the magnetic field in a traveling EM wave has a peak value of 17.9nT, what is the peak value of the electric field strength?
Doss [256]

Answer:

5.37 N/C

Explanation:

Peak value of magnetic field, Bo = 17.9 nT = 17.9 x 10^-9 T

The electromagnetic wave is produced when an oscillating electric and magnetic field interacts each other perpendicularly.

The direction of propagation of electromagnetic wave is perpendicular to both electric and magnetic field.

the relation between the electric field and magnetic field amplitudes is given by

c = \frac{E_{0}}{B_{0}}

where, c be the velocity of light, Eo be the peak value of electric field strength, Bo is the peak value of magnetic field strength.

3\times 10^{8} = \frac{E_{0}}{17.9\times 10^{-9}}}

Eo = 5.37 N/C

4 0
3 years ago
What are non-metals?<br>explain briefly​
aliya0001 [1]

Answer:

In chemistry, a nonmetal is a chemical element that is mechanically weak in its most stable form, brittle if solid, and usually gains or shares electrons in chemical reactions. There is no universal agreement on which elements are nonmetals; the numbers generally range from fourteen to twenty-three, depending on the criterion or criteria of interest.

3 0
3 years ago
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Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from =6 to =1.
scoundrel [369]

When an electron in a hydrogen atom transitions from the state of n=6 to n=1, a photon with an energy of 13.2 eV is released.

<h3>What components make up a photon?</h3>
  • A photon is a microscopic particle that is part of electromagnetic radiation waves.
  • Maxwell demonstrated that photons are merely electric fields flowing through space.
  • A single photon can trigger a response from sensors in the retina.
<h3>What is the difference between an electron and a photon?</h3>
  • Photons and electrons. One of the fundamental quantum-mechanical particles is an electron, although photons also exist and have entirely distinct properties.
  • While the electron is a subatomic particle found in every atom, the photon is a sort of elementary particle that serves as an energy carrier.

learn more about photon here

brainly.com/question/15946945

#SPJ4

5 0
2 years ago
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