Which of these events is caused by contact forces?

1 answer:

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Earthquakes along the San Andreas fault in California.

Explanation:

When the two plates collide with each other, earthquakes occur. The contact between them makes this earthquake possible. The contact forces are responsible for the earthquakes as there is contact between two plates.

The gravitational force is a force that is responsible for elevated tides happening on the east coast or the Jupiter's moons to remain in orbit. But this is not a contact force as there is no contact between them

Moreover, Without any contact, the magnetic force is a non-contact as it attracts the pins from a distance.

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tankabanditka [31]

I believe it’s 60 percentage

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3 years ago

wlad13 [49]

Answer:

207.24.

Explanation:

The mass numbers of the 4 isotopes are 82+ 122 = 204, 82 + 125 = 207,

82 + 124 = 206 and 208.

The approximate atomic mass is worked out by adding the products of their relative abundances and mass numbers:

0.014*204 + 0.221*207 + 0.241*206 + 0.524*208

= 207.24.

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3 years ago

V125BC [204]

Increasing pH will increase the solubility of the CuBr.

What is the solubility of water?

When a solute is dissolved in a solvent to give a homogeneous mixture, one has a solution.
Solubility is generally expressed as the number of grams of solute in one liter of saturated solution.
For example, solubility in water might be reported as 12 g/L at 25 oC.

2CuBr + 2OH- ---> Cu2O(s) + 2HBr(aq)

adding OH- to the CuBr also shifts the equilibrium to the right side therefore increasing pH will increase the solubility of the CuBr.

Learn more about solubility

#SPJ4

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1 year ago

lapo4ka [179]

Answer A E F C

Explanation: star, planets, moons, dwarf planets, comets, asteroids, gas, and dust.

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