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mart [117]
3 years ago
10

Geologists use the blank test to determine the hardness of a mineral

Physics
1 answer:
Ludmilka [50]3 years ago
8 0
Geologists use the Mohs Harness Scale (aka the Scratch Test) to determine the hardness of a mineral.

For more info, check out http://geology.com/minerals/mohs-hardness-scale.shtml
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Consider a piston filled with 3 mols of an ideal gas, kept at a constant temperature 290 K. We slowly compress the gas starting
kap26 [50]

Answer: -5013.65\ J

Explanation:

Given

No of moles n=3

Temperature T=290\ K

Initial volume V_1=2\ m^3

Final volume V_2=1\ m^3

Work done in constant temperature process is

W=nRT\ln \left(\dfrac{V_2}{V_1}\right)

Insert the values

\Rightarrow W=3\times 8.314\times 290\ln \left (\dfrac{1}{2}\right)\\\\\Rightarrow W=-870\times 8.314\times \ln (2)\\\Rightarrow W=-5013.65\ J

5 0
3 years ago
Calculate the pressure in SI unit when a force of 100 dyne acts on area of 0.02cm²​
Andru [333]

Answer:

500 Pa

Explanation:

Convert given units to SI:

100 dyne = 0.001 N

0.02 cm² = 2×10⁻⁶ m²

Pressure = force / area

P = 0.001 N / (2×10⁻⁶ m²)

P = 500 Pa

7 0
4 years ago
A long conducting cylindrical pipe has a length L
DanielleElmas [232]

The charge distribute on the inner surface with the radius r₁ will be zero,In the region r₁<r<r₂  will also zero. While on the outer surface with radius r₂ will be -q.

<h3>What is Gauss law?</h3>

The total electric flux out of a closed surface is equal to the charge contained divided by the permittivity,

According to Gauss Law. the electric flux in a given area is calculated by multiplying the electric field by the area of the surface projected in a plane perpendicular to the field.

From the Gauss law, it is stated that the field inside the conductor is zero. Charge will lie only on the surface.

(a)The charge distribute on the inner surface with the radius r₁ will be zero.

(b) In the region r₁<r<r₂  will also zero.

(c)The outer surface with radius r₂ charge distribution  will be -q.

Hence, the charge distribute on the inner surface with the radius r₁ will be zero,

To learn more about the Gauss law, refer to the link;

brainly.com/question/2854215

#SPJ1

8 0
2 years ago
The Drake equation calculates the number of technically advanced civilizations in the galaxy as a product of seven factors: R* f
juin [17]
The Drake equation calculates the civilization parameter as
R*fp*ne*fl*fi*fc*L = 1 x 1 x 0.1 x 1 x 1 x 1 x 100 = 10.

If each increasable factor is multipled by 10, the result will be
(1*10) x (1*10) x (0.1*10) x (1*10) x (1*10) x (1*10) x (100*10)
= 10 x 10⁷
= 10⁸

Answer: 10⁸



3 0
3 years ago
A horse pulls on an object with a force of 300 newtons and does 12,000 joules of work. How far was the object moved?
ki77a [65]

Answer:

1.

Explanation:

because 12,000 divided by 300 is 40 so its 40m

7 0
3 years ago
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