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romanna [79]
3 years ago
11

Oil can be used to reduce friction.

Physics
2 answers:
WINSTONCH [101]3 years ago
7 0

Answer:

If you're asking if this is true or false, the answer is true.

Explanation:

cestrela7 [59]3 years ago
3 0

Answer:Yes

Explanation: It lower the surface tension between the floor and the object causing friction

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How is the sun related to nuclear electromagnetic and heat energy?
erik [133]
The sun creates nuclear energy in it's core and as a byproduct heat is created. It gives this off in the form of heat and radiation.
7 0
3 years ago
According to a general theory of crime, individuals who engage in crime are also likely to engage in other risky behaviors, for
babymother [125]

Answer:

construct validity

Explanation:

According to my research on studies conducted by various psychologists, I can say that based on the information provided within the question it seems that the researcher is using construct validity. This is the act of measuring or validating what the extent to which a claim is true. In this situation since the claim states that people involved in crimes tend to do speed and drugs, then the researcher compares the criminals responses to those areas to test the validity of the claim.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

6 0
3 years ago
Calculate the number of vacancies per cubic meter at 1000°C for a metal that has an energy for vacancy formation of 1.22 eV/atom
Daniel [21]

To solve this problem, it is necessary to take into account the concepts of the number of vacations N_v at a given temperature as well as the calculation of the number of atom sites per cubic meter.

For definition the number of atomic sites per cubic meter is given as,

N = \frac{N_A\rho}{A}

Where,

N_A = 6.02210^{23}atoms/mol \rightarrow Avogadro's number

\rho density

A = Atomic weight

Replacing with our values we have

N = \frac{(6.02210^{23}atoms/mol)(6.25g/cm^3)(10^6cm^3/m^3)}{37.4g/mol}

N = 1*10^{29}atoms/m^3

At the same time we know that the number of vacancies N_v is defined as,

[tex]N_v = Ne^{-\frac{Q_v}{KT}}[/tex]

Where,

Q_v = Energy of vacancy

K = 8.62*10^{-5} ev/Atom.K \rightarrow Boltzman constant

T = Temperature

Replacing with the values given we have

N_v = (1*10^{29}atoms/m^3)e^{-\frac{1.22eV/atom}{(8.62*10^{-5}eV/atom.K)(1273K)}}

N_v = 1.49*10^{24}m^{-3}

Therefore the number of vacancies per cubit meter at 1000°C is N_v = 1.49*10^{24}m^{-3}

5 0
4 years ago
Traits of an organisms passed from blank to offspring
Ostrovityanka [42]

Answer:heredity

Explanation:

6 0
3 years ago
Pls help
Arte-miy333 [17]

Answer:

sorry I dont now the answer bro i am so sorry xd ;'(

4 0
3 years ago
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