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kozerog [31]
3 years ago
9

MIDDLE SCHOOL: What are the three types of energy used when cleaning? (Please write them in order of occurrence)

Physics
1 answer:
tankabanditka [31]3 years ago
7 0

Answer:

Chemical, mechanical, thermal i guess

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3 characteristics of physical change
Nady [450]

Answer:

Explanation:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

5 0
3 years ago
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Sirius and its companion orbit around a common center of mass with a period of 50 years. The mass of Sirius is 2.35 times the ma
s2008m [1.1K]

Answer:

1 solar masses

Explanation:

-Sirius has to maintain equilibrium with it's companion.

-Let x be the mass of Sirius and y be the mass of it's companion.

-From the question, we know that Sirius is 2.35 times heavier than it's companion:

\frac{x}{y}=2.35\\\\\frac{x}{y}=\frac{2.35}{1}

Hence, the mass of it's companion is 1 solar masses

3 0
3 years ago
What chemicals does the body produce to keep neutral pH?
AleksandrR [38]
The body produces Buffers that can neutralize acids
6 0
3 years ago
A wave travels with speed 200 m/s. Its wave number is 1.5 rad/m. What are its (a) wavelength and (b) frequency
Vladimir [108]

Answer:

(a)

Explanation:

5 0
3 years ago
Can someone with an IQ score of 120 be gifted? Based on psychological thought, explain why or why not and give an example. ILL M
Pani-rosa [81]
Hello!

Yes, someone with an IQ score of 120 can be gifted. 

An IQ score of 120 means that the individual is moderately gifted. Although this IQ doesn't qualify for gifted education programs, research shows that people with IQs of about 145-180 don't perform significantly better than people with 120s IQ in terms of success.

As an example, professor Dean Simonton from the University of California found that an optimum leader should have an IQ in the 120-125 range, so having an IQ of 120 would mean that the individual is gifted for leadership.

Have a nice day!
7 0
3 years ago
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