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3 years ago

1. How do machines make work easier?

Biology

1 answer:

MariettaO [177]3 years ago

4 0

Machines do things more efficiently, Just use time, It gets in the way of work,

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The heart is part of the cardiovascular system and is made of cardiac muscle. Cardiac muscle has special characteristics that di

lakkis [162]

The cardiac muscle is only in the heart because it has special characteristics such as being able to make sustained contractions, coordinated movement, and rapid conduction. Hope this helps!

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3 years ago

Read 2 more answers

The deepest tallest landforms on earth are created at

sleet_krkn [62]

Tectonic plates where they meet

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3 years ago

What is true of carbon atoms? (2 points)

Rudiy27

By process of elimination you can find the right answer. We know for a fact that carbon is found in all living organisms. That is why we talk about carbon based life forms. So the first statement cannot be true. You can figure out how many Valence electrons an element has by looking at the group number. The group number of carbon is 4 so the 2nd statement cannot be true. We know that carbon does bond with other elements because it is not a noble gas and therefore must be able to form compounds.
This means the answer must be they can form up to four covalent bonds

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3 years ago

According to the U.S. Department of Energy, a typical home in the United States uses approximately 900 kWh of electricity per mo

guapka [62]

Based on the energy generated by the power plant annually, the number of households the plant can support:

if energy usage is 10,800 kWh/year = 365000 households
if energy usage is 24000 kWh/year = 164250 households

<h3>What is electrical energy?</h3>

Energy is energy that is due to movement of electrically charged particles.

Electrical energy is used in homes for many purposes.

Electrical energy is sold in units of kWh.

Data provided:

Capacity of power plant = 500 MW

Capacity factor = 0.9

Average annual household energy usage = 10,800 kWh/year

Energy generated in a year = 24 × 365 × 0.9 × 500 MW = 3,942,000 MWh/year

3,942,000 kWh/year = 3,942,000,000 kWh/year.

Number of households the power plant can support = 3,942,000,000 kWh/10800 = 365000 households

Number of households the power plant can support is 365000 households

If monthly electricity usage increases to 1,200 kWh

In a year, energy usage = 1200 × 12 = 24,000 kWh/ year

Number of households the plant can support = 3,942,000,000 kWh/24,000 = 164250 households

Therefore, based on the energy generated by the power plant annually, the number of households the plant can support:

if energy usage is 10,800 kWh/year = 365000 households
if energy usage is 24000 kWh/year = 164250 households

Learn more about about electrical energy at: brainly.com/question/25475663

8 0

3 years ago

The Minnesota Department of Natural Resources has introduced regulations that require the use of approved firewood in state park

enot [183]

Answer:

The correct answer is option B) "To avoid the introduction or spread of insects or disease that damage native trees".

Explanation:

The regulations introduced by the Minnesota Department of Natural Resources include the proper handling of firewood, which prohibits the use of firewood from one protected area into other protected areas. The reason behind this regulation is to avoid the introduction or spread of insects or disease that damage native trees. Each tree in each protected location is adapted to its local fauna. Serious environmental damage could arise from introducing insects from a protected area to another by improper handling of firewood.

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4 years ago