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3 years ago

What are wildfires? (With detail)

Biology

2 answers:

Anestetic [448]3 years ago

7 0

Answer:

A wildfire is an unplanned fire that burns in a natural area such as a forest, grassland, or prairie. Wildfires are often caused by human activity or a natural phenomenon such as lightning, and they can happen at any time or anywhere. In 50% of wildfires recorded, it is not known how they started.

SpyIntel [72]3 years ago

5 0

Answer:

sự kiện lửa phát sinh trong một khu rừng, tác động hoặc làm tiêu hủy một số hoặc toàn bộ các thành phần của khu rừng đó.

Explanatin

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A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur

mote1985 [20]

Answer: The weight of the person above the surface of a planet is 635.83N.

Explanation:

To calculate the weight of a person, we use the formula:

$w=mg$ ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

$g=\frac{GM}{r^2}$

where, g = acceleration due to gravity = $?m/s^2$

G = Universal gravitational constant = $6.67\times 10^{-11}Nm^2/kg^2$

M = mass of the planet = $5.97\times 10^{24}kg$

r = distance of the person from the planet = $6.38\times 10^6m$

Putting values in above equation, we get:

$g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2$

Putting this value in equation 1, we get:

$w=65kg\times 9.782m/s^2=635.83N$

Hence, the weight of the person above the surface of a planet is 635.83N.

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3 years ago

Which of the following is an example of a population

Marat540 [252]

I need to have some choices

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"a pedal steel guitar uses foot pedals and knee levers. what do they do?"

vfiekz [6]

A pedal steel guitar uses foot pedals and knee levers. It allows the player to change pitches with his feet and knees (apex). A pedal (or foot pedal) is something you can use if you want to alter the sound coming from your guitar or add various sound effects.

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3 years ago

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Select all that apply. Select the elements which are considered trace elements in the human body. oxygen fluorine nitrogen iodin

rosijanka [135]

Fluorine(fluoride) and iodine apply as trace elements in human body

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3 years ago

What happens in the ribosome during the process of translation?

eduard

What happens in the ribosome during the process of translation?

　- DNA replicates itself