All categories

2 years ago

According to this equation, F=ma, how much force is needed to accelerate a 65-kg runner at 8m/s2?

Biology

2 answers:

solong [7]2 years ago

8 0

Answer:

B 520N

Explanation:

Alchen [17]2 years ago

6 0

Because F=ma,
F=65×8
∴F=520N

Force is measured in Newtons (N), and so the answer is B and not C (m/s is a unit for velocity)

You might be interested in

The electron transport chain is considered an aerobic pathway. True or False

sveta [45]

Answer:True

Explanation:the electron transport chain can be considered to be an aerobic pathway because it utilizes free oxygen as its final electron acceptor. These free oxygen is liberated by intermediate glucose molecules.

6 0

2 years ago

Help pleaseeeeeeeeeeeeeeeeeee

nasty-shy [4]

Answer:

Cells produce energy by breaking down sugar and other molecules in the presence of oxygen to produce ATP. So the answer is "B".

Explanation:

The process of producing ATP in animal cells occurs through cellular respiration. Various processes occur in this which involve the presence or absence of oxygen. Glycolysis in the presence of oxygen leads to the production of two molecules of ATP. Glucose is broken down into pyruvate and water.

In citric acid cycle, acetyl coA is utilized to produce <u>2ATP, 6NADH and 2FADH molecules.</u>

Finally oxidative phosphorylation occurs in mitochondria. With the help of electron transport chain, ATP is synthesized by ATP synthase enzyme.

7 0

2 years ago

What is the original source of almost all energy in most ecosystem

lorasvet [3.4K]

Sunlight is the original source of almost all energy in most ecosystem.

4 0

2 years ago

Darwin examined remains of extinct organisms while on his journey. The remains had been preserved in rock for a very long time.

garri49 [273]

The remains are called fossils. Fossils are remnants of animals, plants, or microorganisms that have been solidified in the process of fossilization, where the organism is surrounded by sediment, minerals, and other solid objects which are compressed and heated around the organism over time. This forms a solid mass with the preserved organism inside, other known as a fossil.

4 0

2 years ago

Clara is a vegan and she does not drink milk, a food advertised as a best source of calcium. But she is not worried too much sin

marysya [2.9K]

Explanation:

%DV label= 27%

1 cup of cooked collared greens= aprx 266.60 mg of Calcium

Assuming Clara is...

a teen, her required adequate intake (RAI)= 1300 mg/ day
an adult, her RAI= 1000 mg/day

For teenaged Clara

∵27 % DV= 270mg

% daily Calcium= $\frac{270}{1300} * 100=$ = 20.8 ≈ 21%

=0.21

<u>21% of her daily calcium needs is in a cup of cooked collard greens.</u>

Calcium is an essential mineral required by the human body, it is involved in cell signalling, muscular function and homeostasis. Along with fats, fiber, vitamin A and C and iron, calcium makes up part of a recommended daily intake target or DV- these are integral to a balanced diet.