Which of these is an organism??

Why can’t you use a model to learn everything about an object?

goldenfox [79]

Answer:Models have always been important in science and continue to be used to test hypotheses and predict information. Often they are not accurate because the scientists may not have all the data. It is important that scientists test their models and be willing to improve them as new data comes to light.

Explanation:

3 0

3 years ago

Read 2 more answers

Identify the reactions of the citric acid cycle that provide reducing power for the electron‑transport chain

svet-max [94.6K]

The reactions of the citric acid cycle that provide reducing power for the electron‑transport chain are as follows:

Conversion of isocitrate to α-ketoglutarate
Conversion of succinate to fumarate
Conversion of α-ketoglutarate to succinyl-coA

<h3>What is citric acid cycle?</h3>

Citric acid cycle also known as kreb cycle is a series of biochemical reactions that involves the synthesis of reduced electron carrier and ATP.

The following steps in the citric acid cycle involves the provision of reducing power for the electron‑transport chain:

Conversion of isocitrate to α-ketoglutarate: Isocitrate is converted to α-ketoglutarate as catalyzed by isocitrate dehydrogenase.
Conversion of α-ketoglutarate to succinyl-coA: α-ketoglutarate is converted to succinyl-coA as catalyzed by α-ketoglutarate dehydrogenase.

Learn more about citric acid cycle: brainly.com/question/11459709

7 0

2 years ago

What is the acceleration of a car that goes from zero to 40 m/s in 20 seconds

Ahat [919]

A=v-u/t
a=40-0/20
a=40/20
a=2m/s^2

3 0

2 years ago

Three stars, each with the mass of our sun, form an equilateral triangle with sides 1.0×1012m long. (This triangle would just ab

tatiyna

Answer:

period of rotation is 9.9843 years

Explanation:

Given data

sides = 1.0×10^12 m

to find out

period of rotation

solution

first we use the gravititional formula i.e

F(g) = 2 F cos 30

here F = G × mass(sun)² / radius²

F = 6.67 × $10^{-11}$ × (1.99× $10^{30}$ )² / (1× $10^{30}$ )²

so

F(g) = 2 × 6.67 × $10^{-11}$ × (1.99× $10^{30}$ )² / (1× $10^{30}$ )² × (1.73/2)

F(g) = 4.57 × $10^{26}$ N

and

by the law of sines

r/sin30 = s/sin120

so r will be

r = 1.0×10^12 (0.5/.87)

r = 5.75 × $10^{11}$ m

we know that gravititional force = centripetal force

so here

centripetal force = mv² /r

centripetal force = 1.99× $10^{30}$ v² / 5.75 × $10^{11}$

so

4.57 × $10^{26}$ = mv² /r

4.57 × $10^{26}$ = 1.99× $10^{30}$ v² / 5.75 × $10^{11}$

v² = 4.57 × $10^{26}$ × 5.75 × $10^{11} / 1.99× [tex]10^{30}$

and

v = 11480 m/sec

and we know period of rotation formula

t = d /v

t = 2 $\pi$ r /v

t = 2 × $\pi$ × 5.75 × [tex]10^{11} / 11480

t = 314 × [tex]10^{5} / 31536000 year

t = 9.9843 year

so period of rotation is 9.9843 years

6 0

2 years ago

Carlos plays baseball and wanted to find out the potential energy as a ball gets thrown by the pitcher over time. The table belo

Y_Kistochka [10]

As we know that potential energy of the ball is given as

$U = mgh$

here we know that

m = mass of the ball

g = acceleration due to gravity

h = height of the ball from ground

now as the ball moves upwards the height of the ball will increase while as the ball will go down the height will decrease

So as per above formula we can say that potential energy of the ball will directly depends on the height of the ball and here first height will increase and then height will decrease.

so here correct answer will be

<em>A. As the ball goes to higher heights, the potential energy increases and when it comes back down, the potential energy decreases. </em>

8 0

2 years ago