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Thepotemich [5.8K]
3 years ago
5

The downward force acting on an object in free fall is the force of

Chemistry
2 answers:
ololo11 [35]3 years ago
7 0
The answer is gravity.
Eduardwww [97]3 years ago
6 0
Gravittyyyyyyyyy ..........................
i was reported but the answer is gravity you can only be reporting if you offering 1000 points but if not please exit stage right
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What is the identity of a metal that has a mass of 27.0 g and a volume of 10.0 cm3?
dexar [7]

The identity of a metal that has a mass of 27.0g and a volume of 10.0cm is Aluminium. That is option B.

<h3>What is molar mass?</h3>

Molar mass is defined as the mass in grams of one mole of an element. This is measured in grams/mole of that substance.

The metal that is 27.0 g and a volume of 10.0 cm3 is aluminium because aluminium is 27 times heavier than 1/12th of the mass of carbon-12 atom.

Therefore, the identity of a metal that has a mass of 27.0g and a volume of 10.0cm is Aluminium.

Learn more about molar mass here:

brainly.com/question/837939

#SPJ1

6 0
2 years ago
A binding protein binds to a ligand L with a Kd of 400 nM. What is the concentration of ligand when Y is (a) 0.25, (b) 0.6, (c)
Mrac [35]

Answer:

(a) 133.33nm

(b) 600nm

(c) 7,600nm

Explanation:

The concentration of Y can be determined by using the formula:

Y = \dfrac{[L]}{k_d+[L]}

where;

[L] = concentration of the binding ligand.

kd = 400 nm

Thus:

When Y = 0.25; we get :

0.25 = \dfrac{[L]}{400+[L]}

0.25 (400 + [L]) = [L]

100 + 0.25[L] = [L]

100 = [L] - 0.25 [L]

100 = 0.75 [L]

[L] = 100/0.75

[L] = 133.33 nm

At, Y = 0.6

0.6 = \dfrac{[L]}{400+[L]}

0.6 (400 + [L]) = [L]

240 + 0.6[L] = [L]

240 = [L] - 0.6 [L]

240 = 0.4 [L]

[L] = 240/0.4

[L] = 600 nm

At, Y = 0.95

0.95 = \dfrac{[L]}{400+[L]}

0.95 (400 + [L]) = [L]

380 + 0.95[L] = [L]

380 = [L] - 0.95 [L]

380 = 0.05 [L]

[L] = 380/0.05

[L] = 7600 nm

4 0
3 years ago
In a ________ change, such as a change of state, the substance as a whole changes, but its underlying structure remain the same.
pav-90 [236]

Answer:

Im pretty sure it is chemical change

4 0
3 years ago
What is the Domain with four kingdoms or organisms that have cells with nuclei?
blondinia [14]
Wym kingdom? I dont get it

3 0
3 years ago
Elements consist of tiny particles called
Nutka1998 [239]
The answer is atoms good luck
4 0
3 years ago
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