D= ((vf+vi)/2) t
Solve for vi

Answers

Answer 1

Answer: D= ((vf+vi)/2) t

D = (vf +vi)*t/2

2*D = (vf +vi)*t

2D/t = vf +vi

vf +vi = 2D/t

vi = 2D/t - vf

Answer 2

Answer: = t(Vf + Vi/2)
Vf + Vi/2 = d/t
Vf = (d/t) - Vi/2

Answer: Vf = (d/t) - Vi/2 OR (2dt - Vit)/2t

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The material in which a wave travels is called ____.a. a medium
c. air
b. water
d. opaque

Answers

The material in which a wave travels is called a medium. Hope this helps!

Hey there the answer is medium

Name three devices that can store electric potential energy

Answers

Potential energy, unlike kinetic, is stored energy. This energy comes from different sources. An object with potential energy also has the ability to produce energy if something triggers it. Example, a charged battery, a car on top of a hill, and capacitors.

Up to 80% of doctors endorse this project "uses which rhetorical device"

Answers

the correct answer is this one: "A. Euphemism." Up to 80% of doctors endorse this project" uses Euphemism as a rhetorical device.
Here are the choices.
A. Euphemism
B. Weasel Words
C. Proof Surrogate
D. Innuendo
E. Hyperbole

Answer;

Proof Surrogate.

Explanation;

A claim masquerading as proof or evidence, when no such proof or evidence is actually being offered.

Proof Surrogate is an expression used to suggest that there is evidence for a claim without actually citing any evidence. For example;

-“Scientists have known that aliens exist for years now.”

-“Everyone knows that bottled water is better for you than tap water.”

Dua buah vektor, yaitu P= 6i-5j+2k dan Q = 2i+2j+8k. Tentukan vektor R agar P-Q+R=0. Hitung pula besar vektor R?

Answers

As it is given to us

$P = 6i - 5j + 2k$

$Q = 2i + 2j + 8k$

also it is given that

P - Q + R = 0

so here we can rearrange it to find the value of R

$R = Q - P$

so here we have

$R = (2i + 2j + 8k) - (6i - 5j + 2k)$

$R = -4\hat i + 7\hat j + 6\hat k$

so the vector is given by above equation

Answer:

R= -4 i + 7 j + 6 k

Explanation:

Being P - Q + R = 0, solving for R you get:

R= Q - P

You know:

P=6 i - 5 j + 2 k
Q=2 i + 2 j + 8 k

Replacing the expressions of P and Q you get:

R= (2 i + 2 j + 8 k) - (6 i - 5 j + 2 k)

i, j and k indicate that the values correspond to the x, y and z components respectively. To subtract the vectors, their respective components are subtracted from each vector. So in this case:

R= (2-6) i + [2-(-5)] j + (8-2) k

So the answer is:

R= -4 i + 7 j + 6 k

A scientist wants to learn about Earth's oceans. Which of the following spheres should she most directly study? (2 points)
Oa
Atmosphere
Ob
Cryosphere
Oc
Geosphere
Od
Hydrosphere

Answers

Hydrosphere - all the waters on the earth’s surface.

a. Define Valency. b. Write the symbol and valency of the following : (i) Oxygen (ii) potassium 7. a. Magnesium burns in Oxygen to form Magnesium Oxide. a) Name the reactants b) Name the Products c) Write the word equation for the above reaction.

Answers

⚘ YourAnswers:

A) Valency is the combining capacity of any element. Valence electrons refers to the electrons found in the outermost shell of the atom of the element.

B) Symbol and valency: