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3 years ago

Which or the following is a science ? A. Physics B.astrology C. Football statics D. Language studies

Physics

2 answers:

d1i1m1o1n [39]3 years ago

8 0

A. Physics

The study of how objects interact with each other

V125BC [204]3 years ago

5 0

Definetly Physics...........

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The x component of vector is -27.3 m and the y component is +43.6 m. (a) What is the magnitude of ? (b) What is the angle betwee

lara [203]

Answer:51.44 units

Explanation:

Given

x component of vector is $-27.3\hat{i}$

y component of vector is $43.6\hat{j}$

so position vector is

$r=-27.3\hat{i}+43.6\hat{j}$

Magnitude of vector is

$|r|=\sqrt{27.3^2+43.6^2}$

$|r|=\sqrt{2646.25}$

|r|=51.44 units

Direction

$tan\theta =\frac{43.6}{-27.3}=-1.597$

vector is in 2nd quadrant thus

$180-\theta =57.94$

$\theta =122.06^{\circ}$

4 0

3 years ago

Does heat flow towards cold?

Liula [17]

Answer:

And unless people interfere, thermal energy — or heat — naturally flows in one direction only: from hot toward cold. Heat moves naturally by any of three means. The processes are known as conduction, convection and radiation. Sometimes more than one may occur at the same time.

4 0

3 years ago

Aiden takes 0.10s to throw a baseball, which leaves his hand with a velocity of 49m/s. The balls acceleration is

Brums [2.3K]

Since the ball was not moving before it let Aiden's hand, the formula used to calculate the acceleration is
$a = \frac{v}{t}$
, where a is acceleration, v is velocity and t is the time. We put them in the formula and get
$a = \frac{49}{0.1} \\ a = \frac{490}{1} \\ a = 490$
The acceleration is 490 m/s^2

7 0

3 years ago

Identifying Characteristics Common to All Protists Use the drop-down menus to complete the statements. All protists live in envi

Annette [7]

Answer:

Use the drop-down menus to complete the statements.

All protists live in environments that are

✔ wet

All protists must

✔ reproduce

All protists have

✔ a nucleus

All protists make or consume

✔ food

Explanation:

I got it right hope its the right one

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gtnhenbr [62]

The answer would most likely be A since obviously gravity weighs things down which helps the every other masses stay settled in place

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3 years ago

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