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2 years ago

As Earth moves around the Sun, its _____ is approximately perpendicular to the force of gravity exerted by the Sun.

Physics

2 answers:

QveST [7]2 years ago

7 0

Answer:

D) Velocity

Explanation:

i think lol..

Bogdan [553]2 years ago

4 0

SORRY i forgot but i think its A because the sun has a really strong gravitational pull

sorry and hope it helps

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To test the performance of its tires, a car

velikii [3]

Answer:

The coefficient of static friction between the tires and the road is 1.987

Explanation:

Given:

Radius of the track, r = 516 m

Tangential Acceleration $a_r$ = 3.89 m/s^2

Speed,v = 32.8 m/s

To Find:

The coefficient of static friction between the tires and the road = ?

Solution:

The radial Acceleration is given by,

$a_{R = \frac{v^2}{r}$

$a_{R = \frac{(32.8)^2}{516}$

$a_{R = \frac{(1075.84)}{516}$

$a_{R = 2.085 m/s^2$

Now the total acceleration is

$\text{ total acceleration} = \sqrt{\text{(tangential acceleration)}^2 +{\text{(Radial acceleration)}^2$

=> $= \sqrt{ (a_r)^2+(a_R)^2}$

=> $\sqrt{ (3.89 )^2+( 2.085)^2}$

=> $\sqrt{ (15.1321)+(4.347)^2}$

=> $19.4791 m/s^2$

The frictional force on the car will be f = ma------------(1)

And the force due to gravity is W = mg--------------------(2)

Now the coefficient of static friction is

$\mu =\frac{f}{W}$

From (1) and (2)

$\mu =\frac{ma}{mg}$

$\mu =\frac{a}{g}$

Substituting the values, we get

$\mu =\frac{19.4791}{9.8}$

$\mu =1.987$

8 0

3 years ago

Which of the following statement describes a nonpolar molecule

Sati [7]

Answer:

Explanation:

what are the statements

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2 years ago

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En el MCU, la aceleración es: a) constante b) Varía en módulo, direccion, y sentido c) constante solo en el módulo d) constante

JulijaS [17]

If you put it into English in the comments I would be more then happy to help you! Thank you!

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2 years ago

1. Which of the following is an accurate statement? A. Step-down voltage transformers have a different number of turns in the pr

Snowcat [4.5K]

'C' is the only true statement on the list.

Step-up voltage transformers have a lower number of turns
in the primary than in the secondary winding.

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2 years ago

Mass is a measure of weight. True False

8_murik_8 [283]

Answer: False

Explanation: Mass is a measure of the amount of matter in an object.

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2 years ago

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