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3 years ago

WILL GET BRAINLIEST!!

Physics

2 answers:

Ket [755]3 years ago

8 0

It’s definitely the 3rd one

Yakvenalex [24]3 years ago

6 0

Answer:

It's the third one because the second is under water the first is fossil so not all areas of geologic and it's not the last its number 3

Explanation:

Using relative and radiometric dating methods, geologists are able to answer the question: how old is this fossil?

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Brainliest for correct answer :))

Triss [41]

Choose the 2nd Option.....

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3 years ago

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Sound waves travel faster in : Group of answer choices

ira [324]

Answer:

its a solid it travals fasters in a solid

Explanation:

6 0

3 years ago

Satellite A is orbiting Earth at an altitude of 500 km and Satellite B is orbiting 800 km above the surface . How does the veloc

sp2606 [1]

The velocity of Satellite A is 2% greater than velocity of satellite B.

The given parameters;

<em>Altitude of Satellite A = 500 km</em>
<em>Altitude of Satellite B = 800 km</em>

The forces acting on the Satellites are given as follows;

$F_c = \frac{mv^2}{r} \\\\F_g = \frac{GMm}{r^2} \\\\\frac{v^2}{r} = \frac{GM}{r^2}\\\\v^2 = \frac{GM}{r} \\\\v^2 r = GM\\\\v_1^2 r _1 = v_2^2 r_2\\\\v_A^2r_A = v_B^2 r_B\\\\(\frac{v_A}{v_B} )^2 = \frac{r_B}{r_A} \\\\\frac{v_A}{v_B} = \sqrt{\frac{r_B}{r_A} } \\\\\frac{v_A}{v_B} = \sqrt{\frac{(800,000\ + \ 6.4 \times 10^6}{(500,000\ + \ 6.4 \times 10^6} )} \\\\\frac{v_A}{v_B} = 1.02 \\\\v_A = 1.02 \ v_B$

$v_A = v_B( 100\% \ + 2\%)\\\\v_A = 100\%v_B \ + \ \ 2\% v_B\\\\v_A = v_B \ \ + \ 2\% v_B$

Thus, the velocity of Satellite A is 2% greater than velocity of satellite B.

Learn more about velocity of satellite here: brainly.com/question/13981089

4 0

3 years ago

Susan goes out to exercise. She runs for one hour at a constant speed and velocity. What is the overall net force acting on Susa

kiruha [24]

Option (A ) is correct.

Explanation:

susan is moving with constant velocity, so both the direction and magnitude of the velocity remains same. so the acceleration of susan =0. This is because an object gets accelerated when either the magnitude or direction of the speed changes.

now the force is given by

$F= ma$

F= force

m= mass

a= acceleration

Here a =0

so F= 0

so the net force on susan is zero.

3 0

3 years ago

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Can you put this image back together? Type the correct order of letters below.

Art [367]

Answer:

CABD

.....................

6 0

2 years ago