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natka813 [3]
3 years ago
12

A rock falls from rest a vertical distance of 0.72 meter to the surface of a planet in 0.63 second. What is the magnitude of the

acceleration due to gravity on the planet?
Mathematics
1 answer:
ss7ja [257]3 years ago
7 0
S = 0.72 m,  t=0.63 s
s = a · t² /2
0.72 m = a · (0.63 s )² / 2       
a · 0.3969 s² = 1.44 m 
a = 1.44 m : 0.3969 s² = 3.628 m/s²
The magnitude of the acceleration due to gravity on the planet is 3.628 m/s²

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Feliz [49]

a. because to divide 6 1/4 and 3 you need to make the improper fraction a mixed number so the equation is 25/4  /  3/1  then you get the recipricol of 3 witch is 1/3 then you multiply 1/3 x 25/4  whitch is 25/12=2 1/12

7 0
3 years ago
Write each ratio in simplest form.<br> 1. 33/36
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33 ÷ 3
----------- = 11 / 12.
36 ÷ 3

It's simplest form is 11 / 12.
7 0
3 years ago
14) y = x – 4<br> 4<br> A) 1<br> B)<br> 3<br> C)<br> D) -1<br> 3
denis23 [38]

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the answer is a

Step-by-step explanation:

7 0
3 years ago
30 Points please help!! Please explain too!
sergiy2304 [10]
Initial: 200 feet = opp. side
Angle = 17.31, adj. Side = a
So tan (17.31) = opp. Side / adj. Side
tan (17.31) = 200 / a
--> a = 200/tan17.31 = 641.73
When stopped: adj. Still = a
Opp. Side still = 200, angle = 46.41
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--> a = 200/tan46.41 = 190.39
Now subtract those two distances to get the distance traveled from initial to when it stopped:
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3 0
3 years ago
Two students from a group of eight boys and 12 girls are sent to represent the school in a parade.
harkovskaia [24]
The answer is 62/95. You determine this by calculating the probability of both students being girls. 

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Probability second student is girl: 11/19
Multiply 12/20 * 11/19 = 132/380 or 0.347
Probability of both students not being girls: 1 - 0.347 = 0.653 or 62/95
4 0
3 years ago
Read 2 more answers
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