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Gennadij [26K]
3 years ago
10

Please help!

Mathematics
1 answer:
Gre4nikov [31]3 years ago
7 0

Answer: 0.3 N

Step-by-step explanation:

Given

Mass of marble is m=10g\ \text{or}\ 0.01\ kg

Required acceleration a=30\ m/s^2

Force is given as the product of mass and acceleration

F=ma

Put the values

F=0.01\times 30=0.3\ N

A force of 0.3\ N is required to launch the marble.

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It would take an hour for plane A to meet plane B which is flying towards it. If the distance between them will be 200 miles aft
sammy [17]
Let a = speed of the plane A, and b = speed of plane B.
(Assume that the net effect of the wind is negligible.)
From the first sentence, the distance between A and B after each travels for 1 hour is a + b miles. From the second sentence, after 45 minutes, or 0.75 hour, the distance between A and B is 200 miles. Plane a has traveled 0.75a, while plane B has traveled 0.75b.
Hence a + b = 0.75a + 0.75b +200
==> 0.25(a + b) = 200.
==> a + b = 800.
Therefore planes A and B are 800 miles apart now.
3 0
3 years ago
Read 2 more answers
Naomi wants to take fitness classes at a nearby gym, but she needs to start by selecting a membership plan. With the first membe
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54+x=12+3x
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4 0
3 years ago
Can you guys help me with this question?
Rasek [7]

Answer:

it represents 10 stars in the galaxies

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10 to the power of 12 would be 1,000,000,000,000, 10 to the power of 11 would be 100,000,000,000, and those two number divided equals simply 10.

8 0
2 years ago
Subtract -5x^2 - 3 from -x - 5
Margarita [4]
      -x-5
  -  -5x^2 - 3

or

(-x-5) - (-5x^2 - 3)

First, distribute the -. So then it becomes

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Since you can't add 5x^2 to -x. You can only combine -5 and 3.
Thus it becomes
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However, you order in exponents so

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would be the correct answer.

4 0
3 years ago
Help me again please <br> 2(36-4t) t= 3.4
olasank [31]
Since we know that t = 3.4 you put 3.4 where the t is.

2 (36 - 4 × 3.4) So what you do first is multiply 4 and 3.4 which gives you 13.6

2 (36 - 13.6) then you subtract 36 and 13.6 which gives you 22.4

2 (22.4) then you multiply 2 and 22.4 which is 44.8.

So your answer is 44.8

I hope that helped!
3 0
3 years ago
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