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cricket20 [7]
3 years ago
14

PLSS HELP ASAP TYSM <33 SORRY I COULDN'T FIND SCIENCE LOLL ​

Mathematics
1 answer:
dimaraw [331]3 years ago
5 0

Answer:

Rock D.

Step-by-step explanation:

We can assume that the force that the catapult does is always the same.

So, here we need to remember Newton's second law:

F = m*a

force equals mass times acceleration.

Where acceleration is the rate of change of the velocity.

So, if we want the rock to hit closer to the catapult, the rock must be less accelerated than rock B.

So, we can rewrite:

a = F/m

So, as larger is the mass of the rock, smaller will be the acceleration of the rock after it leaves the catapult (because the mass is in the denominator). So if we want to have a smaller acceleration, we need to choose a rock with a larger mass than rock B.

Assuming that the mass depends on the size, the only one that has a mass larger than rock B is rock D.

So we can assume that rock D is the correct option.

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The physical plant at the main campus of a large state university recieves daily requests to replace fluorescent lightbulbs. The
Bond [772]

Answer:

34% of lightbulb replacement requests numbering between 47 and 52

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 52

Standard deviation = 5

Between 47 and 52:

52 is the mean and 47 is one standard deviation below the mean.

By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean.

Since the normal distribution is symmetric, of those, 34% are within 1 standard deviation below the mean and the mean(47 and 52) and 34% are within the mean and one standard deviation above the mean(52 and 57).

So

34% of lightbulb replacement requests numbering between 47 and 52

3 0
3 years ago
If a number has no factors other than 1 and number itself, then the number is(a) composite(b) prime (c) do not find anything (d)
xenn [34]

Answer:

THe answer is prime number

4 0
2 years ago
1 + 1 - 1 = ?<br> For fun- <br> .........
coldgirl [10]

Answer:

1+1=2-1=1

Step-by-step explanation:

lol, this is the hardest question I've done today.

8 0
2 years ago
Read 2 more answers
Alguien me podría ayudar
BaLLatris [955]

Answer:

yessir

Step-by-step explanation:

7 0
3 years ago
What is the value of 'c' so that -9 and 9 are both solutions of x^2+c=103?
Gnoma [55]

Answer:

c = 22

Step-by-step explanation:

x^2 + c = 103 so if x is either + or - 9, x^2 = 81 so...

81 + c = 103

c = 22

4 0
3 years ago
Read 2 more answers
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