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crimeas [40]
3 years ago
14

A student has two identical sheets of paper. he crumples one up into a small ball. if he drops the sheet of paper and the ball o

f paper off a building at the same time, which will reach the ground first and why?
Mathematics
2 answers:
Anna [14]3 years ago
8 0
The small ball will because air resistance has less effect on it than it does on the piece of paper.  Physics 101 here.  I love Physics!
Vilka [71]3 years ago
5 0
The air resistance acting on the un-crumbled sheet is greater.
You might be interested in
The difference between the square of two numbers is five. Twice the square of the second number is subtracted from three times t
svet-max [94.6K]
Let us assume the first number to be = x
Let us assume the second number to be = y
Then
x^2 - y^2 = 5
x^2 = y^2 + 5
And
3x^2 - 2y^2 = 19
Multiplying the first equation by -2, we get
- 2x^2 + 2y^2 = - 10
Now subtracting the two equations, we get
x^2 = 9
x = 3
Putting the value of "x" in the first equation, we get
(3)^2 - y^2 = 5
9 - y^2 = 5
y^2 = 4
y = 2

I hope that the procedure is clear enough for you to understand and this is the answer that you were looking for.
5 0
3 years ago
1) Let f(x)=ax2+bx+c for some value of a, b and c. f intersects the x-axis when x=−2 or x=3, and f( 1 3 )=−25. Find the values o
antiseptic1488 [7]

Answer:

1) a = -⅙, b = ⅙, c = 1

2) 6 units

Step-by-step explanation:

1) f(x) = ax² + bx + c

Given the roots, we can write this as:

f(x) = a (x + 2) (x − 3)

We know that f(13) = -25, so we can plug this in to find a:

-25 = a (13 + 2) (13 − 3)

-25 = 150a

a = -⅙

Therefore, the factored form is:

f(x) = -⅙ (x + 2) (x − 3)

Distributing:

f(x) = -⅙ (x² − x − 6)

f(x) = -⅙ x² + ⅙ x + 1

Graph: desmos.com/calculator/6m6tjoodvb

2) Volume of a right prism is area of the base times the height.

V = Ah

The base is an equilateral triangle.  Area of a triangle is one half the base times height.

V = ½ ab h

The height of the triangle is the same as the height of the prism.

V = ½ bh²

In an equilateral triangle, the height is equal to half the base times the square root of 3.

V = ½ b (½√3 b)²

V = ⅜ b³

Given that V = 81, solve for b.

81 = ⅜ b³

216 = b³

b = 6

5 0
3 years ago
Write an algebraic expression for 3 times x 2 times x minus 4 times x
Tpy6a [65]

Answer:

(3+2)x - 4x

Step-by-step explanation:

I just converted the words, turned them to operations and that's it!

Hope this helps! :D

- Anna

8 0
3 years ago
Brainliest, could you help me with the scientific notation
Minchanka [31]

Answer:

1. 2.13 x 10^-1

2. 8.9 x 10^-2

3. 5.7 x 10^-5

4. 2.84 x 10^4

5. 8.1 x 10^-5

6. 2.65 x 10-5

Step-by-step explanation:

Good luck! Brainliest is always appreciated!

Sincerely,

Philip

3 0
2 years ago
Ashlynn rides her bike 2 miles to school and 2 miles home each day. How many total miles will Ashlynn ride her bike to school an
skad [1K]

Answer:

160

Step-by-step explanation:

2+2=4

4 x 40= 160

4 0
2 years ago
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