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Umnica [9.8K]
3 years ago
5

How much times does it take for the first black/clear part to fall through the photo gate timer, starting from the rest? Plastic

strip has 8 black stripes and 8 clear stripes the width of the black/clear pair is 5 cm.
Mathematics
1 answer:
Alik [6]3 years ago
5 0
I can figure out this is a frefall motion.

Starting from rest => Vo = 0

Then, use the equation: d = [1/2]gt^2 => t = √(2d/g)

d = width of a black/clear stripe pair = 5cm = 0.05m

g ≈ 10 m/s^2 (the real value is about 9.81 m/s^2)

t =√(2*0.05m/10m/s^2) =  0.1 s

Answer: approximately 0.1 s
You might be interested in
Need help please! Can someone explain?
Lynna [10]

A=(3.14)r^2

A=(3.14)3^2

A=(3.14)9

A=28.26ft^2

Hope it helps and is correct :)

3 0
3 years ago
Transform the equation to isolate x: ax = bx + 1. How is the value of x related to the difference of a and b? The equation ax =
Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

This is awfully hard to read. Use returns to separate paragraphs.

ax = bx + 1                Subtract bx from both sides.

ax - bx = 1                take out x as a common factor

x(a - b) = 1                Divide both sides by a - b

x = 1 / (a - b)

I think the second one is the one you want.

x is the same as the reciprocal of the difference between a and b.

3 0
3 years ago
What is the area of this triangle?
Iteru [2.4K]

Answer:

A = 1/2(y2-y1) (x3-x1)

A = 21 units^2

Step-by-step explanation:

The area of a triangle is 1/2 bh

Using the left side as the base b= 6 units

This is found by taking (y2-y1)

The height is 7 units, counting from the left side to x3

This is found by taking (x3-x1)

A = 1/2(y2-y1) (x3-x1)

A = 1/2 (6*7)

A = 1/2 *42

A = 21 units^2

6 0
4 years ago
I don't know how to do the problem 6^4 x 10^2 over 6^2 x 2^4.<br> Do you think you could help?
marshall27 [118]
The answer to your question is:  Yes, I think I could help". 
Thank you for the points.

================================

(6^4 x 10^2) / (6^2 x 2^4)

Divide the numerator and denominator by  6^2 ,

(6^2 x 10^2) / (2^4)

6^2  =  36
10^2  =  100
2^4  =  16

Plug these equivalents into the fraction:

(36 x 100) / 16  =  3600 / 16  =  <em>225 </em>.



5 0
3 years ago
Read 2 more answers
Jane sells pillows. For a sale, she marks them down 5%.
mariarad [96]

Two expressions that represent the sale price of the pillows are  (p-0.05p) and 0.95p.

Step-by-step explanation:

Let,

Regular price of pillow = p

Mark down = 5% = \frac{5}{100}=0.05

Amount of mark down = 0.05p

Amount after mark down = Regular price - Mark down amount

Amount after mark down = p - 0.05p

Taking p common = p(1-0.05) = p(0.95) = 0.95p

Two expressions that represent the sale price of the pillows are  (p-0.05p) and 0.95p.

Keywords: mark down, subtraction

Learn more about subtraction at:

  • brainly.com/question/10940255
  • brainly.com/question/10941043

#LearnwithBrainly

6 0
3 years ago
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