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

5 0

3 years ago

How many terms are there in 2x+8-7y3

Evgen [1.6K]

There are 3 terms in this expression. You can determine this answer by knowing that terms are either a single number or variable or numbers and variables multiplied together. Here's a picture example below:
Hope it helps! Mark as brainliest!

4 0

3 years ago

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Find the total cost for a $30 bat;15% discount

noname [10]

An item that costs $30, when discounted 15 percent, will cost $25.5. The easiest way of calculating discount is, in this case, to multiply the normal price $30 by 15 then divide it by one hundred. So, the discount is equal to $4.5. To calculate the sales price, simply deduct the discount of $4.5 from the original price $30 then get $25.5 as the sales price.

6 0

3 years ago

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Megan buys a 2-quart bottle of juice for $2.56. What is the unit rate of the cost of the juice?

Mila [183]

Answer: $0.04 per fluid ounce.

Step-by-step explanation:

Let's conver 2 quarts to ounces, as following:

$(2\ quarts)(\frac{32\ ounces}{1\ quarts})=64\ ounces$

You know that she buys a 2-quart bottle of juice (or 64 ounces) for $2.56, therefore, to find the unit rate of the cost of the juice you must divide $2.56 by 64 ounces.

Then, you obtain the following result:

$=\frac{2.56dollars}{64\ ounces}=0.04\frac{dollars}{ounces}$

( $0.04 per fluid ounce)

8 0

3 years ago