The correct answer would be
A) Gravel driveway
This is the answer because if you have ever been to an ice skating rink, you know that you can glide quickly on it and if you fall, then you just continue sliding its basically a big waterside. In a bowling alley and an indoor basket ball court, most of the floors are probably waxed and your shoes don't have much of a grip on the floor. If you have ever fallen on a driveway, you would know that with the amount of force that you land on the driveway and the weight that is used, you create a lot of friction because of your skin rubbing against the driveway and you also have the marks to prove it!
Hope this helps and have a wonderful day! :)
Answer:
frequency increases as wavelength decrease.
Explanation:
frequency = velocity/wavelength
Answer:
6633 grams of M are dissolved in 9L
Explanation:
If the compound M has a solubility in acetone of 0.737 g/mL, means that in 1 mLof solution, 0.737 grams of solute is dissolved.
Let's make a rule of three:
9 L = 9000 mL
In 1 mL ___ 0.737 g of M is dissolved
In 9000 mL ___ (9000 . 0.737) /1 = 6633 grams
C₁ * V₁ = C₂ * V₂
18 * V₁ = 6.0 * 250
18 V₁ = 1500
V₁ = 1500 / 18
V₁ = 83.33 mL
hope this helps!
Answer:
The answer to your question is 0.005
Explanation:
Data
Volume of NaOH = 25 ml
[NaOH] = 0.2 M
moles of NaOH = ?
To solve this problem is not necessary to have the chemical reaction. Just use the formula of Molarity and solve it for moles.
Formula
Molarity = moles / volume
-Solve for moles
moles = Molarity x volume
-Convert volume to liters
1000 ml ---------------- 1 l
25 ml ---------------- x
x = (25 x 1) / 1000
x = 0.025 l
-Substitution
moles = 0.2 x 0.025
-Result
moles = 0.005
