3 years ago

D. 100 mph

Chemistry

1 answer:

Andrej [43]3 years ago

4 0

Answer:

The answer is c

Explanation:

200 divided by 100 is 2 and you can check that by multiplying 2 by 100.

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3. Sarah, who has a mass of 55 kg, is riding in a car at 20 m/s. She sees a cat crossing the street and slams on the brakes! Her

kirza4 [7]

F = (mass)(acceleration) = ma

m = 55 kg

Vi = 20 m/s

t = 0.5 s

Vf = 0 m/s (since she was put to rest)

a=(Vf-Vi)/t

a=(0-20)/5

a = 40 m/s^2 (decelerating)

F = ma = (55 kg)(40 m/s^2)

F = 2200 N

7 0

3 years ago

A tow truck uses a force of 100 N to pull a car 10 meters. How much work was done?

Rainbow [258]

W = F * s
W = 100 * 10
W = 1000 J

In short, Your Answer would be 1000 Joules

Hope this helps!

8 0

3 years ago

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What is the freezing point of silver?

rosijanka [135]

Answer:

1,763°F

Explanation:

I really cant explain it is a little complicated but there is the answer hope it helped you a lot

6 0

3 years ago

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If the [H+] in a solution is 1 × 10–1 mol/L, what is the [OH–]? Show your work.

AVprozaik [17]

Hello!

The basic equations to solve this is
pH = -log[H+]
pOH = -log[OH-]
pH + pOH = 14
------------------------------------------------------------------------------------------------------
Find pH

pH = -log(1 * 10^-1)
pH = 1
------------------------------------------------------------------------------------------------------
Find pOH
1 + pOH = 14

pOH = 13
------------------------------------------------------------------------------------------------------
Find OH-
[OH-] = 10^(-pOH)
[OH-] = 1 * 10^-13mo/L

The answer is $[OH-] = 1 * 10^{-13} mol/L$

Hope this helps!

3 0

4 years ago

P2O5 is a covalent compound used to purify sugar. How many atoms of phosphorus does this compound have? How many atoms of oxygen

Sveta_85 [38]

Answer:Phosphorus: 2

Oxygen:5

Explanation:

Just did it

4 0

4 years ago