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never [62]
3 years ago
15

The pH of acid rain would be _____. greater than 7 less than 7 exactly 7 exactly 14

Physics
2 answers:
Nookie1986 [14]3 years ago
7 0
Less than 7, Ph of 7 is neutral Acid Rain would be between 4 and 0. 
guapka [62]3 years ago
7 0

Answer:

Less than 7.

Explanation:

pH scale in chemistry is used to measure the concentration of hydrogen ion. In other words, it is used to measure the extent of acidity or alkalinity of any solution. The pH scale having numbers that range from 0 to 14. The acidic solution has a lower pH value while the basic solution has a higher pH. The pH value of pure water is 7.

As the name implies acid rain, it is formed by the combination of sulfur and nitrogen oxides. The pH of acid rain is less than 7. Typically its value is 4.  

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The velocity selector in in a mass spectrometer consists of a uniform magnetic field oriented at 90 degrees to a uniform electri
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Answer:

50k/h is the answer to iy

3 0
3 years ago
A team of dogs accelerates a 290kg dogsled from 0 to 6.0m/s in 3.0 s. Assume that the acceleration is constant.Part AWhat is the
Mademuasel [1]

Answer:

(a) a=2m/sec^2

(b) 5220 j

(c) 1740 watt

(d) 3446.66 watt

Explanation:

We have given mass m = 290 kg

Initial velocity u = 0 m/sec

Final velocity v = 6 m/sec

Time t = 3 sec

From first equation of motion

v = u+at

So a=\frac{v-u}{t}=\frac{6-0}{3}=2m/sec^2

(a) We know that force is given by

F = ma

So force will be F=290\times 2=580N

(b) From second equation of motion we know that

s=ut+\frac{1}{2}at^2=0\times 3+\frac{1}{2}\times 2\times 3^2=9m

We know that work done is given by

W = F s = 580×9 =5220 j

(c) Time is given as t = 3 sec

We know that power is given as

P=\frac{W}{t}=\frac{5220}{3}=1740Watt

(d) Time t = 1.5 sec

So P=\frac{W}{t}=\frac{5220}{1.5}=3466.66Watt

5 0
4 years ago
How do I solve for this?
vova2212 [387]
I can’t see anything
7 0
2 years ago
An object is thrown upward from the edge of a tall building as with a velocity of 10m/s. where will the object be 3s after it is
KonstantinChe [14]
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6 0
3 years ago
The box of a well-known breakfast cereal states that one ounce of the cereal contains 113 Calories (1 food Calorie = 4186 J). If
mafiozo [28]

Answer:

m=454.73 kg

Explanation:

To convert the energy of the cereal to know the weight:

m*g*h=Q'

Cal=0.0179*113 Cal=2.0227Cal

Q'=2.0227Cal*\frac{4186J}{1Cal}

m*g*h=8467.02J

m*g=\frac{Q'}{h}=\frac{8467.02J}{1.90m}

m*g=4456.33 N

Supuse the gravity as a g=9.8m/s^2

m=\frac{4456.33N}{9.8m/s^2}

m=454.73 kg

3 0
3 years ago
Read 2 more answers
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