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Jet001 [13]
3 years ago
13

Which property of a substance can be determined using a pH indicator?

Physics
2 answers:
Tanzania [10]3 years ago
7 0

Answer: B

Explanation:

pH has to do with properties of water

Novay_Z [31]3 years ago
4 0

Answer: B

Explanation: hope it's right.

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Please check my work
Andrej [43]

Answer:

All correct

Explanation:

7 0
3 years ago
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Anyone who is in class 6?​
Rudik [331]

Answer:

hey I am in class 6 why did you ask

6 0
3 years ago
What is the nucleon A number of carbon-14?Express your answer as aninteger.
Deffense [45]

Answer:

14

Explanation:

The total no of protons and neutrons in an atomic nucleus is called mass number, nucleon number or atomic mass number. It is denoted by A.

In this problem, we need to find the nucleon number of carbon-14 i.e. mass number of carbon -14. 14 with carbon shows its mass number.

Hence, the nucleon no of carbon-14 is 14.

7 0
3 years ago
Suppose that Lisa walks her dog around the block for a little exercise. The block is 1 mile around. If she walks around the bloc
natita [175]
Displacement only measure how far between the starting and ending point. In this case, Lisa walks around the block as a circle so the starting point is the same as the ending point. Thus, displacement is 0mile.
On the other hand, distance measures exactly how far she walks. In this case, the distance is 1 mile, same as the perimeter of the block.
7 0
3 years ago
A 1420-kg car is traveling with a speed of 12.4 m/s. What is the magnitude of the horizontal net force that is required to bring
zzz [600]

Answer:

1419.01436 N

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-12.4^2}{2\times 78}\\\Rightarrow a=-0.98564\ m/s^2

The force on the car

F=ma\\\Rightarrow F=1420\times -0.98564\\\Rightarrow F=-1419.01436\ N

Magnitude of the horizontal net force that is required to bring the car to a halt is 1419.01436 N

3 0
3 years ago
Read 2 more answers
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