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Nikolay [14]
3 years ago
6

Type a sentence or two about early models of telephones. Include its description.

Chemistry
2 answers:
Evgesh-ka [11]3 years ago
8 0

Answer:early models of telephones were used with a twirl of numbers

Explanation:

Not advanced technology

Charra [1.4K]3 years ago
5 0

Answer:

flip phone

Explanation:

they fliped and it was small and u ddint have many games back then it was the phone after the twirling phone

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Select all that apply. Using your periodic table of the elements which chemical symbols indicate an element?
tatuchka [14]

Answer:

O, I, Ca

Explanation:

4 0
3 years ago
Why must power plants spend so much money and be so cautious in dealing with these materials?
shepuryov [24]
If you are referring to nuclear power plants and radioactive materials, then there is a high necessity to be cautious and stay safe because only by being safe you can prevent accidents like those caused in Ukraine and Japan. Unlike other types of power plants whose destruction in case of an accident can relatively easily be contained, nuclear power plants are extremely difficult to manage if things go out of hand since you can destroy the air around it, the water, the food by ruining the soil, and many other things.
8 0
3 years ago
A sample of an ideal gas at 1.00 atm and a volume of 1.87 L was placed in a weighted balloon and dropped into the ocean. As the
Ludmilka [50]

Answer:

Volume of sample after droping into the ocean=0.0234L

Explanation:

As given in the question that gas is idealso we can use ideal gas equation to solve this;

Assuming that temperature is constant;

Lets P_1 and V_1 are the initial gas parameter before dropping into the ocean

and P_2 and V_2 are the final gas parameter after dropping into the ocean

according to boyle 's law pressure is inversly proportional to the volume at constant temperature.

hence,

P_1V_1=P_2V_2

P1=1 atm

V1=1.87L

P2=80atm

V2=?

After putting all values we get;

V2=0.0234L

Volume of sample after droping into the ocean=0.0234L

7 0
3 years ago
cheryl has $56 and wants to buy as many notebooks as she can to donate to her school. if each notebook costs $1.60, which inequa
postnew [5]
Amount of money that Cheryl has = $56
Cost of each notebook = $1.60
The maximum number of notebooks she can buy = n
Then

n = 56/1.6 

is the inequality that shows the maximum number of notebooks she can buy with her money

On solving the inequality, we get
n = 35 notebooks.
6 0
3 years ago
Read 2 more answers
How do I do question number 4?
lisabon 2012 [21]
I hope you understood
hit me up if you have any other questions :>

6 0
3 years ago
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