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4 years ago

Which will most likely result in the revision of a theory?

Physics

2 answers:

viva [34]4 years ago

4 0

I would say A not 100℅ thou

N76 [4]4 years ago

3 0

<h3>Answer;</h3>

A) the development of new experimental methods

<h3>Explanation;</h3>

A scientific theory refers to a well-substantiated explanation of some aspect of natural world that is based on careful examination facts.
Scientific theories can be tested and refined by additional research, and they allow scientists to make predictions. Development of new experimental methods may lead to revision of a scientific theory.
Additionally, a scientific theory may be revised when new large amount of data refutes it.

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Concave mirror ______the rays of light

Step2247 [10]

Answer: A concave mirror focuses rays of light

Explanation:

3 0

3 years ago

Three bulbs are connected by tubing, and the tubing is evacuated. The volume of the tubing is 45.0 mL. The first bulb has a volu

kipiarov [429]

Answer:

The final pressure of the whole system is 34.80 atm.

Explanation:

Given that,

Volume = 45.0 ml

Volume of first bulb = 77.0 mL

Pressure = 8.89 atm

Volume of second bulb = 250 mL

Pressure = 2.82 atm

Volume of third bulb = 21.0 mL

Pressure = 8.42 atm

We need to calculate the final pressure of the whole system

Using formula of pressure

$P_{1}V_{1}+P_{2}V_{2}+P_{3}V_{3}+P_{t}V_{t}=P_{f}V_{f}$

Where, $P_{1}$ = pressure of first bulb

$P_{2}$ = pressure of second bulb

$P_{3}$ = pressure of third bulb

$P_{4}$ = initial pressure of tube

$V_{1}$ = Volume of first bulb

$V_{2}$ =Volume of second bulb

$V_{3}$ = Volume of third bulb

$V_{4}$ = Initial volume of tube

Put the value into the formula

$8.89\times77.0+250\times2.82+21.0\times8.42+0=P_{f}\times45$

$P_{f}=\dfrac{1566.35}{45}$

$P_{f}=34.80\ atm$

Hence, The final pressure of the whole system is 34.80 atm.

4 0

3 years ago

PLEASE ANSWER! A sound Wave with a frequency of 100.0 Hz travels in water with a speed of 1,500 m/s and then travels in air with

Sedaia [141]

Answer:

Explanation:

12345-7543

8 0

3 years ago

Please need some help on this thank you so much

fomenos

Weight is based on density mass is not.

8 0

4 years ago

During the first part of a trip, a canoeist covered 65 km at a certain speed. He then traveled 27 km at a speed that was 4 km/

vitfil [10]

Answer:

13 km/h for 65 km

9 km/h for the next 27 km

Explanation:

Velocity of canoe =x km/h for 65 km

Velocity of canoe =x-4 km/h for 27 km after covering 65 km

Total time taken = 9 hours

So,

$\frac{65}{x}+\frac{27}{x-4}=8\\\Rightarrow \frac{65(x-4)+27x}{x^2-4x}=8\\\Rightarrow \frac{92x-260}{8}=x^2-4x\\\Rightarrow 11.5x-32.5=x^2-4x\\\Rightarrow x^2-15.5x+32.5=0$

Solving this quadratic equation we get,

$x=\frac{15.5\pm \sqrt{240.25+130}}{2}=13\ or\ 2.5$

Speed cannot be 2.5 as the speed will become negative for the 27 km stretch.

So, velocity of canoe is 13 km/h for 65 km and 9 km/h for the next 27 km

7 0

4 years ago