Answer:
Aim: To investigate which material of pot will cook food quicker.
Hypothesis: The (aluminum/enamel) pots will cook the food quicker than the (aluminum/enamel) pots.
Apparatus:
- Aluminum pots
- Enamel pots
- Stove top
Variables:
Independent variable (What will be changed) - Material of pot
Dependent variable (What's being measured) - Time taken for food to cook
Controlled variables (What's staying the same) - Size of pot, type of food being cooked, quantity of food being cooked, stove top
Method:
- Place aluminum pot on stove top and turn on stove top
- Cook your chosen food in the pot
- Record time taken for food to cook
- Repeat steps 1-3 another 2 times
- Place enamel pot on stove top and turn on stove top
- Cook chosen food in the pot
- Record time taken to cook
- Repeat steps 5-7 another 2 times
Results: (I don't have results because i never conducted this experiment)
Conclusion: This experiment showed that (aluminum/enamel) pots cooked the food quicker than (aluminum/enamel pots). These results (supported/rejected) my hypothesis.
Evaluation: (Never did the experiment, so there's nothing to evaluate)
Explanation:
I hope this helps :)
Answer:
t = 94.91 nm
Explanation:
given,
wavelength of the light = 522 nm
refractive index of the material = 1.375
we know the equation
c = ν λ
where ν is the frequency of the wave
c is the speed of light
ν = 5.75 x 10¹⁴ Hz
the thickness of the coating will be calculated using
t = 94.91 nm
the thickness of the coating will be equal to t = 94.91 nm
The correct answer to this question is <span>48.8N</span><span> on a bearing of </span><span>134.2 degrees.
In order to solve this, first we need to find the resultant force of the men pulling in the north and south directions:
F = 40 - 6 = 34N [due south - 180]
Then, find the resultant force.
R^2 =34^2 + 35^2
R^2 = 2381
R = sqrt(2381)
R = 44.8N
The angle from the vertical is given by:
tan(x) = 35/34
tan(x) = 1.0294
angle = 45.8 degrees
Taking N as zero degrees, then it bears 134.2 degrees.
</span>
Vocabulary should be, I think:
I. Hypothesis
II. Evidence, data
III. Experiment
What is your question exactly?
Answer:
Try B or C if I'm wrong sorry
Explanation: