Which of the following hypotheses is written correctly?*

Physics

1 answer:

sweet [91]3 years ago

6 0

Answer:

4 Because Hypothesis sentence always have to be "If" and Then a "then"

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PH is the measure of the:

Morgarella [4.7K]

pH is the measure of the concentration of hydrogen ions in a solution

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3 years ago

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LUCKY_DIMON [66]

I think this is AWESOME, but I think the last sentence of your conclusion is a bit off. <span> "If someone has an allergy to oil then they can still eat cake because applesauce makes an amazing substitute for oil." I think that you should say "This recipe is great for those who cannot eat/drink oil, the applesauce is an amazing substitute for oil."

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3 years ago

If a closed series circuit has a voltage of 12 V and R1 = 4 Ω and R2 = 2 Ω, what is the current running through R1 and R2?

Phantasy [73]

Total resistance=R1+ R2= 6Ω
Voltage=12v
Current = $\frac{voltage}{resistance}$
Current= 2A
In a series circuit, equal current passes through every resistance.
Answer is option A

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3 years ago

A 1000kg car is rolling slowly across a level surface at 1 m/s heading twoards a group o fsmall innocent children. The doors are

Degger [83]

Answer:

The force required to push to stop the car is 288.67 N

Explanation:

Given that

Mass of the car, m = 1000 kg

Initial speed of the car, u = 1 m/s

The car and push on the hood at an angle of 30° below horizontal, $\theta=30^{\circ}$