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kow [346]
3 years ago
14

Alonzo and Meg were testing different surfaces to see which one had the least friction. They predicted that the car, seen above,

would travel FASTEST down the ramp when the surface covering had the LEAST friction. Alonzo and Meg used carpet, sandpaper, and glass to cover the ramp. They let the car go, not pushing it, but letting gravity pull the car to the bottom of the ramp. What was/were the controlled variable(s) in the experiment?
Chemistry
2 answers:
denis23 [38]3 years ago
6 0

The control variables of this experiment would be the distance from the top of the ramp to the bottom, the car, and the force of gravity on the car.

Marrrta [24]3 years ago
5 0

Answer:

B) how fast the car moved down the ramp

Explanation:

i just know

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What geologic action may produce a chain of volcanic islands
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The chains of volcanic islands can be found mostly alongside the borders of the convergent plate boundaries, more specifically, on the convergent boundaries between an oceanic and continental tectonic plates. That can easily be seen by the so called ''Ring of Fire'' where there's numerous chains of volcanic islands

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In a certain city, electricity costs $ 0.18 per kW ⋅ h . What is the annual cost for electricity to power a lamppost for 5.00 h
LuckyWell [14K]

Answer:

The cost of electricity  for 100 W power bulb = $ 32.85

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Explanation:

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Time = 5 hour per day

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(b) Cost of electricity for 0.025 W  fluorescent  bulb

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3 years ago
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In this prelab exercise, you will calculate how to prepare solutions that you will make in lab. Below is an example of how to pr
Anastasy [175]

Explanation:

Molarity=\frac{\text{Moles of compound}}{\text{Volume of solution (L)}}

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No. No new substance is formed during Physical change.

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