At its closest point, Mercury is approximately 46 million kilometers from the sun. What is this distance in AU?

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Answer 1

Answer: This problem can be solved using the following relation: 1 kilometer = 6.6846e-9 AU. Since we are already given the number of kilometers, we simply have to multiply it to its equivalent in AU to solve for the equivalent distance. This is done below:

46 000 000 * 6.6846e-9 = 0.3 AU

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What is a normal force?

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is the component perpendicular to the surface on contact of the contact force

A thermometer is placed in water in order to measure the water’s temperature. What would cause the liquid in the thermometer to drop?. . .a.The molecules in the water spread apart. . .
b.The molecules in the thermometer’s liquid spread apart.. .
c.The kinetic energy of the water molecules decreases. .
d.The kinetic energy of the thermometer’s liquid molecules increases

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The correct answer should be c.The kinetic energy of the water molecules decreases.

If the temperature drops that means that the molecules are coming together. If the temperature rises then it means that the molecules are spreading. If the kinetic energy falls down that means that they are slower which means that they are cooler.

Answer: The correct answer is (c).

Explanation:

Thermometer is a device which measures the temperature.

Temperature is a measures of the average kinetic energy of the particles in the substance. It measures how the hot or cold an object is.

In the given problem, a thermometer is placed in water in order to measure the water’s temperature. When the kinetic energy of the water molecules decreases then the thermometer shows the drop in the temperature.

When the kinetic energy of the water molecules increases then the thermometer shows the rise in the temperature.

Therefore, the correct option is (c).

suppose that i suspect that running my ceiling fan stirs up dust and causes my table to become dusty. how could i use the method of concomitant variations to confirm this?

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The use the method of concomitant variations we need to identify the variables, establish a baseline, introduce variation and compare results.

To use the method of concomitant variations to confirm whether running your ceiling fan stirs up dust and causes your table to become dusty, follow these steps:

1. Identify the variables: In this case, the independent variable is the operation of the ceiling fan (on or off), and the dependent variable is the dust accumulation on your table.

2. Establish a baseline: Observe the dust accumulation on your table when the ceiling fan is off for a specific period, let's say 24 hours. Document the amount of dust on the table.

3. Introduce variation: Turn on the ceiling fan and observe the dust accumulation on your table for the same period (24 hours). Document the amount of dust on the table.

4. Compare results: Compare the dust levels on your table when the ceiling fan was off versus when it was on. If there is a concomitant (simultaneous) increase in dust accumulation when the fan is on, this suggests a relationship between the operation of the ceiling fan and the dust on your table.

5. Repeat the process: To strengthen your evidence, perform the same experiment multiple times, alternating between turning the fan on and off. If the pattern of increased dust accumulation consistently occurs when the fan is on, this further supports the hypothesis that the ceiling fan stirs up dust and causes your table to become dusty.

To learn more about Concomitant variations, visit:

brainly.com/question/31081818

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A measure of randomness or disorder

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It is simply called Entropy.

a measure of randomness or disorder is entropy

The odometer gauge indicates the ________________.

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The odometer gauge indicates the ________________.

the distance traveled.

A speeder passes a parked police car at a constant speed of 23.3 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.75 m/s 2 . How much time passes before the speeder is overtaken by the police car? Answer in units of s.

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Answer:

32s

Explanation:

We must establish that by the time the police car catches up to the speeder, both have travelled a certain distance during the same amount of time. However, the police car experiences accelerated motion whereas the speeder travels at a constant velocity. Therefore we will establish two formulas for distance starting with the speeder's distance:

$x=vt=23.3(m)/(s)t$