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ahrayia [7]
3 years ago
15

Why do the 8 phases of the moon occur

Chemistry
1 answer:
nadya68 [22]3 years ago
4 0
The phases of the moon occur because the moon orbits earth which causes the portion illuminated to change. The earth casts changing angles on the moon causing portions to be illuminated or dark.
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.A gas occupies 25,3 mL at a pressure of 152 kPa. Find the volume if the pressure is
Strike441 [17]

Answer:

47.36mL

Explanation:

Using Boyles law equation, which states that:

P1V1 = P2V2

Where;

V1 = initial volume (mL)

V2 = final volume (mL)

P1 = initial pressure (atm)

P2 = final pressure (atm)

Based on the provided information, V1 = 25.3mL, P1 = 152 kPa, V2 = ?, P2 = 0.804atm

First, we need to convert 152kPa to atm by dividing by 101

1kPa = 0.0099atm

152kPa = 1.505atm

P1V1 = P2V2

1.505 × 25.3 = 0.804 × V2

38.08 = 0.804V2

V2 = 38.08/0.804

V2 = 47.36mL

5 0
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After leaving the cockroaches in their metabolic chamber for one hour the gases in the chamber was measured. The fraction of oxy
Snezhnost [94]
I think it's B

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8 0
3 years ago
Which of the following best demonstrates kinetic energy?
Novay_Z [31]

Hey there!

Kinetic energy means that something is in motion.

Therefore, the answer would be B. Bird in flight because it’s the only choice that suggests is moving.

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3 0
3 years ago
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How many meters did a car travel if it went 65mi/hr for 4.5 hours?
Law Incorporation [45]

Answer:

292.5

Explanation:

65x4=260

65 divded  by 2 = 32.5

260+32.5=292.5

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3 years ago
School Math. Homework.
Ksju [112]

Answer:

The answer is TRUE!!!

Explanation:

Please mark brainliest... btw try online school... you can do the easiest thing such as: learning photography, basic drawling, digital art and design, web design, painting for beginers, fitness, etc.

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3 years ago
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