PHYSICS HIGH SCHOOL

Density is given in ____.
a. Pa/cm3
c. g/s2
b. N/m2
d. g/cm3

Answers

Answer 1
Answer: Density is defined as  [mass] / [volume] .

The only choice listed with those physical dimensions is 'd' .

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A quantity of a gas is an absolute pressure of 400 K PA in the absolute temperature of 110° Kelvin when the temperature of the gas is raised to 235° Kelvin what's the new pressure of the gas?

Answers

Given:

P1 = 400 kPa
T1 = 110 K

T2 = 235K

Required:

P2

Solution:

Apply Gay-Lussac’s law where P/T = constant

P1/T1 = P2/T2

P2 = T2P1/T1

P2 = (235K)(400kPa) / (110K)

P2 = 855 kPa

Where is the water table located?A. Below the layer of bedrock
B. Under the zone of saturation
C. In the layer of bedrock
D. At the top of the zone of saturation

Answers

The Water table is located D.at the top of the zone of saturation.

♡♡Hope I helped!!! :)♡♡

Which of the following statements are true?A. Energy as heat flows from a lower temperature to a higher temperature
B. Energy as heat flows from a higher temperature to a lower temperature
C. The amount of het in a closed system is constant
D. Energy as heat flowing into an object is determined by the amount of work done on the object.

I know the answer is not C.

Answers

'B' and 'C' are both true.
B. Energy as heat flows from a higher temperature to a lower temperature.

The number of electrons in the outer ring of the elements phosphorus,iodine,vanadium,cobalt,sodium,nitrogen,helium,gold,zinc

Answers

helium will have 2 electrons
sodium will have 1 electron.
m8, the outer shell is called the valence shell, and it can be be found by looking at which peirod the element lies in

A myth that explains the spots on the moon is called

Answers

they arent myths, the spots are called "lunar mare", singular form is mare, but normally you'll hear "maria". 

hope this helps!

A sample that is treated exactly like the other experimental groups except that the variable is not applied to it is a(n) _____. a. observation
b. variable
c. control
d. hypothesis

Answers

This is a "control" - answer c).

You always need a control in an experiment, otherwise you don't know what influenced the changes. Imagine you make children eat more vegetables and they grow - do you know if it's due to vegetables or not? You need to have another group that eats normal amounts of vegetables to compare this. 
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