Which of the following statements is not true regarding atmospheric pressure?

Answers

Answer 1

Answer:

Answer:

Atmospheric pressure increases with increasing altitude

Explanation:

Atmospheric pressure decreases with increasing height (altitude).

Ideally, there are no options given here with which the question can be answered, however after searching the question on google, a similar question popped up on two websites with the same set of options. doubnut.com and weegy.com and the options are;

A. Mercury and aneroid barometers are used to measure atmospheric pressure.

B. You calculate absolute pressure by adding atmospheric pressure to gauge pressure.

C. Atmospheric pressure increases with increasing altitude.

D. When atmospheric pressure is higher than the absolute pressure of a gas in a container, a partial vacuum exists in the container

Answer 2

Answer: When atmospheric pressure is higher than the absolute pressure of a gas in a container.

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Determine the potential difference between two charged parallel plates that are 0.20 cm apart and have an electric field strength of 6.0 V/cm.

Answers

$V=Ed=0.20* 6=1.20$

V=E d
d=.20 cm
E=6 V/cm
V=.20×6
=1.2 V

Short answerYou are provided a 20-mL solution of methanol and water.
a. Name the technique that you would use to separate and identify the components of the solution.
b. Provide specific details of the method used.
c. State the advantage of the method you choose.

Answers

a. you can separate the components through chromatographic techniques (GC or HPLC). The advatage of using a high-tech chromatography equipment is the simultaneous separation - contents analysis.

b. chromatography is an affinity based separation which means using specific adsorbents, it can separate the component with a higher affinity to the adsorbents.

c. the advantage of which is the precision as well as the simultaneous separation and contents analysis.

A body oscillates with simple harmonic motion along the x-axis. Its displacement varies with time according to the equation x = 0.5 sin (pt+p/3). The acceleration (in m/s2) of the body at t = 1.0 s is approximatelya. 3.5
b. 49
c. 14
d. 43
e. 4.3

Answers

I'll tell you how I look at this, although I may be missing something important.

Position = x(t) = 0.5 sin(pt + p/3)

Speed = position' = x'(t) = 0.5 p cos(pt + p/3)

Acceleration = speed' = position ' ' = x ' '(t) = -0.5 p² sin(pt + p/3)

At (t = 1.0),

x ' '(t) = -0.5 p² sin( 4/3 p )

In order to evaluate this, don't I still have to know what 'p' is ? ?

I don't think it can be evaluated with the information given in the question.

Find the volume of a box with length 25 cm, height 25 cm and width 1.0 m.

Answers

Before finding the volume, it is always good to change the units as same.
length 25cm
height 25cm
width 100cm

volume
length * height * width
25 * 25 * 100
62500 cm^3

5. A graduated syringe contains air. It is put in a freezer to cool it down. When it is removed from the freezer the piston has moved inwards. A. B. C. D. cm 3 cm 0.6 kg/m³ 1.2 kg/m³ 2.4 kg/m³ 4.8 kg/m³ 2 3 The density of the air in the syringe when cooled is 2.4 kg/m³. What was the density of the air at room temperature? piston syringe when cooled syringe at room temperature

Answers

Answer:

The change in the density of the air inside the syringe is due to the change in temperature. When the air inside the syringe is cooled, it contracts, causing the density to increase.

The principle that explains this phenomenon is known as Charles's Law, which states that the volume of a gas is directly proportional to its temperature, provided the pressure and the amount of gas remain constant.

In this case, the density of the air doubles when the syringe is cooled, implying that the volume of the air inside the syringe is halved. Therefore, if the density of the air when cooled is 2.4 kg/m³, the density of the air at room temperature (when the volume is twice as much) would have been half of this value, or 1.2 kg/m³.

So, the density of the air at room temperature was 1.2 kg/m³.

What is the current when a 71-W lamp is connected to 120 V?

Answers

Power = (voltage) · (current)

71 W = (120 V) · (current)

Divide each side by (120 V) :

Current = (71 W) / (120 V) = 0.59167 Amperes

What I want to know is: Where can I buy a 71-W light bulb ?

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