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postnew [5]
3 years ago
10

Pressure of gas is 13.6 cm of hg what does it means​

Physics
1 answer:
vlada-n [284]3 years ago
5 0

Explanation:

13 cmHg (centimeters of mercury) is the pressure at the bottom of a column of mercury 13 cm deep.  It is the equivalent of about 17.3 kPa or 2.5 psi.

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Why is honesty especially important in a scientist when the results of an experiment go against predictions❓❔
kramer
Because other scientists and science in general rely on their collegues' research which in turn allows development of our knowledge on the given subject. The more dont-to-earth reason may be safety. If someone performs an experiment without knowledge of its true results it might result in some danger to the safety of those perforning it without knowledge of all the risks.
8 0
3 years ago
How much mass should be attached to a vertical ideal spring having a spring constant (force constant)of 39.5 N/m so that it will
nordsb [41]

Answer:

m = 1 kg

Explanation:

Given that,

The force constant of the spring, k = 39.5 N/m

The frequency of oscillation, f = 1 Hz

The frequency of oscillation is given by the formula as formula as follows :

f=\dfrac{1}{2\pi}\sqrt{\dfrac{k}{m}} \\\\f^2=\dfrac{k}{4m\pi^2}\\\\m=\dfrac{k}{4\pi^2 f^2}\\\\m=\dfrac{39.5}{4\pi^2 \times (1)^2}\\\\m=1\ kg

So, the mass that is attached to the spring is 1 kg.

6 0
2 years ago
How does the current change if the resistance is doubled?
finlep [7]
The current will be divided by 2
7 0
3 years ago
Two factors which cause global climate change are listed below.
Vika [28.1K]
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The amount of heat received by the sun has increased because of the amount of CO2 which human expelled to the atmosphere.
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4 0
3 years ago
Read 2 more answers
a delivery truck travels 18 blocks north, 10 blocks east, and 16 blocks south. what is the distance traveled and displacement. ​
AleksAgata [21]

1) Distance: 44 blocks

2) Displacement: 10.2 blocks at 11.3^{\circ} north of east

Explanation:

1)

- Distance is a scalar quantity that gives a measure of the total length of the path travelled by an object, regardless of its direction

- Displacement is a vector quantity which connects the initial position to the final position of motion of the object. Being a vector, it has both magnitude and direction: the magnitude is the shortest distance between initial and final position, while the direction goes from the initial to the final position.

In this problem, the motion is:

18 blocks north

10 blocks east

16 blocks south

So, the distance is the sum of the distances covered in each part:

distance = 18 + 10 + 16 = 44 blocks

2)

The displacement can be calculated by evaluating the initial and the final position. Along the north-south direction, the displacement is

d_y = 18 (n) - 16 (s) = 2 blocks north

Along the east-west direction,

d_x=10 blocks east)

So, the magnitude of the displacement is given by Pythagorean's theorem

d=\sqrt{d_x^2+d_y^2}=\sqrt{2^2+10^2}=10.2 blocks

And the direction is given by

\theta=tan^{-1}(\frac{d_y}{d_x})=tan^{-1}(\frac{2}{10})=11.3^{\circ}

measured as north of east.

Learn more about distance and displacement:

brainly.com/question/3969582

#LearnwithBrainly

8 0
3 years ago
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