1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Artemon [7]
4 years ago
13

The atmospheric pressure is due to the

Physics
1 answer:
Rzqust [24]4 years ago
7 0

Answer:

b

Explanation:

air mass surrounding the earth

You might be interested in
When a glass rod is rubbed with silk, the silk becomes negatively charged. Which of the following explanations best describes th
just olya [345]

Answer: b. Electrons move from glass to silk

Explanation:

When the glass rod is rub over against the silk, the glass loses the electrons due to the physical contact with the silk and the friction so produced.  The surface of the glass becomes positively charged and the surface of the silk becomes negatively charged. As the surface of the glass loses electrons which are accepted by the silk surface.

6 0
3 years ago
Calculate the total energy transferred when 200 g of ice cubes at 0°C are changed to steam at 100°C.
uranmaximum [27]

Answer:

604000\ \text{J}

Explanation:

m = Mass of ice = 200 g

\Delta T = Temperature change of water = (100-0)^{\circ}\text{C}

c = Specific heat capacity of water = 4200 J/kg °C

L_f = Specific latent heat of fusion = 340 kJ/kg

L_v = Specific latent heat of vaporisation = 2260 kJ/kg

Heat required to convert ice to water = mL_f

Heat required to raise the temperature of water to boiling point = mc\Delta T

Heat required to convert water to steam = mL_v

Total heat required

q=mL_f+mc\Delta T+mL_v\\\Rightarrow q=m(L_f+c\Delta T+L_v)\\\Rightarrow q=0.2(340\times 10^3+4200(100-0)+2260\times 10^3)\\\Rightarrow q=604000\ \text{J}

Heat required to convert the given amount of ice to steam at the required temperature is 604000\ \text{J}.

7 0
4 years ago
Your friend's 10.8 g graduation tassel hangs on a string from his rearview mirror. When he accelerates from a stoplight, the tas
Nitella [24]

The tension in the string holding the tassel and the vertical will the tension in the string

  • T = 0.1953 N
  • Ф = 34.4 °

<h3>What is the tension in the string holding the tassel. ?</h3>

Generally, the equation for Tension is  mathematically given as

TCos\theta = mg

Therefore

TCos6.58^{o} = 19.8*10^{-3}*9.8

T = 0.1953 N

b).

Where

T* sin \theta = ma

0.1953*Sin6.58 \textdegree  = 19.8*10^{-3}*a

a = 1.13 m/s^2

In conclusion

T* sinФ = ma

2msinФ = ma

2sinФ = a

sin\theta = \frac{a}{2}

\theta = sin^{-1}\frac{a}{2} \\\\\theta= sin^{-1}\frac{1.13}{2}

Ф = 34.4 °

In conclusion, The tension in the string holding the tassel and the vertical will the tension in the string

T = 0.1953 N

Ф = 34.4 °

Read more about tension

brainly.com/question/15880959

#SPJ1

4 0
2 years ago
There is the more role of the moon than the sun to occur tides in the oceans,why?
Nana76 [90]

Answer:

The ocean tides on earth are caused by both the moon's gravity and the sun's gravity. ... Even though the sun is much more massive and therefore has stronger overall gravity than the moon, the moon is closer to the earth so that its gravitational gradient is stronger than that of the sun.

8 0
3 years ago
The length and width of a rectangular room are measured to be 3.92 ± 0.0035 m and 3.15 ± 0.0055 m. In this problem you can appro
Pavel [41]

Answer:

A)A=12.2480\ m^2

B)12.2480\pm 0.1029\ m^2

Explanation:

<u>Given:</u>

Length of the room l= 3.92 ± 0.0035

Width of the room w= 3.15 ± 0.0055

A) Let A be the area of the room

A=l\times w\\A=3.92\times3.15\\A=12.2480\ \rm m^2

B)We will calculate uncertainty in each dimension

%uncertainty in length=\dfrac{0.0035}{3.92}\times 100=0.0892\ %

%uncertainty in width =\dfrac{0.0055}{3.15}\times 100=0.0174%

The uncertainty in area will be sum of uncertainty in length and width

%uncertainty in Area=  %uncertainty in length + %uncertainty in width

%uncertainty in Area=0.0892\ % + 0.0174\ %

%uncertainty in Area=0.0106

Uncertainty in Area=0.0106\times 12.2480=0.1029\ \rm m^2

There Area is12.2480 ± 0.1029\ \rm m^2

7 0
3 years ago
Other questions:
  • What is the purpose of a lanyard attached to an ignition safety switch??
    8·2 answers
  • The 0.8−mg car travels over the hill having the shape of a parabola. when the car is at point a, it is traveling at 9 m/s and in
    9·1 answer
  • if the displacement of a car was 150 km [E] and the velocity was 15.0 km/h [E], what was the travel time?
    8·1 answer
  • You find it takes 200 N of horizontal force tomove an unloaded pickup truck along a level road at a speed of2.4 m/s. You then lo
    11·1 answer
  • Helppp pliss.............
    5·1 answer
  • Why the gaps left between succesive rails on a railway tracks​
    7·1 answer
  • I will mark brainliest!! The Moon travels around the Earth each month in an elliptical path, as opposed to a perfect circle.
    13·1 answer
  • How does the bending of light depend on the two media?
    14·1 answer
  • Two flat glass surfaces are separated by a 150-nm gap of air.
    11·1 answer
  • A laser source is replaced by a laser of the same color that is more powerful. How does the light of the second laser compare wi
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!