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
zheka24 [161]
3 years ago
15

6. The Earth’s electric field is directed vertically downward; at the ground level its strength is E = 130 N/C, and at an altitu

de of 100 m E = 70 N/C. Find the charge in a cube 100 m on edge located between the ground and a 100 m altitude.
Chemistry
1 answer:
Alexxx [7]3 years ago
8 0

Answer:

5.31x10⁻⁶ C

Explanation:

The cube is located 100 m altitude from the ground, so the superior face is at 100m and has E = 70 N/C, and the inferior face is at the ground with E = 130 N/C.

The electric field is perpendicular to the bottom and the top of the cube, so the total flux is the flux at the superior face plus the flux at the inferior face:

Фtotal = Ф100m + Фground

Where Ф = E*A*cos(α). α is the angle between the area vector and the field (180° at the topo and 0° at the bottom):

Фtotal = E100*A*cos(180°) + Eground*A*cos(0°)

Фtotal = 70A*(-1) + 130*A*1

Фtotal = 60A

By Gauss' Law, the flux is:

Фtotal = q/ε, where q is the charge, and ε is the permittivity constant in vacuum = 8.854x10⁻¹² C²/N.m²

A = 100mx100m = 10000 m²

q = 60*10000*8.854x10⁻¹²

q = 5.31x10⁻⁶ C

You might be interested in
What is the name of CF7
Wittaler [7]

Answer:

Formula mass in daltons of the chemical component.

4 0
3 years ago
Read 2 more answers
Which of the following is not equal to 325 cg?
Andrei [34K]
The answer is 3.25 x 10 -3 kg is not equal to 325 cg
4 0
3 years ago
Read 2 more answers
Rahul and Sonia were playing with blocks and each of them made a train out of them. Both of them thought of measuring the length
dalvyx [7]

Answer:

See explanation

Explanation:

(a) The handspan is the distance between the tip of the thumb and tip of the little finger when the hand is fully stretched.

b) It is impossible for them to obtain an accurate result by the use of a handspan because it doesn't use any standard unit for measurement. It is entirely subjective and highly prone to human errors.

c) Anupam  is quite intelligent and active

3 0
3 years ago
The graph above plots gravitational force versus distance for two asteroids of equal mass (10 billion kg). When the distance bet
natima [27]

Answer:ABOUT 74 N

Explanation: TOOK THE TEST ON STUDY ISLAND :)

7 0
3 years ago
Read 2 more answers
Which acid has the largest ka: hclo3(aq), hbro3(aq) or hio3(aq)?
ryzh [129]
Greater the Ka value greater is the acid strength. Among these three acids HClO3 is the strongest acid, with greatest Ka and lowest pKa value (-1), Then comes HBrO3, its the second most strongest acid among the three, its Pka value is 0.7, higher than HClO3 but smaller than HIO3 (i.e. 0.77) which the weakest acid among the three.

3 0
3 years ago
Other questions:
  • Calculate number of grams in 1.15*10^21 molecules of P2O5
    15·1 answer
  • What element has a mass number of 16 and 8 neutrons
    10·2 answers
  • What is the maximum mass of aluminum chloride that can be formed when reacting 18.0 g of aluminum with 23.0 g of chlorine?
    7·2 answers
  • Technetium has a half-life of six hours. If you obtain 100g of a pure technetium sample, after 18 hours how much of the pure sub
    14·1 answer
  • Match each chemical with the correct use.
    8·2 answers
  • The fact that a heat pump requires energy to move heat from a colder object (the outside of a house) to a hotter object (the ins
    12·1 answer
  • Given a mixture of sand and water, state one process that can be used to separate water from the sand
    6·1 answer
  • How many grams do 1.5 x 1026 atoms of magnesium weigh?
    15·1 answer
  • Help me pls I will mark you as brain
    12·2 answers
  • 12: from the following list, decide whether the following are Arrhenius bases or acids.•HCl•NaOh•HBr•H2SO4•NH4OH•H3PO4•HNO3•LiOH
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!