2. What is the charge, expressed in micro coulombs on two equally and similarly charges spheres placed in air with their centres 30 cm apart repelling each other with a force of 120 mgm.

Answers

Answer 1

Answer:

q = 0.1086 micro Coulombs

Explanation:

By Coulombs law, we have;

[tex]F =k \times \dfrac{ q_1 \times q_2}{r^2}[/tex]

Where;

F = The electric force = 120 mgm

q₁ and q₂ = Charge

r = The separating distance = 30 cm = 0.3 m

k = 8.9876×10⁹ kg·m³/(s²·C²)

Where, q₁ and q₂, we have;

[tex]F =k \times \dfrac{ q^2}{r^2}[/tex]

Whereby the force is the force of 120 milligram mass, we have;

0.00012 × 9.81 = 000011772 N

[tex]q = \sqrt{ \dfrac{ F\times r^2}{k}}[/tex]

Substituting the values, we have;

[tex]q = \sqrt{ \dfrac{ 000011772 \times (0.3)^2}{8.9876 \times 10^9}} = 1.086 \times 10 ^{-7} \ Coulombs[/tex]

q = 0.1086 micro Coulombs.


Related Questions

A ____ is marked by two sets of double yellow lines, with each set having a broken line on the inside, and a solid line on the outside. white arrows appear in this lane as well.

Answers

Answer:

  center left-turn lane

Explanation:

A center left turn lane will be marked as described. The arrows, if present, generally indicate that left turns are permitted from the lane with these markings.

__

If the double yellow lines are solid, they are considered to be a "barrier" and are not to be crossed.

Answer:

 center left-turn lane

Explanation:

Prescription eye protection suitable for an electrician should always include a. a safety strap b. soft nose guards c. side shields d. tinted lenses

Answers

Answer:

The correct option is;

Side shields

Explanation:

Electricians working at a construction site are exposed to arc flashes and sparks which can enter into the eyes causing painful sensation as such a prescription eye protection suitable for an electrician according to OSHA regulations the employer should ensure that the electrician makes use of eye protection that has side protection in situations that include hazards from flying objects.

You should continuously work to enhance your skills and knowledge .

Answers

Answer:

Improve Your Writing

You may need to improve your ability to express yourself in writing.

To some degree, most organisations rely on the accurate transfer of information and that calls for the accurate use of language. When speaking, most people make multiple errors of grammar and vocabulary, and nobody seems to mind. But when you are doing business at work, then the business agreement is usually in the form of a written document; and that document has to be worded properly.

How would you rate your ability to express yourself properly in writing? Are you a good writer or do you lack knowledge of grammar, punctuation, logic and rhetoric?

If you are not as good at writing as you need to be, then study grammar, study punctuation, logic and rhetoric.

Start by buying a copy of a book called 'Rex Barks' by Phyllis Davenport.

This book is the gateway to grammar - and Phyllis is phenomenal.

Explanation:

If sail boats A and B are approaching each other with the wind on different sides, why is vessel A considered the give-way vessel (vessel that must take early and substantial action to avoid a collision)?

Answers

Answer:

The reason is because when the wind approaches each sailboat from a different side, the sailboat that the wind approaches from the port side, which is the left side is the give-way vessel.

Whereby the wind approaches the vessel A from the port (left) side then vessel A is considered the give-way vessel

The give-way vessel is the vessel that will have to take expeditious steps to create  access for the other vessels by either changing course, stopping, or moving with reduced speed

Explanation:

Question 6: Which of the following is NOT true if you are changing into a
turning lane?
You should activate your signals 100 feet beforehand
You should activate your signals when you get into the turn lane
You should activate your signals before you get into the turn lane
You should use your hands to signal if your lights do not work

Answers

Answer:

You should activate your signals 100 feet before you turn, becuase of that you should not wait until you are turning to turn on your signals. If you do not have working lights use your hands. So the answer that is inccorect is B.

You should activate your signals when you get into the turn lane is NOT true

Because you are supposed to single beforhand not while you're in the lane.

Im taking my drivers ed too. :)

Which of the following is the last step in creating a budget?
A. Identify income
B. Identify variable expenses
C. Identify fixed expenses
D. Determine savings or debt

Answers

Answer:

D. Determine saving or debt

Explanation:

Which type of engineering design uses an already existing design?
A. top-down design
B. spiral design
C. bottom-up design
D.
incremental design​

Answers

Answer:

The correct option is;

C. Bottom-up design

Explanation:

The bottom-up design is meant for system redesign or re-engineering of an existing design involving component upgrading or legacy systems replacement

The bottom-up design approach is also meant for applications where there is a new interface requirement for the original system in order to determine the functionality of the newly combined systems and also where a novel component is incorporated into the existing design.

The bottom-up approach starts with the analysis of the interoperability of the components to the modules and eventually the analysis of the system requirements.

What is kinetic energy?

Answers

Answer:

kinetic energy means energy which a body possesses by virtue of being in motion

Answer:

Kinetic Energy is a type of energy which a body possesses by virtue of being in motion.

OR

It's the energy of mass in motion.

Hope it helps!!Please mark me as the brainliest!!!

Thanks!!!!

what is your favorite generation of the mustang?

Answers

Answer:

6TH AKA THE 2015-PRESENT

Explanation:

Answer:

I like them all except '74ish all the way up to '93.

You are driving a vehicle that has an automatic transmission. When you park on a hill, you
should
A: Set the parking brake first, before you shift the transmission into Park.
B: Shift the transmission into Park, and leave the parking brake off.
C: Set the parking brake, and shift the transmission into Neutral.

Answers

Answer:

The answer is A. Set the parking brake first, before you shift the transmission into Park.

An automatic gearbox is a multi-speed transmission system. The correct option is A.

What is the automatic transmission?

An automatic gearbox is a multi-speed transmission system that is used in internal combustion engine-powered motor vehicles that do not require any driver input to change forward gears. Thus, making the process of shifting gears automated.

The correct way to park an automatic transmission vehicle is to set the parking brake first before you shift the transmission into Park. Therefore, the correct option is A.

Learn more about Automatic Transmission:

https://brainly.com/question/14093047

#SPJ2

what kind of line is used to indicate the supporting beam

Answers

Answer:horizontal

Explanation: because it is supporting it

Built-up roofing, also called BUR, is the most common roofing material used on low-slope roofs. It is composed of alternating layers of reinforcing fabric and bitumen (asphalt) and is finished with a top layer of aggregate, such as stone or gravel.

how many types of engineering specialist are there?

Answers

There are now six major branches of engineering: Mechanical, Chemical, Civil, Electrical, Management, and Geotechnical, and literally hundreds of different subcategories of engineering under each branch.

There are about 40 types of engineering specialists

Steam enters an adiabatic turbine at 8 MPa and 500 C with a mass flow rate of 3 kg/s andleaves at 30 kPa.The isentropic efficiency of the turbine is 0.90. Neglecting the kinetic energy change of the steam, determine (a) the tem-perature at the turbine exit and (b) the power output of theturbine

Answers

Answer:

(a) The exit temperature = 69.1°C

(b)  The power output = 8.3 MW

Explanation:

(a) The enthalpy of steam at 8 MPa and 500°C is given (from online sources) as h₁ = 3399 kJ/kg

The exit temperature = The saturation temperature at 30 kPa = T₄ = 69.096 + 273.15 = 342.246 K

The exit temperature = 69.1°C

(b) The mass flow rate = 3 kg/s

The isentropic efficiency = 0.9 = (h₁ - h₂)/(h₁ - h₂[tex]_s[/tex])

s₁ = 6.727 kJ/kgK

h₂[tex]_s[/tex] = 289.229+ 2335.32* (6.8235 - 6.727 )/6.8235 = 322.26 kJ/kg

Therefore, h₂ = h₁ - (h₁ - h₂[tex]_s[/tex])*0.9

h₂ = 3399  - (3399  - 322.26 )*0.9 = 629.934 kJ/kg

The power output = [tex]\dot m[/tex](h₁ - h₂) = 3 *(3399 - 629.934) = 8307.2 kJ/s =

8.3 MW.

Other Questions
Read Eye on Fiscal Stimulus. How big was the fiscal stimulus package of 2008-2009, how many jobs was it expected to create, and how large was the multiplier implied by that expectation? Did the stimulus work? All the following statements concerning requirements to reinstate a lapsed life insurance policy are correct EXCEPT: Group of answer choices The lapse must have resulted from other than the surrender of the policy for its cash value. There is no time limit on when the policy may be reinstated. Evidence of insurability is required. All overdue premiums must be paid along with interest from the premium due dates. Protestant values such as asceticism and entrepreneurship as a result of the belief that success on earth could lead to salvation, and a fervent individualism due to the belief that only individuals could be saved lead, in the right conditions, to the rise of capitalism. Who made this argument An intergalactic rock star bangs his drum every 1.30 s. A person on earth measures that the time between beats is 2.50 s. How fast is the rock star moving relative to the earth Through Vincent van Goghs use of varying brushstrokes in the above painting, he exemplifies what technique of texture?a.reliefc.impastob.tactilityd.tone Is the square root of 65 a rational number what is equivlent to 12x+(7)214x(2) factorize 12p2q -9q2 an electromagnetic wave propagates in a vacuum in the x-direction. In what direction does the electric field oscilate What x value solves the equation? 3x 5 = 1 x = Covert the verbal expression into an algebraic expression.The product of 23 and a number x If there are a 1000 ml per 1 L and a 1000g per kilograma. How many ml are there in 5.0 L?b. How many kg are there in 230g? The pH of an acid solution is 5.82. Calculate the Ka for the monoprotic acid. The initial acid concentration is 0.010 M. Gamal is buying ham and turkey to make sandwiches for a party. At most, he can spend $50, and he must buy more than 8 pounds of meat to make enough sandwiches. The ham costs $6 per pound, and the turkey costs $7 per pound. He writes the system of inequalities shown to model h, the number of pounds of ham, and t, the number of pounds of turkey, he can buy.Inequality 1: h + t > 8 Inequality 2: 6h + 7t 50Which inequality did Gamal write incorrectly, and how can it be corrected?Inequality 1 is incorrect; it should be h + t 8.Inequality 1 is incorrect; it should be h + t > 50.Inequality 2 is incorrect; it should be 6h + 7t 8.Inequality 2 is incorrect; it should be 6h + 7t 50. Find four consecutive integers such that twice the 3rd number decreased by the second numberis 8 As cities grew, local bosses gained more and more clout. What does clout most likely mean here? PLEASE HELP!!!!!!!!!!!! WILL MARK BRAINLIEST Many cruise ships use advanced wastewater treatment technologies to treat sewage before they discharge it into the sea. Is the use of non-GMO bacteria to clean this water, as opposed to using chemical additives like chlorine, an example of biotechnology? Why or why not? This is an example of biotechnology because it seeks to solve a societal problem using biological entities. This is an example of biotechnology because metabolic activity of any organism is considered biotechnology. This is not an example of biotechnology because it isn't new, people have been using bacteria to treat wastewater for years. This is not an example of biotechnology because the bacteria are not genetically modified. Please SolveF/Z=T for Z please help with this Translate this into an equation 4 times a number divided by eight is three