Answe
a) Q = 0.820 10⁻⁹ C , b) Q = -3.52 10⁻⁹ C
Explanation:
The electric field is given by the formula
E = k q / r²
where E is a vector quantity, so it must be added as a vector
E_total = E₁ + E₂
let's look for the two electric fields
E₁ = k q₁ / r₁²
E₁ = 9 10⁹ 5.4 10⁻⁹ / 1.25²
E₁ = 31.10 N / C
E2 = k Q / r₂²
E2 = 9 10⁹ Q / 0.625²
E2 = 23.04 10⁹ Q N / C (1)
now we can solve the two cases presented
a) The total field is
E_total = 50.0 N / C towards + x
since the test charge is positive the electric field E1 points to the right in the direction of the + x axis, so the equation is
E_total = E1 + E₂
E₂ = E_toal - E₁
E₂ = 50.0 -31.10
E2 = 18.9 N /C
With the value of the electric field we can calculate the charge (Q) using equation 1
E₂ = 23.04 10⁹ Q
Q = E₂ / 23.04 10⁹
Q = 18.9 / 23.04 10⁹
Q = 0.820 10⁻⁹ C
the charge on Q is positive
b) E_total = -50.0 N / C
E_total = E₁ + E₂
E₂ = E_total - E₁
E2 = -50.0 - 31.10
E2 = -81.10 N /C
we calculate the charge
Q = E2 / 23.04 10⁹
Q = -81.1 / 23.04 10⁹
Q = -3.52 10⁻⁹ C
for this case the charge is negative
The final step of the decision-making model is: A-describe the situation B-weigh the pros and cons C-take action D-review your decision
Answer: D
Explanation: review your steps
Answer:
its d
Explanation:
A rectangular building lot has a width of 52.5 ft and a length of 136 ft. Determine the area of this lot in square meters.
Answer: A = l x w = 16.006 m x 41.344 m = 661.75 m²
Explanation:
Conversion first to meters and then the question is easy
How many ft in a meter? 1ft = .304 m
52.5 ft = 52.5 ft x .304m/ft = 16.006m
136 ft = 136 ft x .304 m/ft = 41.344m
What is the equation to find the area of a rectangular lot?
A = l x w = 16.006 m x 41.344 m = 661.75 m²
Metal sphere A has a charge of −????. An identical metal sphere B has a charge of +2????. The magnitude of the electric force on sphere B due to sphere A is F. The magnitude of the electric force on A due to B must be:______.
Answer:
Force on Sphere A due to B = F
Explanation:
The electrostatic force between the two charges is given by the Coulomb's Law, by the following formula:
F₁₂ = kq₁q₂/r²
where,
F₁₂ = Force on charge 1 due to charge 2
k = Coulomb's Constant
q₁ = magnitude of charge 1
q₂ = magnitude of charge 2
r = distance between both the charges
Similarly, the force on charge 2 due to charge 1 is given by the following formula:
F₂₁ = kq₁q₂/r²
It is clear from the formula that the force of both the charges on each other due to the other charge are same. Therefore, in our case:
Force on Sphere A due to B = Force on Sphere B due to A
Force on Sphere A due to B = F
true or false: the height from which cliff divers jump affects the velocity at which they will fall. velocity is speed in a certain direction.
Answer:
False
Explanation:
Because that is not true
Cool the matter back down to a solid state. How does its shape compare to its original shape?Why? *
Answer:
i am just answering what this guy said this answer isnt mine ok -v-/ Both soaps and emulsifiers contain only one nonpolar tail group Both soaps and emulsifiers consist of fatty acid chains and a polar head group Both soaps and emulsifiers work in the same manner
Soaps contain two polar tail groups, but emulsifiers have only one polar tail group ,Soaps contain only one nonpolar tail group, but emulsifiers have two nonpolar tail group
Every factor that is used in search engine ranking can be controlled by the site
owner.
True or False ?
Answer:
the answer is false
Explanation:
i just took the test
False every factor that is used in search engine ranking cannot be controlled by the site owner.
The ranking of a particular website is controlled is not controlled by the website owner instead it depends upon various factors that indicate towards user's experience. Factors like accessibility for search engines, content quality, keyword use, user intent, links and click through rate are the chief contributing factors that are responsible for promoting high rank of the website in the search engine.Learn more about search engine:
https://brainly.com/question/21403015
Usually you walk straight home from school. But today you take
a detour to buy some candy on the way home. Which will
change, the distance of our walk home, the displacement of
your walk home, or both?
Answer: the distance of our walk home.
Explanation:
In Physics when we speak of distance we refer to the space traveled that is always measured on the trajectory, while displacement refers to the space from an initial position to a final position regardless of the path. When the path is a straight line, the space traveled is equal to the module of the displacement.
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