The distance between the two objects is 1.5 cm.
To calculate the distance between the two objects, we use the formula obtained from Columb's law
What is Columb's law?Columb's law states that the force of attraction or repulsion between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
Formula:
F = kqQ/r²............... Equation 1Where:
F = Force between the two objectsr = Distance between the objectsQ and q = charges on both objects respectively.k = Columb's constantMake r the subject of the equation
r = √(kqQ/F).............. Equation 2From the question,
Given:
F = 60 Nq = 1.2×10⁻⁶ CQ = 1.2×10⁻⁶ Ck = 8.99×10⁹Substitute these values into equation 2
r = √[(1.2×10⁻⁶×1.2×10⁻⁶×8.99×10⁹)/60]r = √[(12.9456×10⁻³)/60]r = √(2.16×10⁻⁴)r = 1.47×10⁻² mr = 1.47 cmr ≈ 1.5 cm.Hence, The distance between the two objects is 1.5 cm.
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How demands became the obstacles ?
The demands forces the human to go to different places in order to fulfill their requirements .So they have to shift their homes to different places .Pick all of the statements that are correct
Natural resource supplies depend solely on physical availability
Demand for natural resources have influenced human settlement patterns ✓
More the resources,more the fraction of the population living near that areaClean air, clean water, and food are examples of natural resources
we get air from the atmosphere, water from hydrosphere and food from the lithosphere and all of them are natural resourcesA 5 kg rock is lifted 3 m above the ground. What is the rock's GPE now?
A. 15 J
B. 15,000 J
C. 1,500J
D. 150 J
A circuit contains a 1. 5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current
whats carbond6y12 explain!!
Answer: More info please
Explanation:
an object moving at 10 km/h has a kinetic energy of 10 J. what is the kinetic energy of the same object if it is moving at 20 km/h
KE = 1/2 mv²
v = 10 km/h = 2.78 m/s
v = 20 km/h = 5.56 m/s
10 = 1/2 m . 2.78²
m = 2.59 kg
KE = 1/2 x 2.59 x 5.56²
KE = 40.03 J
_____the form of energy which enables us to see any object is.
Answer:
Light
Explanation:
Light is the form of energy which enables us to see any object.
State Coulomb’s Law equation and give the meaning of every variable and the units.
The Coulomb's law equation is F = Kq₁q₂/r².
What is Coulomb's law?This is the law that relates the product of two charges to the square of distance between the two charges.
Coulomb's law states that the force of attraction or repulsion is directly proportional to the product of the charges and inversely proportional to the square of distance between the charges.
Coulombs' law equationThe equation of Coulomb's law is given as;
F = Kq₁q₂/r²
where;
K is Coulomb's constant, Nm²/C²q₁ is the first charge, Cq₂ is the second charge, C)r is the distance between the charges, mThus, the Coulomb's law equation is F = Kq₁q₂/r².
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differentiate between loadstone and bar magnet
A jet is flying at a velocity of 30m/s. It speeds up to 150m/s in 40s.
Calculate its acceleration.
Answer:
acceleration= Final velocity - initial velocity/time taken
or u can put the formula by their symbols
a= V-u/t
a=150m/s - 30m/s= 120
120/40s= 3s
so the answer is 3s.
What is the acceleration of
a 6 kg object being pulled
with a force of 12 N?
Answer:
2 m/s^2
Explanation:
Use Newton's 2nd Law of motion:
F = ma
12N = (6kg)a
a = 12/6
a = 2 m/s^2
A common activity like cooking a meal can use many natural _________.
A common activity like cooking a meal can use many natural Ingredients
Ingredients
Ingredients are substances combined to make a particular mixture such as a meal. most of the ingredients used for the preparation of a meal are sourced naturally.
In cooking different recipes of a meal the use of specific ingredients for each recipe differentiates the recipes.
Therefore we can conclude that cooking a meal requires the use of natural ingredients.
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What factors do NOT affect friction between two objects? Explain how you know this.
The frictional force between two bodies depends mainly on three factors: (I) the adhesion between body surfaces
(ii) roughness of the surface
(iii) deformation of bodies.
<3
hello humans ~
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explain how eyes get used to darkness after some time?
It is all about the dilation of pupils. When darkness falls, your pupils enlarge, whereas in daylight, your pupils shrink.
I am joyous to assist you at any time.
Charge q1 = 7. 5 nc is located at the coordinate system origin, while charge q2 = 1. 5 nc is located at (a, 0), where a = 1. 1 m. The point p has coordinates (a, b), where b = 2. 6 m
The electrical field along the horizontal axis is 3.36N/C and the 8.11N/C along the vertical axis
Data;
q1 = 7.5nCq2 = 1.5nCa = 1.1mb = 2.6mElectrical Field ForceThe electrical field force is given as
[tex]E = \frac{kQ}{r^2}[/tex]
The distance apart will be
[tex]r = \sqrt{1.1^2 + 2.6^2} = 2.8m[/tex]
Let's find E1 and E2
E1 will be
[tex]E_1 = \frac{-9*10^9 * 7.5*10^-^9}{2.8^2} = -8.61N/C[/tex]
E2 will be
[tex]E_2 = \frac{-9*10^9*1.5*10^-^9}{2.8^2} = -1.72N/C[/tex]
Let's find the angle between the charges
[tex]tan\theta = \frac{2.6}{1.1} \\\theta = 67.04^0[/tex]
The value E12
[tex]E_1_2 = |E|cos\theta = 8.61(cos67.04) = 3.36N/C[/tex]
The value of E21 = 0
The value of electrical field along the horizontal axis
[tex]E_x = 3.36 N/c[/tex]
The value along the vertical axis
[tex]E_1_y = -|E_1|sin \theta = -7.93 N/C\\E_2_y = E_2 sin 90^0 = -1.72N/C\\E_y = \sqrt{7.93^2 + 1.72^2}= 8.11N/C[/tex]
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Answer:
The gases which are very good at absorbing long wave photons of infrared gas.
Explanation:
These absorption is called green house effectIt is the main reason behind global warmingAccording to our present theory of solar system formation, why were solid planetesimals able to grow larger in the outer solar system than in the inner solar system?.
Answer:
According to our present theory of solar system formation, why were solid planetesimals able to grow larger in the outer solar system than in the inner solar system? Because only metal and rock could condense in the inner solar system, while ice also condensed in the outer solar system.
Explanation:
describe ohm law with examples
Here is your Answer:-
Ohm's Law
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship: I=V/R, where I is the current through the conductor in units of amperes, V is the voltage measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.
Conventional Domestic Fans.
Electric Heaters. The electric heaters are the common appliances used in winters throughout the world.
Electric Kettles and Irons. The electric kettle and irons have a lot of resistors in them.
Design of Electric Devices.
Describe the key features of the national grid, explaining why electricity is transmitted in this way.
The National Grid network is made of high-voltage power lines, gas pipelines, interconnectors, and storage facilities that together enable the distribution of electricity. The grid ensures that all areas of Said country have power/gas/oil products. this also allows more efficient power generators like nuclear plants to contribute more to the power grid than just where they are located.
rearrange the equation d=vt-1/2at^2 to find v
Explanation:
This is the formula for the change in distance (δx) of an object moving with constant acceleration (a) and initial velocity (v), one of the standard Equations of motion. To solve for t first rearrange
12at2+vt−δx=0
then apply the formula for solving a Quadratic equation if our equation is At2+Bt+C=0 then the solution is
t=−B±B2−4AC√2A,
here A=12a, B=v, C=−δx so plugging these in the formula gives
t=−v±✓v2−4(12a)(−δx)√2(12a) (Apply quandriatic equation)
simplifying
t=−v±v2+2aδx√a.
Note how there are two possible solutions one corresponding to the + and one to the -. Sometimes one of these will give a negative time, so you may want to eliminate that. Indeed if δx>0, v>0 and a>0 we only want the positive solution. In other cases you may want to consider both solutions, for instance if we thow a ball up in the air the initial velocity is positive and the acceleration is negative, it will pass a fixed height above your head twice, once on the way up and once on the way down.
Vr1 = _______volts
O 30.
O 160.
O 24.
O 6.0
Answer:
Explanation:
Potential drop across R1, VR1
= Supply Voltage
= 24V
Well look at the diagram
Current passing refered to II is constantWe know
according to ohms law
[tex]\\ \rm\Rrightarrow \dfrac{V}{I}=R[/tex]
[tex]\\ \rm\Rrightarrow \dfrac{V}{R}=I[/tex]
As I is constantV remains constantOption C is correct
Different Betweens in Self Induced emf and Mutual Induced emf ~
Thank uh☃️
Answer:
brain cells that are in your brain
Explanation:
it has something to do with brain cells
What is the unit of measurement used for Electric Potential difference?
Answer:
e. V
Explanation:
Electric potential is the amount of work needed to move a unit charge from a reference point to a specific point against an electric field.
In the SI, the units are Volts denoted by the letter V, in honor of Alessandro Volta
Option E is the correct answer
a student pushes a shopping cart filled with groceries. the cart has a mass car of 12 kilograms (kg). The student pushes the cart with a force of 15 newtons (N). Assuming the ground is frictionless, how fast will the cart accelerate until the student stops applying force?
Answer:
the cart will have an acceleration of 1,25 m.s‐²
The magnitude of the electric field between two parallel charged plates is 200. An electron moves to the negative plate 5. 0 cm away. Two horizontal parallel plates have equally spaced vectors going from the top plate to the bottom plate labeled E and the plates are spaced a distance d apart. There is a negatively charged sphere is near the positively charged plate and a second is directly below and near the negatively charged plate. The two charged particles are connected by a dashed line vector point from the top to the bottom one. Find the electric potential difference and the work. Recall the charge of an electron is 1. 602 × 10–19 C. ΔV = V Round work to one decimal. W = × 10–18 J.
The potential difference between the two ends of the circuit is the electric potential difference. The electric potential difference and the work will be 10V and 1.6 x 10^-18 J respectively.
What is an electric field?An electric field is an electric property that is connected with any location in space where a charge exists in any form. The electric force per unit charge is another term for an electric field.
The given data in the problem is given by;
E is the electric field = (200 N/C)
d is the distance = 5.0 cm.=0.05 m
Q is the charge of electrons= 1.602 x 10^-19 C
The formula for electric potential is given by;
[tex]\rm V=Ed[/tex]
[tex]\rm V=Ed \\\\ \rm V=200 \times 0.05 \\\\ \rm V= 10 \frac{Nm}{C} = 10 \frac{J}{C} = 10 V.[/tex]
The work is defined as the product of the potential difference and charge of an electron.
[tex]\rm W= 10 \times 1.602 x 10^{-19} \\\\\ \rm W= 1.6 x 10^{-18 }J[/tex]
Hence the electric potential difference and the work will be 10V and 1.6 x 10^-18 J respectively.
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first part is 10 second part is 1.6
When floating a ping-pong ball with a hairdryer, which two forces are balanced?
Force pushing up:
Force pulling down:
A motor bike is sitting at the start line. It reaches a speed of 90m/s in 10 seconds. Calculate its acceleration.
Answer:
9m/s^2
Explanation:
a= dv/dt, 90m/s-0m/s/10s-0s=9m/s^2
7. A 500 g ball is about to roll off the edge of a 1. 5 m tall table. What is its current gravitational potential energy?
Answer: 7.35 Joules (7.35J)
Explanation:
Gravitational potential energy is defined to be the "stored" energy in the gravitational field. Since the force of gravity is conservative, the reference point for our zero potential does not matter. For simplicity, the zero reference point will be the floor which the table is sitting on. Gravitational potential energy is denoted as a capital 'U' and is defined to be:
[tex]U=mgh[/tex]
The 'm' is the mass, the 'g' is the acceleration due to the gravitational field, and the 'h' is the vertical height from the reference point. Plugging in the given values, you get:
[tex]U=(0.5kg)(9.8m/s^2)(1.5m)[/tex]
[tex]U=7.35J[/tex]
The SI units for mass is always the kilogram. So, you need to convert the grams into kilograms using the conversion factor of 1000g = 1kg.
What happens to the period of the motion when the spring constant increases? Does it increase, decrease, or stay the same?
Answer:
The answer would be Increase becaause the springs constantmotion is increasing.
Explanation:
someone please answer this, ill give you brainliest and your getting 100 points.
Answer:
B
Explanation:
Here .
B is denoted to asthenosphere
E is Mantal section which consists of semifluid magma or lava .The SI unit of pressure is _______.
ANSWER:
pascal (pa) or newton per square metre