HELP PLEASE! DUE TONIGHT!
What is the magnitude of the electric field strength at a point 2.2cm to the left of the middle charge? (let kc=8.987755e9 N*m^2/C^2
Answers
The magnitude of electric field strength at a point 2.2cm to the left is 2.694 x 10⁶ N/C.
The magnitude of the force on a -2.7 μC charge is 7.2898 N.
How to calculate magnitude?Calculate the electric field at the given point due to the two positive charges using the formula:
E = k × Q / r²
where k = Coulomb's constant,
Q = charge, and
r = distance from the charge to the point of interest.
For the first positive charge,
Q = 6.5 μC and
r = 4.3 cm + 2.2 cm = 6.5 cm = 0.065 m.
Plugging these values into the formula gives:
E1 = (8.98755 x 10⁹ N. m²/C²) × (6.5 x 10⁻⁶ C) / (0.065 m)² = 2.054 x 10⁵ N/C
For the second positive charge,
Q = 1.4 μC and
r = 4.6 cm - 2.2 cm = 2.4 cm = 0.024 m.
Plugging these values into the formula gives:
E2 = (8.98755 x 10⁹ N. m²/C²) × (1.4 x 10⁻⁶ C) / (0.024 m)² = 4.249 x 10⁶ N/C
Subtract its contribution from the total electric field.
For the negative charge,
Q = -2.7 μC and
r = 2.2 cm = 0.022 m.
Plugging these values into the formula gives:
E3 = (8.98755 x 10⁹ N. m²/C²) × (-2.7 x 10⁻⁶ C) / (0.022 m)² = -1.609 x 10⁶ N/C
The total electric field at the point of interest is then:
Etotal = E1 + E2 + E3 = 2.054 x 10⁵ N/C + 4.249 x 10⁶ N/C - 1.609 x 10⁶ N/C = 2.694 x 10⁶ N/C
Now, to calculate the force on a -2.7 μC charge placed at this point:
F = q × E
where q = charge and E = electric field.
Plugging in the values gives:
F = (-2.7 x 10⁻⁶ C) * (2.694 x 10⁶N/C) = -7.2898 N
The negative sign indicates that the force is directed in the opposite direction to the electric field, which makes sense since the charge is negative.
Therefore, the magnitude of the force is:
|F| = 7.2898 N
Answer for part 1: 2.694 x 10⁶ N/C
Answer for part 2: 7.2898 N
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Related Questions
9.00 V is applied to a wire with aresistance of 52.0 2. At what distancefrom the wire is the imagnetic field2.22 x 10-8 T?
Answers
Answer:
1.56 m
Explanation:
First, we need to find the current in the wire, so we will use the following equation:
\(V=IR\)Where V is the voltage, R is the resistance and I is the current. Replacing the values and solving for I, we get:
\(\begin{gathered} 9V=I(52\Omega) \\ \frac{9V}{52\Omega}=I \\ 0.17A=I \end{gathered}\)So, the current is 0.17 A.
Now, the magnetic field generated by a wire with current I at a distance r is equal to:
\(B=\frac{\mu I}{2\pi r}\)Where μ is 4π x 10^(-7). So, replacing the values and solving for r, we get:
\(\begin{gathered} (2.22\times10^{-8})=\frac{(4\pi\times10^{-7})(0.17)}{2\pi r} \\ (2.22\times10^{-8})r=\frac{(4\pi\times10^{-7})(0.17)}{2\pi r}\cdot r \\ (2.22\times10^{-8})r=\frac{4\pi\times10^{-7}(0.17)}{2\pi} \\ (2.22\times10^{-8})r=3.4\times10^{-8} \\ \frac{(2.22\times10^{-8})r}{2.22\times10^{-8}}=\frac{3.4\times10^{-8}}{2.22\times10^{-8}} \\ r=1.56\text{ m} \end{gathered}\)Therefore, the distance is 1.56 m
Please Help! It’s Greatly Appreciated! Will Mark as Brainliest!
Answers
Refer to the attached image.
3)
Which type of current in a circuit will produce a magnetic field?
a) direct current only
b) alternating current only
c) both direct and alternating current
d) Neither direct and alternating current
Answers
c) both direct and alternating current
Because Ampere's Law, a magnetic field is produced whenever an electrical charge is in motion. So, both kind of currents produces a magnetic field when electrical current is flowing through a wire.
Most energy obtained from water is converted from _____.
groundwater
tidal generators
waterfalls
potential energy behind dams
Answers
Answer: potential energy behind dams
Explanation:
groundwater, tidal generators, and waterfalls don't produce enough kinetic energy.
when a guitar string plays the note athe sting virbrates at 440 hz what is the period of the vibration
Answers
The period of the vibration of the guitar string playing the note A is 0.00227 seconds. The period is the reciprocal of the frequency.
Frequency and Period of A VibrationThe relationship between frequency and period of a vibration can be described as
T = 1/f
Where
T is the period.f is the frequency.The frequency of the guitar string playing the note A is 440 Hz, which means it completes 440 cycles of vibration in one second. Find the period of the vibration!
To calculate the period (T), use the formula:
T = 1/f
In this case, the frequency is 440 Hz.
T = 1/440 Hz
T ≈ 0.00227 seconds
Hence, the period of the vibration is approximately 0.00227 seconds.
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I forgot to post the pic
But please help
just need answers
Answers
Answer:
1.127,56,000m
2. 347,600,000
3. 384,000
4. 200000000
5. 16,000,000cm
6. 36,000,000cm
7. 125,000m long, 400m deep, 1,500m wide
8. 11.18km/sec
9. 5,400,000
10. 2g
11. 1,200 mg to 2700 mg
12. 158000 kg
13. 450000000 mg
14. 23,000g to 90,000g
15. 40,000 ML
16. 1,000 ML
17. 26,600 KL
18. 1,558,000 L
19. 60 ML
20. 0.947
Economics is all about decision making and allocation. Without ___ there would be no need for economics.
a Choices
b. Self-interest
c. Supply
d. Microeconomics
Answers
The process of selecting the optimal action to take from a multitude of possibilities can be characterized as decision making.
Meaning of making decisions:
The basic goal of managerial economics is decision-making. The process of choosing the best course of action from among multiple alternatives can be referred to as decision-making. Whenever there are numerous options, decision-making becomes a challenge.
Decision Making and Economics
Well, making decisions affects everyone's life; they are not just for executives or the corporate sector. Whether a person is employed or jobless, making decisions is important to everyone. Regardless of the work you are now doing, a choice needs to be made. You have several choices to make as a participant.
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What is the intensity level of a sound with intensity of 5.0 ´ 10-10 W/m2? (I0 = 10-12 W/m2)
Answers
The intensity level of a sound with an intensity of 5.0 × 10-10 W/m2 is 27 dB.
The intensity level of a sound can be calculated using the following formula:
Intensity level (dB) = 10 log (I/I0), where I is the intensity of the sound and I0 is the reference intensity, which is typically 10-12 W/m2.
Using this formula, we can calculate the intensity level of a sound with an intensity of 5.0 × 10-10 W/m2 as follows:
Intensity level (dB) = 10 log (5.0 × 10-10 / 10-12)
Intensity level (dB) = 10 log (5.0 × 102)
Intensity level (dB) = 10 × 2.7
Intensity level (dB) = 27 dB
Therefore, the intensity level of a sound with an intensity of 5.0 × 10-10 W/m2 is 27 dB. It's important to note that the intensity level is a measure of how loud a sound is perceived by the human ear, and is typically measured on a logarithmic scale. So, a sound with an intensity level of 27 dB is considered relatively quiet, while a sound with an intensity level of 120 dB (such as a jet engine or a rock concert) is considered very loud and can cause hearing damage if exposure is prolonged.
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A 30N force is applied to an object having a mass of 300 grams. Calculate the acceleration of the moving object
Answers
Answer:
9000 m/s
Explanation:
A=Fm
Acceleration = Force x Mass(Newtons)
how much must a woman weigh ( force) if the pressure she exerts while standing on one foot has an area of 0.6m squared exerts a pressure of 16 Pa
Answers
Answer:
W = 9.6 N
Explanation:
Given that,
Area on 1 foot, A = 0.6 m²
Pressure, P = 16 Pa
The pressure is given by force acting per unit area. So,
\(P=\dfrac{F}{A}\\\\P=\dfrac{W}{A}\\\\W=16\times 0.6\\\\W=9.6\ N\)
So, the required weight is 9.6 N.
12 Which choice describes a transformation of
kinetic energy into potential energy?
F A boy rolls a bowling ball towards a set
of pins.
G A firefighter uses a water hose to put out
a fire.
H A girl places a heavy backpack on the
floor.
I A teacher places a book high on a shelf.
Answers
The correct option to explain the conversion of kinetic energy to potential energy is Option 1: The teacher put a book at the top of the shelf.
Kinetic energy is the energy an object has due to its motion, and potential energy is the energy an object has due to its position or state. The transition from kinetic energy to potential energy occurs when an object's motion is converted into energy that affects its position or height.
In the scenario given, when the teacher puts a book high on the shelf, the book starts to have kinetic energy due to the teacher's action. However, when the teacher took the book and put it on the shelf, the movement of the book stopped.
This means that the kinetic energy of the book is reduced and converted into potential energy.
The higher a book is carried on a shelf, the greater its capacity. This is because potential energy is related to the height or height of an object relative to the reference point. By placing the book higher on the shelf, the teacher increases its potential energy and decreases its kinetic energy.
Therefore, option I specifies the conversion of kinetic energy to potential energy when the teacher puts the book at the top of the shelf.
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what is the ratio of electrostatic force and the gravitational force between a proton and an electron?
Answers
Answer:
Explanation:
electron attraction between electron and nucleus = centripetal force of the orbiting electron
In fact, Bohr model depicts the atom as a nucleus surrounded by electrons in circular orbit around it, similar to the planets around the Sun. The centripetal force that keeps the electrons in circular motion around the nucles is provided by the electrostatic force between the electrons and the nucleus.
Answer:
Fg = G M m / R^2 the gravitational force (M proton, m electron)
Fe = K e^2 / R^2 the electrical force where K = 9 *10E9 and e = charge
Fe / Fg = K e^2 / (G M m)
Fe / Fg = 9 * 10E9 * (1.6 * 10E-19)^2 / (6.67 * 10E-11 * 1.67 * 10E-27 * 9.11 * 10E-31
9 * 1.6^2 / (6.67 * 1.67 * 9.11) * 10^-29 / 10^-69
= 2.27 * 10E39 for the ratio of the two forces
if the sum of all the forces acting on a moving object is zero, the object will:
Answers
Answer:
continue moving with constant velocity
Explanation:
A 7.6 μC charge and a -4.7 μC charge are inside an uncharged sphere.What is the electric flux through the sphere?
Answers
The electric flux through the sphere is 6.63×10⁴ N·m²/C. The formula for electric flux through a surface is given by;ϕ=E×Acosϴwhere;ϕ= electric fluxE= electric field intensityA= area of the surfaceϴ= angle between the electric field vector and the normal vector to the surface .
The electric field intensity, E, at any point inside the sphere can be calculated using the formula between the charge and the object The electric field intensity at any point inside the sphere is the vector sum of the electric field intensities at that point due to the two charges.The distance between the two charges is not provided, so we will assume that they are at equal distances from the center of the sphere.
Let r be the distance between each charge and the center of the sphere.The electric field intensity at any point inside the sphere due to the 7.6 μC charge is given by;E₁= kq₁/r²= 9×10⁹ × 7.6×10⁻⁶ / r²The electric field intensity at any point inside the sphere due to the -4.7 μC charge is given by The electric field intensity at any point inside the sphere due to both charges is given by The electric flux through the sphere is given by;ϕ=E×AcosϴSince the sphere is uncharged, the net electric flux through the sphere is zero The electric flux through the sphere is 6.63×10⁴ N·m²/C.
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Which is the equivalent of 2000 mm?
a. 200 m b. 2 m c. 0.002 m d. 0.02 m
Answers
2000 mm is equivalent to 2 m. This can be derived from the fact that 1 m = 1000 mm. Thus, 2000 mm would be equal to 2 m since it is twice the length of 1000 mm. This conversion is important in various fields such as construction, engineering, and science where precision is necessary.
It is crucial to be able to convert between different units of measurement in order to make accurate calculations and measurements.The millimeter is a unit of length that is often used to measure small distances such as the thickness of a sheet of paper or the size of a small component. It is part of the metric system, which is a system of units used across the world that is based on multiples of 10.
This system makes it easy to convert between different units since it is based on a consistent set of rules.For example, to convert 2000 mm to meters, we can simply divide by 1000 since there are 1000 millimeters in a meter. This gives us 2 meters, which is the equivalent length in meters of 2000 millimeters.
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why will a magnet attract an ordinary nail or paper clip, but not a wooden pencil?
Answers
A magnet will attract an ordinary nail or paper clip because they are made of ferromagnetic materials, which are materials that can be magnetized and are strongly attracted to magnets. When a magnet is brought near a ferromagnetic material, it creates a magnetic field within the material, causing the material to become magnetized and creating an attractive force between the two.
On the other hand, a wooden pencil is not a ferromagnetic material and is not attracted to magnets. Wood is composed mainly of non-magnetic materials such as cellulose, hemicellulose, and lignin, which are not affected by magnetic fields. Therefore, the magnet will not create a magnetic field within the pencil, and there will be no attractive force between the two.
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7. You slide a 0.12 kg coffee mug 0.15 m across a table. The force you
exert is horizontal and of magnitude 0.10 N. The coefficient of kinetic
friction between the mug and the table is 0.05. How much work is done
on the mug?
Answers
The net work done on the coffee mug is 0.00618 J.
The given parameters;
mass of the coffee mug, m = 0.12 kgdistance traveled, d = 0.15 mhorizontal force, F = 0.1 Ncoefficient of friction, μ = 0.05The net work done on the mug is calculated as follows;
\(W = (F- F_f)d\\\\W = (F \ - \mu F_n)d\\\\W = (F - \mu mg)d\\\\W = (0.1 \ - \ 0.05 \times 0.12 \times 9.8)\times 0.15\\\\W = 0.00618 \ J\)
Thus, the net work done on the coffee mug is 0.00618 J.
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carl walks a distance of 100 meters at a speed of 4 m/s. how much time does it take? ( please show step-by-step explanation )
Answers
Answer:
25s
Explanation:
To find the amount of seconds it takes, you divide 100 (the meters) by 4 (the meters per second) the meters then cancel out, and you are left with 25 s
electromagnetic radiation with a wavelength of 5.7x10^-12 m is incident on stationary electron radiation that has a wavelnegth of 6.57x10^-12 m is detected at a scattering angle of
Answers
The scattering angle is approximately 0.014 degrees.To determine the scattering angle, we can use the formula for the scattering of electromagnetic radiation by electrons:
λ' - λ = (h / (m_e * c)) * (1 - cosθ)
Where:
λ' is the wavelength of the scattered radiation
λ is the wavelength of the incident radiation
h is Planck's constant (approximately 6.626 × 10⁻³⁴ J·s)
m_e is the mass of an electron (approximately 9.109 × 10⁻³¹ kg)
c is the speed of light (approximately 3.00 × 10⁸ m/s)
θ is the scattering angle
Given:
λ' = 6.57 × 10⁻¹² m
λ = 5.7 × 10⁻¹² m
We can rearrange the equation to solve for θ:
cosθ = 1 - ((λ' - λ) * (m_e * c)) / h
Substituting the given values:
cosθ = 1 - ((6.57 × 10⁻¹² - 5.7 × 10⁻¹²) * (9.109 × 10⁻³¹ * 3.00 × 10⁸)) / (6.626 × 10⁻³⁴)
Calculating the right side of the equation:
cosθ ≈ 0.9997
To find the scattering angle θ, we can take the inverse cosine (arccos) of both sides:
θ ≈ arccos(0.9997)
Using a calculator, the approximate value of the scattering angle is:
θ ≈ 0.014 degrees
Therefore, the scattering angle is approximately 0.014 degrees.
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Full Question ;
Electromagnetic resonance with a wavelength of 5.7X10^-12m is incident on stationary electrons. Radiation that has a wavelength of 6.57X10^-12m s detected at a scattering angle of:
A satellite's speed is 3,684 m/s. After 3 minute(s), it is 9,567 m/s. What is the satellite's
acceleration in m/s2?
Round your answer tot he nearest tenth.
Answers
Explanation:
acceleration=change in velocity /time in seconds
=(9567-3684)/(3 × 60)
= 5883/180
= 32.7m/s^2
is a light sensitive screen
Answers
Answer:
The retina is the light sensitive focusing screen. Inside, there's two types of fluid, one watery behind the lens, and further back, a thicker one that helps the eyeball hold its shape.
Answer:
The retina is the light sensitive focusing screen.
hope this helps <3
centrifugal force is a force that acts perpendicular to the direction of motion of an object and keeps the object moving in a circle
Answers
Answer:
Centrifugal force is the effect that tends to move an object away from the center of a circle it is rotating about (a consequence of inertia)
Help please!!!! What is the difference between the type of smog experiences by cities in the eastern United States and that found in Southern California?
Answers
Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.
What is Smog?Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.
Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.
The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.
Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.
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How does land use change as the human population increases?
O A. More land becomes available for habitats.
出
FREE
O B. Urban land becomes cropland.
C. Grasslands are used for cropland.
D. Developed land is converted to wetlands.
19
Answers
Answer:
C.
Explanation:
grassland are used for cropland
In an ecosystem, as the human population increases grasslands are used for cropland.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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Integrated Science- 8th grade science
Please Help ASAP!
Its almost the end of semester And I need to fix my grade for science so PLEASE help!
its almost report cards time!
Answers
Answer:
I do believe it is A.
Explanation:
I hope this helps :)
Answer:I believe it is A
Explanation: B just doesn't seem like something an 8th grader would be learning about, and I'm not sure about the other ones.
Choose ALL that apply
Voltage
a)pushes free protons around a circuit
b)is measured in volts
c)causes current
d)pushes free electrons around a circuit
Answers
A monkey is chained to a stake in the ground. The stake is 3.00 m from a vertical pole, and the chain is 3.40 m long. How high can the monkey climb up the pole
Answers
From the calculation and based on the Pythagoras theorem, the monkey will climb 4.5 m.
What is the Pythagoras theorem?The Pythagoras theorem is based on the sides of the right angled triangle. It states that the square of the longest side is equal to the square of the other two sides.
Thus;
c= √3^2 + 3.4^2
c = 4.5 m
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A force of 100N stretches an elastic string to a total length of 20cm. if an additional force of 100N stretches the spring 5 cm further, find the natural length of the spring if the elastic limit is not exceeded. Pls help ASAP
Answers
Answer:
8cm
Explanation:
The general formula to find this is F/X where in this case the f is the total of the two forces (100+100) and x is the sum of the length ( 20+5) which together comes 200&25respectively then divide 200 with 25 which comes 8cm.
If the coefficient of sliding friction between a 25 kg crate and the floor is 0.45, how much force is required to move the crate at a constant velocity across the floor?
Answers
At constant velocity, the crate would be in equilibrium, so that Newton's second law tells us
p + (-f ) = 0
where p and f denote the magnitudes of the added pushing force and friction force, respectively.
The friction force is proportional to the normal force by a factor of µ, the coefficient of friction. There's no vertical movement going on, so Newton's second law says
n + (-w) = 0
where n and w are the magnitude of the normal force and the weight of the crate, respectively.
Compute n :
n = w = (25 kg) (9.80 m/s²) = 245 N
Use this and µ = 0.45 to compute f :
f = µ n = 0.45 (245 N) = 110.25 N
Solve for p :
p + (-110.25 N) = 0
p = 110.25 N ≈ 110 N
The force i.e required to move the crate at a constant velocity across the floor is 110 N.
At the same velocity, the crate should be in equilibrium, so as per Newton's second law, the following formula should be used:
p + (-f ) = 0
p means the magnitudes of the added pushing force
f means the friction force
Calculation of the force:
n = w = (25 kg) (9.80 m/s²) = 245 N
Now
force should be
= µ n
= 0.45 (245 N)
= 110.25 N
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After a comet's closest approach to the Sun, its tail points ______.A) ahead of its direction of motion.B) behind its direction of motion.C) out of the plane of its orbit around the Sun.D) in all directions at once.E) nowhere.
Answers
A comet's tail points after its closest approach to the Sun:
When a comet approaches the Sun, the heat causes some of its frozen gases and ices to vaporize, creating a cloud of gas and dust around the nucleus of the comet.
The solar wind, which is a stream of charged particles constantly flowing out from the Sun, interacts with the gas and dust in the comet's atmosphere and pushes it away from the Sun.
The direction of the solar wind is generally outward from the Sun, so the gas and dust in the comet's tail is pushed in the opposite direction, away from the Sun.
The direction of the tail, therefore, is always away from the Sun, regardless of the position or motion of the comet.
Therefore, the correct answer is not among the options provided, but if we assume that the question is asking about the direction of the tail relative to the comet's direction of motion, the answer would be B) behind its direction of motion.
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