The atomic masses of the atoms in the repeat unit are simply added together to form the repeat unit's molar mass, or MR. Just the product nMR makes up the chain's molecular mass.
Other than monodisperse polymers, chains of various lengths typically create a molar mass dispersion. A repeat unit, also known as a repeating unit (or mer) in polymer chemistry, is a component of a polymer whose repetition would result in the completion of the polymer chain (aside from the end-groups) by connecting the repeat units consecutively along the chain, much like beads on a necklace. A mer is another name for a repetition unit (or mer unit). This is where the definition of the word "polymer," which is "many mers," comes from.
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how does end a of the rod react when the (re)charged ball approaches it after a great many previous contacts with end a?
The end A of the rod react when the (re)charged ball approaches it after a great many previous contacts with end A is strongly repelled (option 1)
When a charged body comes into contact with a neutral body, electrons flow from the charged body to the neutral body. This is referred to as the generation of static charges.
According to the given problem,
Assuming the conducting rod is not grounded, a negative charge accumulates on both ends of the rod. Charges, on the other hand, cannot stay at the ends and must be distributed throughout the length.
The charged ball will now be strongly repelled by the rod as it approaches it after many previous contacts with end A.
As a result, we can conclude that the rod's end A is strongly repelled away from the charged ball as it approaches it.
The question is incomplete, it should be:
How does end A of the rod react when the charged ball approaches it after a great many previous contacts with end A? Assume that the phrase "a great many" means that the total charge on the rod dominates any charge movement induced by the near presence of the charged ball.
It is strongly repelled.
It is strongly attracted.
It is weakly attracted.
It is weakly repelled.
It is neither attracted nor repelled.
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Select the correct answer. It is more fun to play when you have good sportsmanship OA B. True False
It is more fun to play when you have good sportsmanship is true.
What is Sportsmanship?Sportsmanship can be thought of as a persistent and largely constant trait or disposition that allows people to differ in how they are typically expected to respond in sporting situations.
Sportsmanship has been linked to interpersonal notions of treating others equally, retaining self-control when interacting with others, and respecting both authority figures and opponents. It mostly refers to virtues like fairness, self-control, courage, and perseverance.
The four components of sportsmanship—good form, the desire to triumph, equity, and fairness—are frequently displayed. For true sportsmanship to be demonstrated, a balance between all four components must be achieved.
Therefore, It is more fun to play when you have good sportsmanship is true.
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The kinetic energy of the dark Throne would be w=2.38, the speed of the dart would be 12 m/s. If the dart were thrown straight upwards, what maximum height would it reach?
Answer:
2.38×12 = 28.56
w×v = height
briefly, explain why worlds with a very low or very high surface gravity would pose a challenge for humans exploring such worlds.
It would be a challenge because Low or high gravity affects human physiology and physical capabilities, leading to muscle/bone loss in low gravity and injury in high gravity.
Gravity plays a significant role in human physiology and physical capabilities. In environments with low gravity, such as those in space, our bodies experience a weakening of muscles and bones due to a decrease in gravitational pull. On the other hand, in environments with high gravity, our bodies are subjected to more force, which can cause injury and impair our ability to move freely.
It is therefore essential to understand the implications of gravity on our bodies so that we can take the necessary precautions when engaging in activities that involve significant changes in gravitational forces.
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what is the channel capacity for a teleprinter channel with a 300 hz bandwidth and snr of 6 db?
A teleprinter channel with a 300 Hz bandwidth and an SNR of 6 dB has a channel capacity of 964.6 bps.
The channel capacity of a teleprinter channel is defined as the maximum amount of information that can be transmitted through the channel per unit time, in bits per second (bps). The channel capacity is determined by the channel's bandwidth and signal-to-noise ratio (SNR). The channel capacity of a teleprinter channel with a bandwidth of 300 Hz and an SNR of 6 dB can be calculated using the formula C = B log2(1 + S/N), where B is the bandwidth and S/N is the signal-to-noise ratio.
In this case, C = 300 log2(1 + 10^(6/10)) = 964.6 bps. This means that a teleprinter channel with a 300 Hz bandwidth and an SNR of 6 dB has a channel capacity of 964.6 bps. This channel capacity is sufficient for most teleprinter applications, as teleprinters typically have low data rates compared to other communication systems.
It is important to note that the channel capacity is a theoretical limit and assumes that the channel is used optimally. In practice, there may be factors such as errors and interference that reduce the actual data rate that can be achieved. Additionally, the channel capacity is dependent on the specific modulation and coding scheme used, and different schemes can result in different capacities for the same channel.
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a hurricane wind blows across a 5.90 mm ×× 13.2 mm flat roof at a speed of 110 km/hrkm/hr .
The pressure difference is 562.1 Pa.
The pressure difference can be calculated using the equation:
[tex]ΔP = 1/2 * ρ * v^2[/tex], where [tex]ρ[/tex] is the air density and [tex]v[/tex] is the wind speed.
Air density at sea level = 1.225 kg/m^3.
To convert the wind speed from km/hr to m/s, divide by 3.6.
The pressure difference can then be calculated as follows:
[tex]ΔP = 1/2 * 1.225 kg/m^3 * (110 km/hr / 3.6)^2[/tex]
[tex]ΔP = 1/2 * 1.225 kg/m^3 * (30.56 m/s)^2[/tex]
[tex]ΔP = 1/2 * 1.225 kg/m^3 * 935.24 m^2/s^2[/tex]
[tex]ΔP = 562.1 Pa[/tex]
So, the pressure difference is approximately 562.1 Pa.
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The given question is incorrect. The correct question is given as:
A hurricane wind blows across a 5.90 mm ×× 13.2 mm flat roof at a speed of 110 km/hr. What is the pressure difference?
When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, how many molecular orbitals are formed?
A 1
B 2
C 3
D 4
E 5
When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, The two molecular orbitals that form are known as s (sigma) and s* (sigma star) in Molecular Orbital Theory. The correct option is B.
Molecular orbitals are linear combinations of atomic orbitals that represent the electron distribution across two or more atoms.
The covalent bond refers to the mutual sharing of electrons between the two atoms in the molecule. The atomic orbitals overlap to form the molecular orbitals. The number of atomic orbitals and molecular orbitals formed will be the same. Hydrogen molecules are an example of molecular orbitals.
You can only make two molecular orbitals from two 1s atomic orbitals. This is known as the First Principle. The two molecular orbitals that form are known as s (sigma = bonding) and s* (sigma star = anti-bonding) in Molecular Orbital Theory.
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the imaginary plane in which all objects project to corresponding points in the left and right retina is called
The imaginary plane in which all objects project corresponding points in the left and right retina is called the Horopter.
The horopter is a concept in visual perception that refers to the plane that contains all points that produce the same retinal disparity (the difference in the position of an object as seen by the two eyes).
The horopter is used to explain why some objects appear to be in front of or behind the plane of the screen in stereo vision.
The horopter is the plane in which objects are seen as having the same depth by both eyes, which is why objects on or near the horopter appear to be in the same plane as the screen.
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x-rays of wavelength 0.0722 nm are reflected from a nacl crystal, and the first-order maximum occurs at an angle of 20.4 ◦ . what value does this give for the interplanar spacing of nacl?
Explanation:
The interplanar spacing can be calculated using the Bragg's law equation:
nλ = 2d * sinθ, where n is the order of reflection, λ is the wavelength of x-rays, d is the interplanar spacing, and θ is the angle of incidence.
Given n = 1, λ = 0.0722 nm, and θ = 20.4°, we can solve for d:
d = nλ / (2 * sinθ) = (1 * 0.0722 nm) / (2 * sin 20.4°) = 0.282 nm.
the electric field at a point in space is e⃗ e→e_vec =(=( 400 i^ i^ 200 j^)n/cj^)n/c.
The x component of an electric force is 6.41 × [tex]10^{-17}[/tex] N and the y component of an electric force is 3.20 x [tex]10^{-17}[/tex]N.
E=(400 )i+(200 )j is the electric field vector
q=1.602 × [tex]10^{-19}[/tex]C is the charge of a proton
The electric force is calculated using:
F = qE
and we substitute:
F =(1.602 × [tex]10^{-19}[/tex]C)× ((400)i+(200)j)
we distribute the charge to both components of the vector to obtain:
F= (6.41 × [tex]10^{-17}[/tex] N)i+ (3.20 x [tex]10^{-17}[/tex]N)j
(a) Vector parts are represented by unit vectors. The unit vector I in the "hat" convention stands in for a vector's x-component. In this instance, the x-component of our electric force vector is as follows:
F=6.41 x [tex]10^{-17}[/tex]N
(b) Similar to our earlier response, the unit vector typically denotes a vector's y-component. Therefore, the y-component of our electric force vector is:
F=3.20× [tex]10^{-17}[/tex]N
We observe that our vector components' directions, which are their magnitudes, are represented by the unit vectors (or the numbers aside from the hat unit vectors).
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an organ pipe open at both ends has two successive harmonics with frequencies of 210 hz and 240 hz. what is the length of the pipe? the speed of sound is 344 m/s in air. an organ pipe open at both ends has two successive harmonics with frequencies of 210 hz and 240 hz. what is the length of the pipe? the speed of sound is 344 m/s in air. 4.90 m 5.73 m 2.76 m 5.25 m 3.62 m
The frequencies of the harmonics are calculated using the equation [tex]f = \frac{nV}{2L}[/tex].
From calculations the length of the organ pipe is 5.73m.
Harmonics are the multiples of fundamental frequencies. The frequencies here are the frequencies of the wave. Here two successive frequencies are given. So we can calculate the length by using these frequencies.
First frequency is 210 Hz. It can be expressed in the equation as
n₁V/ 2L = f₁
n₂V/2L =f₂
Since they are successive, Let n₁= n, then n₂ will be (n+1).
f₁ = nV/2L
f₂ = (n+1)V/2L
Dividing f₁ by f₂
[tex]\frac{f_{1} }{f_{2} } = \frac{nV/2L)}{(n+1)V/2L}\\ \\\frac{210}{240} = \frac{n}{n+1}\\\\n=7[/tex]
Since n=7 and V= 344
f₁ = nV/2L
210 = 7× 344/ 2L
2L = 7× 344/210
L = (7×344)/(210×2)
L = 5.73m
So length of the organ pipe is 5.73 m
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A child's water pistol shoots a stream of water through a 1.0-mm-diameter nozzle at a speed of 4.3 m/s. Squeezing the trigger pressurizes the water reservoir inside the pistol. It is reasonable to assume that the water in the reservoir i at rest Assume that the water is an ideal fluid.what is the volume flow rate in ml/s as the trigger is being squeezed? express your answer in milliliters per second.
The calculated value is .0522 N (-x direction as likes repel) (-x direction as likes repel)
There should be void nearby; (6) the pressure must be high enough so that significant damage occurs, that is the pressure should be above 10 atmospheres. Recommendations on how to avoid this kind of water hammer in both the design and the operation of the reactor system are made.
Taking a look at our equations first:
F = kQ1Q2/r2
k = 9*109
We may combine the force vectors using the Principle of Superposition to determine the net force acting on Q1.
F1 = F1,2 + F1,3
Solving each force we encounter
F1,2 = 9.10*109 x (-4.12 x 10-6 C) x (3.74 x 10-6 C) / (.580m)
Given that opposites attract, 2 = -.412 N (+x direction)
F1,3 is equal to 9*109 x (-4.12 x 10-6 C) x (-1.14 x 10-6 C) / (.900m)
2 = .0522 N (-x direction as likes repel) (-x direction as likes repel)
F1 = -.412 N + .0522 N = -.360 N
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An object accelerates if its velocity changes, such as speeding up or slowing down.
What is the other way an object can accelerate (without changing speed)?
What in the a00 loration
Centripetal acceleration is the process of having an item accelerate while altering its direction of motion.
What is centripetal acceleration?The acceleration of a circularly moving item that is pointed in the direction of the circle's centre is known as centripetal acceleration.
When an object is travelling in a circle while being continuously drawn toward the centre, this is known as circular motion. Despite the fact that the object's speed may not vary, its velocity does. This kind of acceleration needs a net force, which is frequently supplied by the tension in a string or the gravitational pull of a planet.
A = v2/r, where r is the circle's radius and v is the object's velocity, can be used to compute centripetal acceleration. The magnitude of this acceleration is inversely proportional to the radius of the circle and is always in the direction of the centre of the circle.
In conclusion, an item accelerates if its velocity, either in speed or direction, changes. Centripetal acceleration is necessary for things travelling in circular motion because it causes the velocity to change direction without increasing or decreasing in speed.
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The weight of the block in the drawing is 81.9 N. The coefficient of static friction between the block and the vertical wall is 0.430.
(a) What minimum force vector F is required to prevent the block from sliding down the wall? (Hint: The static frictional force exerted on the block is directed upward, parallel to the wall.)
(b) What minimum force is required to start the block moving up the wall? (Hint: The static frictional force is now directed down the wall.)
(a) The minimum force vector F required to prevent the block from sliding down the wall is equal to the force of static friction, which is equal to the coefficient of static friction multiplied by the weight of the block. In this case, the minimum force vector F is:
F = μs * Fg = 0.430 * 81.9 N = 35.4 N
(b) The minimum force required to start the block moving up the wall is the force of kinetic friction which is typically less than the force of static friction. The force of kinetic friction is given by:
F = μk * Fg where μk is the coefficient of kinetic friction.
However, in this question, the coefficient of kinetic friction is not given. So, we can't calculate the minimum force required to start the block moving up the wall.
An atom travelling away from a light detector at 0.8c emits a photon of light of wavelength 600 nm. The wavelength received by the detector is
So the wavelength received by the detector is 375 nm.
How to calculate the wavelength?In this case, the atom is travelling at 0.8 times the speed of light away from the light detector (c). This means that the observed wavelength of light emitted by the atom will be longer than the wavelength of light emitted by the atom.
Where _observed is the observed wavelength, _emitted is the wavelength emitted by the object, c is the speed of light, v object is the velocity of the object relative to the observer, and v observer is the velocity of the observer relative to the object.
The effective wavelength is = [v -/+ vs]/f / = v/f -/+ vs/f
When the source travels toward the observer, use the first sign (-), and when it goes away, use the second sign (+).
The frequency discovered
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A bicyclist accelerates at 1 m/s2 during a 4.0 s interval. What is the change in the speed of the bicyclist and the bicycle?
The change in the speed of the bicyclist and the bicycle is 4 meters per second.
What is Speed?Speed is the distance covered by an object in a particular time period. Speed is different from velocity, as it is a scalar quantity due to no direction. Whereas, velocity is a vector quantity due to both direction and magnitude.
Acceleration = Rate of change in velocity
Acceleration = Change in velocity/ Time taken
a = (v-u)/t
a = 1m/s²
t = 4 seconds
(v-u) = ΔV = ?
a = ΔV/ t
1 = ΔV/ 4
ΔV = 1×4
ΔV = 4 meters per second.
The change in the speed is 4 meter per second.
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uranus was not considered a planet by ancient greeks because it is too faint to be seen without the aid of a telescope. group of answer choices true false
True. Uranus is too faint to be seen without the aid of a telescope, and was not considered a planet by the ancient Greeks.
What is telescope?A telescope is an instrument used to observe distant objects by collecting and magnifying the visible light they emit. Telescopes are used to observe a wide variety of celestial objects, including stars, galaxies, planets, and comets. Telescopes come in a variety of shapes and sizes, ranging from small handheld models to huge observatories. Telescopes are also used in astronomy and other scientific fields to study the universe, as well as in military and law enforcement applications to survey and observe terrestrial objects. Telescopes are typically built with one or more curved mirrors or lenses which collect and focus the incoming light, allowing for a magnified image to be viewed. Many modern telescopes are equipped with sophisticated technology, such as digital cameras, computer-controlled tracking systems, and spectrographs to allow for detailed analysis and observation of distant objects.
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A toy rocket has a mass 0f 350g at launch. The force it produces is 15N and it is fired at an angle of 65° to the horizontal. What is the initial acceleration of rocket as a vector?
Answer:
250 g
Explanation:
it has the weight of the angle
Answer:
break the launch vector into two components, vertical and horizontal
Force Net Vertical=-9.8*.350+15cos65 N
force net horizonal=15sin65
initial acceleration= force/mass= (-9.8+15/.350*cos65)j+(15/.350*sin65)i
using i,j vectors..
a person who weighs 70 kg bounces on a trampoline that has and attains 350 j of potential energy at their maximum height. how high will the person bounce?
Potential energy: According to the problem the person will reach a maximum height of 4.87 m.
What is Potential energy?Potential energy is the stored energy of an object due to its position relative to other objects. It is the energy an object has due to its position in a gravitational field, or due to its condition or arrangement.
The potential energy that is stored in the trampoline is equal to the work done by the person bouncing on it. Therefore, we can calculate the height that the person will reach by using the formula for work:
Work = Force x Distance
Since the mass of the person is known (70 kg), we can calculate the force applied by the person by rearranging the formula as follows:
Force = Work / Distance
Force = 350 J / Distance
Since the distance is the height of the person when they reach their maximum height, we can calculate it by rearranging the formula again:
Distance = Work / Force
Distance = 350 J / (70 kg x 9.81 m/s2)
Distance = 4.87 m
Therefore, the person will reach a maximum height of 4.87 m.
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What happens to the motion of particles when the frequency is increased
Answer:
Due to the increase in kinetic energy, the particles start vibrating more strongly with greater speed. The energy supplied by heat overcomes the intermolecular forces of attraction between the particles. As a result, the particles leave their mean position and break away from each other.
Explanation:
:)
a satellite is orbiting the earth a distance re above its surface. what is the acceleration due to gravity in this orbit? (re is the radius of the earth)
The acceleration due to gravity in this orbit is 9.81 m/s2.
What is gravity?Gravity is a natural force of attraction that exists between any two objects with mass. It is the force that keeps us grounded to the Earth and causes objects to fall to the ground when released. Gravity is strongest at the surface of the Earth, and its effects diminish with distance. In the universe, gravity is responsible for maintaining the orbits of planets and stars, and for the formation of galaxies.
The acceleration due to gravity (g) at a distance r from the centre of the Earth is given by:
g = GM/r2
Where G is the gravitational constant and M is the mass of the Earth.
Therefore, the acceleration due to gravity at a distance re above the Earth's surface is given by:
g = GM/re2
= (6.67 x 10-11 Nm2/kg2) x (5.98 x 1024 kg) / (6.37 x 106 m)2
= 9.81 m/s2.
Therefore, the acceleration due to gravity in this orbit is 9.81 m/s2.
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In order to convert temperature from Celsius to Fahrenheit, one can use the following equation F=1.8C+32, where C is the temperature in Celsius and F is the temperature in Fahrenheit. What is the temperature in Fahrenheit when C is 15 degrees?
The temperature is 57 degrees Fahrenheit while C is 15 degrees.
What does 32 F mean on the Fahrenheit scale?Water has a freezing point of 32° and a boiling point of 212° on the Fahrenheit temperature scale. The difference between the two is divided into 180 equal parts.
Is 37.0 degrees Celsius a fever?Your body temperature is usually around 37 °C. When your body temperature is 37.8°C or greater, you typically have a fever. You might feel hot, cold, or shaky. By taking your temperature using a thermometer, you can determine whether you have a fever.
How do you convert between Fahrenheit and Celsius?The conversion of a degree in Fahrenheit to a degree in Celsius is represented by the Fahrenheit to Celsius formula. Fahrenheit to Celsius conversion formula: °C = [(°F-32)×5]/9
Given:
C = 15 degree
We know that,
F = 1.8C+32
F = 1.8*15+ 32
F = 27 +32
F = 57 degrees Fahrenheit
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calculate the pressure inside a soap bubble with internal diameter d=15.9 mm and external diameter d=16 mm when the surface tension of the soap is σ=0.06 n/m
The pressure inside a soap bubble is 0.813 N/m^2, with internal diameter d=15.9 mm and external diameter d=16 mm, when the surface tension of the soap is σ=0.06 n/m.
The pressure inside a soap bubble can be calculated using the Laplace law, which states that the pressure difference between the inside and outside of a spherical bubble is proportional to the surface tension of the soap and the radius of the bubble.
The Laplace law can be expressed as:
= P
= 2σ / r
here P is pressure difference,
σ is surface tension of soap,
r is radius of the bubble.
To calculate the pressure inside the soap bubble, we first need to calculate the internal and external radii of the bubble:
=> Internal radius (ri)
= d / 2
= 15.9 mm / 2
= 7.95 mm
=> External radius (re)
= (d + 2t) / 2
= 16 mm / 2
= 8 mm
here t is thickness of soap film.
Next, Using Laplace's law, we determine the difference in pressure:
= P
= 2σ / r
= 2 x 0.06 N/m / (8 mm - 7.95 mm)
= 0.813 N/m^2
So, the pressure inside the soap bubble is 0.813 N/m^2.
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determine the weights of 1 kg, 1 slug, and 1 lbm on mars (the gravitational acceleration on mars is 38% of that on earth).
The weight of 1 kg on Mars would be 0.38 N, 1 slug would be 3.72 N, and 1 lbm would be 0.17 N.
The weight of an object is determined by its mass and the force of gravity acting upon it. On Earth, the acceleration due to gravity is 9.8 m/s^2. However, on Mars, the acceleration due to gravity is 38% of that on Earth, or 3.71 m/s^2.
To calculate the weight of an object, we multiply its mass by the acceleration due to gravity. So, the calculation would be:
For 1 kg on Mars:
1 kg * 3.71 m/s^2 = 3.71 N
For 1 slug on Mars:
1 slug * 3.71 m/s^2 = 14.59 N
For 1 lbm on Mars:
1 lbm * 3.71 m/s^2 = 0.82 N
Therefore, the weight of 1 kg on Mars is 3.71 N, 1 slug is 14.59 N, and 1 lbm is 0.82 N.
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which equation shows the correct algebraic representation of the conservation of total mechanical energy for this process?
The correct algebraic representation of the conservation of total mechanical energy is 1/2 Mv² = 1/2 kx² + W_friction.
Mechanical energy is the sum of potential energy and kinetic energy. Mathematically,
Em = Ek + Ep
Where:
Em = mechanical energy
Ek = kinetic energy
Ep = potential energy
In this problem, the initial mechanical energy is due to the initial speed of the box. Hence,
Em_i = 1/2 Mv²
Where:
M = mass of the box
v = initial speed of the box.
Since the surface is not frictionless, there is some loss in the kinetic energy due to friction. We can write the remaining energy as:
remaining energy = Ek - W_friction
= 1/2 Mv² - W_friction
As the box hits the spring, the box stops, and therefore its kinetic energy is zero. The remaining energy (1/2 Mv² - W_friction) is transformed as the potential energy of the spring 1/2 kx². Them we have:
1/2 Mv² - W_friction = 1/2 kx²
or
1/2 Mv² = 1/2 kx² + W_friction
Your question is incomplete. Most likely it was:
A box of mass M, sliding with an initial speed of v on a rough horizontal surface, runs into a fixed spring of elastic constant k, compressing it a distance x from its relaxed position before momentarily coming to rest. Which equation shows the correct algebraic representation of the conservation of total mechanical energy for this process? See the attached picture for the options.
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each of two very long, straight, parallel lines carries a positive charge of 40.00 ?c/m. the distance d between both lines is 4.70 m. what is the magnitude of the electric field at a point equidistant from the lines, with a distance 2d from both lines?
The magnitude of the electric field at a point equidistant from the two lines of charge, with a distance of 2d from both lines, is 5.89 x 10^5 N/C.
What is electric field?An electric field is an invisible force field that surrounds any electric charge. It exerts a force on other charges in the field, either pushing them away or pulling them closer. The strength of the field is determined by the magnitude of the charge; the greater the charge, the stronger the field.
The electric field at any point along the line of charge is given by the equation E= kQ/r^2, where k is the Coulomb's constant (8.99 x 10^9 Nm^2/C^2), Q is the charge, and r is the distance from the line of charge.
Applying this equation to the given situation, we can calculate the electric field as follows:
E = (8.99 x 10^9 Nm^2/C^2) x (40.00 x 10^-6 C/m) / (2 x 4.70 m)^2
E = 5.89 x 10^5 N/C
Thus, the magnitude of the electric field at a point equidistant from the two lines of charge, with a distance of 2d from both lines, is 5.89 x 10^5 N/C.
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Three equal positive charges are placed on the x-axis, one at the origin, one at x = 2 m, and the third at x = 4 m. Of the following points, which has the greatest magnitude electric field?a. x = 1 mb. x = 3 mc. x = 5 md. The electric field has the same magnitude at all three positions.
The electric field has the same magnitude at all three positions. On the x-axis, there are three equal positive charges: one at the origin, one at x=2m, and a third at x=4m.
On the x-axis, there are three equally sized positive charges: the first is at the origin, the second is at x = 2, and the third is at x = 4 m. a. x = 1 mb. x = 3 mc. x = 5 md. The vertices of an equilateral triangle have three positive charges of equal value, q. It is necessary to draw the resulting lines of force as in. Unlike charges attract one another while like charges repel one another. Both two positive and two negative charges repel one another as a result.
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can you daisy chain your outdoor blink cameras with 110 volts, so you don't have an outlet for each camera?
Battery powered cameras require a connection to a Sync Module and to Wi-Fi.
Define volt?
One Volt is defined as energy consumption of one joule per electric charge of one coulomb. 1V = 1J/C. One volt is equal to the current of 1 amp times the resistance of 1 ohm.In 1881, the International Electrical Congress, now the International Electrotechnical Commission (IEC), approved the volt as the unit for electromotive force.According to the International System of Units (SI), one volt is equal to the difference in electric potentials between two given points in a wire carrying an electric current of magnitude 1 ampere and dissipating one watt of power between those two points.Voltage, also called electromotive force, is simply the energy per unit charge. In other words, voltage is the difference in electric potential between two points. Current is just the rate of flow of electric charge.
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a seconds pendulum in chicago has a length of 0.9933 m . what is the acceleration due to gravity in chicago?
The acceleration due to gravity in Chicago is [tex]9.803 m/s^2[/tex].
Let us assume that the acceleration due to gravity in Chicago is [tex]g[/tex] [tex]m/s^2[/tex].
It is given that,
The length of the second pendulum is [tex]l=0.9933 m[/tex].
It is known that,
The time period of a second pendulum is [tex]T=2s[/tex].
The time period of a simple pendulum, [tex]T=2\pi\sqrt{\frac{l}{g}}[/tex].
[tex]\Rightarrow (2)=2\pi \sqrt{\frac{0.9933}{g}}[/tex]
[tex]\Rightarrow \frac{2}{2\pi}=\sqrt{\frac{0.9933}{g}}[/tex]
[tex]\Rightarrow \frac{0.9933}{g}=(\frac{1}{\pi})^2[/tex]
[tex]\Rightarrow g=0.9933\times(\pi)^2[/tex]
[tex]\Rightarrow g=9.803 m/s^2[/tex]
Hence, the acceleration due to gravity in Chicago is [tex]9.803 m/s^2[/tex].
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(a) what is the electric field 4.2 m from the center of the terminal of a van de graaff with a 8.20 mc charge, noting that the field is equivalent to that of a point charge at the center of the terminal?
The electric field 4.2 m from the center of the terminal of a van de Graaff with an 8.20 mc charge, noting that the field is equivalent to that of a point charge at the center of the terminal is 4.18×10⁶ N/C.
An electric field is set up when a specific point charge lies at a particular point in the field. The electric field is obtained by the Coulomb's equation. So as the distance increases, the value of the electric field decreases.
The distance from the center of the terminal of a Van de Graff is r=4.2m. The electric charge is q=(8.20 mC × 10⁻³/1mC) =8.20 ×10⁻³ C. The electric field is E=kq/r², where E is the electric field and k is Coulomb's constant, k=9×10⁹ N.m²/C². So, E=(9×10⁹×8.20×10⁻³)/(4.2)² = 4.18×10⁶ N/C.
So the electric field at a distance of 4.2m is 4.18×10⁶ N/C.
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