The resistance between the two sides of an outlet should be infinite. The two sides of the outlet are not connected to one another in any fashion as they are two sides of a circuit. The diagram below shows how this works. In an AC circuit, as shown below, the black wire provides AC power, the white is common, and the green is ground. Back in your breaker box, the common wires all go to one buss bar that is to earth ground and the ground wires go to earth ground as well by a separate path making sure that the residual voltage on the common doesn't cross over to the ground wire of another circuit. In the right hand diagram, they show how to connect wires for a series (daisy chain) to another outlet.
So my question is why are you trying to measure resistance here? Normally we would measure voltage. Are you trying to diagnose a circuit problem? In a 110vac system you should have 110vac from black to white and black to green and none from white to green (ideally if nothing is plugged into any outlets). With the breaker off, you should be able to measure the resistance between the two posts on the black side, and that should be 0ohms as they are the same point.
Current = (voltage) / (resistance)
Current = (240 V) / (12 ohms)
Current = 20 Amperes
A brick lands 10.1 m from the base of a building. If it was given an initial velocity of 8.6 m/s [61º above the horizontal], how tall is the building?
First, we have to establish the reference system. Let's assume that the building is on the negative y-axis and that the brick was thrown at the origin (see figure attached).
According to this, the initial velocity [tex]V_{o}[/tex] has two components, because the brick was thrown at an angle [tex]\alpha=61\º[/tex]:
[tex]V_{ox}=V_{o}cos\alpha[/tex] (1)
[tex]V_{ox}=8.6\frac{m}{s}cos(61\º)=4.169\frac{m}{s}[/tex] (2)
[tex]V_{oy}=V_{o}sin\alpha[/tex] (3)
[tex]V_{oy}=8.6\frac{m}{s}sin(61\º)=7.521\frac{m}{s}[/tex] (4)
As this is a projectile motion, we have two principal equations related:
In the x-axis:[tex]X=V_{ox}.t[/tex] (5)
Where:
[tex]X=10.1m[/tex] is the distance where the brick landed
[tex]t[/tex] is the time in seconds
If we already know [tex]X [/tex] and [tex]V_{ox}[/tex], we have to find the time (we will need it for the following equation):
[tex]t= \frac{X}{ V_{ox}}[/tex] (6)
[tex]t=2.42s[/tex] (7)
In the y-axis:[tex]-y=V_{oy}.t+\frac{1}{2}g.t^{2}[/tex] (8)
Where:
[tex]y[/tex] is the height of the building (in this case it has a negative sign because of the reference system we chose)
[tex]g=-9.8\frac{m}{s^{2}}[/tex] is the acceleration due gravity
Substituting the known values, including the time we found on equation (7) in equation (8), we will find the height of the building:
[tex]-y=(7.521\frac{m}{s})(2.42s)+\frac{1}{2}(-9.8\frac{m}{s^{2}}).(2.42s)^{2}[/tex] (9)
[tex]-y=-10.52m[/tex] (10)
Multiplying by -1 each side of the equation:
[tex]y=10.52m[/tex] >>>>This is the height of the building
True or false olives and olive oil are staples foods in the Mediterranean diet
➷ This is a true statement. The Mediterranean diet often replaces things such as butter with olive oil.
✽➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
↬ ʜᴀɴɴᴀʜ ♡
True. Olives and olive oil are staples foods in the Mediterranean diet. I Mediterranean and i can guarantee you it 100%.
What happens to the charge lost by an object?
They become charged particles called ions.
Doctors can release medical information without a signed medical release for if the information is regarding organ or tissue donation. True or false
Answer:False
Explanation:
False
why generally metals are good conductor and non metals are bad conductor of electricity
Metals - The close packing of the metal ions in the lattice and the delocalised electrons ensure it can carry kinetic energy through the lattice.
Non - metals have fewer free electrons and electrons are held tightly, meaning they're not allowed to move freely.
Final answer:
Metals are good electrical conductors due to their free electrons that allow for easy flow of charge, while non-metals are poor conductors as their electrons are more tightly bound. This electron structure difference makes metals suitable for electrical wiring and non-metals for insulation.
Explanation:
Metals are generally good conductors of electricity because they have free electrons that can move easily between atoms, providing a path for electrical charge to flow. This is why metals like copper and gold are commonly used in electrical conducting wires. On the other hand, non-metals are typically poor conductors of electricity, as their electrons are more tightly bound to their atoms and do not move freely. Materials like plastic, wood, and glass are examples of non-conductors or insulators. Therefore, the fundamental distinction between metals and non-metals in terms of conductivity is based on how their electrons are structured and interact.
Properties of Metals and Nonmetals
Metals have a shiny lustre, are malleable and ductile, making them ideal for making jewellery and cooking utensils.
Non-metals, such as sulfur and oxygen, are neither malleable nor ductile, and they usually do not conduct heat and electricity well.
Moving beyond electrical conductivity, materials can also be classified by magnetism, thermal conductivity, and other properties, emphasizing the versatility and range of uses for different elements based on their conducting abilities.
Help with this physics question pls!
The answer would be:
X convex mirror
Y concave mirror
Here's more about it:
Convex mirrors are used in side mirrors in cars because it has a wider field of view than others. This is because convex mirrors bend the light it reflects. The more it bends the light. The further the object is from the mirror, the image that will be produced will be smaller. That's why the side mirrors usually say that objects are closer than they appear.
A concave lens on the other hand, reflect light inwards, away from the light source. That's why they are used in telescopes, ,because they are used to collect light. The images that concave mirrors produces are enlarged.
Which of the following is an example of a speed? O A. -5 m/s2 west O B. 2m/s C. 2 m/s east O D. 3 m/s south
B is a speed.
A is an acceleration.
C and D are velocities.
The example of speed, with the unit as m/s (meter per second) in the following options is, option B. The option B has speed of 2 meter per second.
What is speed?Speed of an body is the distance traveled by it with respect to time. Speed of a object is the ratio of total distance traveled by the object to the time taken by it. It can be given as,
[tex]s=\dfrac{x}{t}[/tex]
Here, (x) is the distance traveled by a body and (t) is the time taken by it.
As the distance is measured in the meters and time is measured in the second. Thus the speed of an object is measured in meter per second (m/s).
When the distance travelled by an object with respect to time is represented with its direction, then it is called the velocity of the object in that direction.
The rate of change of velocity is called the acceleration. It is represented in the meter per squared second (m/s²).
In the given option,
The unit of option A is m/s². Thus it show, the acceleration. Option B has the units as m/s. Thus option B is an example of speed.Option C and D is has the unit m/s with direction, thus these options represents the velocity of the body.The example of speed, with the unit as m/s (meter per second) in the following options is, option B. The option B has speed of 2 meter per second.
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In a circuit what do lightbulbs and a toaster represent
Answer:
RESISTANCE
Explanation:
Answer:
Resistance
Explanation:
In a circuit, voltage source (cell or battery), key (for closing and opening circuit), resistance and a conducting wire are main components. Ohm's law states that current flowing in the circuit is proportional to the potential difference across the two ends.
V = I R
Where R is the resistance. Current also depends on the resistance. Greater resistance means lesser current would flow.
A light bulb and toaster represent resistance. These devices are based on Joule's Heating. When current passes through a resistance, it heats up and energy is lost as heat in case of toaster and as heat and light in case of light bulbs.
All the elements of a family in the periodic table have what feature in common?
They all have the same number of electrons in the electron cloud.
A projectile is shot from the edge of a cliff 125 m above ground level with an initial speed of 65.0 m/s at an angle of 37º above the horizontal. Determine the the magnitude and the direction of the velocity at the maximum height.
Answer:
51.9 m/s, horizontal
Explanation:
The horizontal and vertical components of the initial velocity of the projectile are given by:
[tex]v_x = v cos \theta=(65.0 m/s)(cos 37^{\circ})=51.9 m/s\\v_y = v sin \theta=(65.0 m/s)(sin 37^{\circ})=39.1 m/s[/tex]
In a projectile motion, the horizontal component of the velocity does not change (because there are no forces acting in the horizontal direction), while the vertical velocity changes according to:
[tex]v_y(t)=v_{0y}-gt[/tex]
where g=9.8 m/s^2 is the acceleration due to gravity. However, at the point of maximum height, the vertical velocity is zero (because it is the point at which the projectile starts falling down), so the magnitude of the resultant velocity will simply be equal to the horizontal component:
v = 51.9 m/s
and the direction will be horizontal.
The magnitude of the velocity at the maximum height is 52.0 m/s and the direction is horizontal.
Explanation:To determine the magnitude and direction of the velocity at the maximum height of a projectile, we need to analyze its motion. At the maximum height, the vertical component of the velocity becomes zero, while the horizontal component remains constant. Since the initial velocity is given as 65.0 m/s at an angle of 37º above the horizontal, we can use trigonometry to determine the horizontal and vertical components of the velocity.
The horizontal component of the initial velocity can be calculated as: Vx = initial velocity * cos(angle) = 65.0 m/s * cos(37º) = 52.0 m/s
At the maximum height, the vertical component of the velocity is zero. We can calculate the vertical component of the initial velocity as: Vy = initial velocity * sin(angle) = 65.0 m/s * sin(37º) = 39.0 m/s
Therefore, at the maximum height, the magnitude of the velocity is 52.0 m/s and the direction is horizontal or along the x-axis.
This chemical equation represents a ______________ reaction.
Answer: single replacement
Explanation: THIS IS THE RIGHT ANSWER I DID IT ON USA TEST PREP
This question pertains to a chemical reaction, represented by a chemical equation. These reactions are divided into categories such as precipitation, acid-base, and oxidation-reduction based on their behavioural patterns and can be presented through balanced chemical equations.
Explanation:The question refers to a type of chemical reaction. In chemistry, reactions are categorized based on patterns of behavior. Three main categories of reactions include: precipitation, acid-base, and oxidation-reduction (redox). These reactions can be symbolized by chemical equations, using formulas of substances that change (reactants) and are generated by the change (products). Each substance is separated by an arrow and preceded by integer coefficients to indicate their relative numbers. When the coefficients result in equal numbers of atoms for each element in the reactants and products, the equation is balanced.
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Which has a greater momentum? A 1200kg car traveling at 30m/s or a 2000kg truck traveling at 20m/s
the formula for momentum is velocity times mass
car :
1200 x 30 = 36000
truck:
2000 x 20 = 40000
Ans : truck has a greater momentum
What is the relationship between the buildup of electons and the sudden flow of electrons from one charged object to another?
Static electricity
hope this helps :)
the answer to this question is static electricity
What crop is least likely to do well when the temperatures are very hot?
a. sweet corn
b. spinach
c. tomatoes
d. okra
PLEASE HURRY
a. Sweet corn and possibly d. okra.
Spinach is the crop least likely to do well in very hot temperatures due to its preference for cooler temperatures and increased likelihood of bolt when exposed to high heat.
Explanation:The crop that is least likely to do well when the temperatures are very hot is spinach.
Spinach is a cool-season vegetable that prefers temperatures between 35 and 75 degrees Fahrenheit. When exposed to high temperatures, spinach is more prone to bolting, which means it quickly produces flowers and seeds instead of growing leaves. This affects the flavor and texture of the spinach, making it less desirable.
Sweet corn, tomatoes, and okra, on the other hand, are warm-season crops that are better adapted to hot temperatures and can tolerate higher heat without significant negative effects.
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which term describes the number of thoughs that pass a point in a given amount of time
The term that describes the number of thoughs that pass a point in a given amount of time is FREQUENCY.
In wave theory, frequency refers to the number of wave that pass through a fixed point in a given amount of time. Frequency is usually measure in Hertz. The mathematical formula for finding frequency is:
F = Velocity of wave / wavelength of wave.
Boltzmann’s constant is 1.38066 × 10−23 J/K, and the universal gas constant is 8.31451 J/K · mol.
If 2.4 mol of a gas is confined to a 4.3 L vessel at a pressure of 11 atm, what is the average kinetic energy of a gas molecule? Answer in units of J.
Answer:
[tex]4.95\cdot 10^{-21} J[/tex]
Explanation:
First of all, let's convert everything into SI units:
n = 2.4 mol (number of gas moles)
[tex]p=11 atm = 1.11\cdot 10^6 Pa[/tex] (gas pressure)
[tex]V=4.3 L=4.3\cdot 10^{-3} m^3[/tex] (gas volume)
R = 8.31451 J/K · mol (gas constant)
The ideal gas equation states that
[tex]pV=nRT[/tex]
Solving for T, we find the gas temperature
[tex]T=\frac{pV}{nR}=\frac{(1.11\cdot 10^6)(4.3\cdot 10^{-3})}{(2.4)(8.31451)}=239.2 K[/tex]
And now we can find the average kinetic energy of the gas:
[tex]E_K = \frac{3}{2}kT[/tex]
where
k = 1.38066 × 10−23 J/K is the Boltzmann's constant
Substituting,
[tex]E_K = \frac{3}{2}(1.38066\cdot 10^{-23} J/K)(239.2 K)=4.95\cdot 10^{-21} J[/tex]
The average kinetic energy of the gas molecule is 4.97 × 10⁻²¹ J
Calculating the average kinetic energy of a gas moleculeFrom the question, we are to calculate the average kinetic energy of the gas molecule.
The average kinetic energy of a gas molecule can be calculated from the formula,
[tex]KE_{avg}=\frac{3}{2}k_{b}T[/tex]
Where [tex]k_{b}[/tex] is the Boltzmann's constant
and T is the temperature
Now, we will determine the temperature of the gas
From the given information
R = 8.31451 J/K.mol
n = 2.4 moles
V = 4.3 L
P = 11 atm = 1114.58 KPa
From the ideal gas equation
PV=nRT
Then, we can write that
[tex]T = \frac{PV}{nR}[/tex]
Putting the parameters into the equation, we get
[tex]T = \frac{1114.58 \times 4.3}{2.4 \times 8.31451}[/tex]
T = 240.1772
T ≅ 240.2 K
Now, for the average kinetic energy of the gas molecule
[tex]KE_{avg}=\frac{3}{2}k_{b}T[/tex]
From the given information
[tex]k_{b} = 1.38066 \times 10^{-23}[/tex]
∴ [tex]KE_{avg}=\frac{3}{2} \times 1.38066 \times 10^{-23} \times 240.2[/tex]
[tex]KE_{avg}= 4.97 \times 10^{-21} \ J[/tex]
Hence, the average kinetic energy of the gas molecule is 4.97 × 10⁻²¹ J
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Two forces of 10 N and 30 N are applied to a 10 kg box. Find (1) the box’s acceleration when both forces point due east and (2) the box’s acceleration when 10 N force points due east and 30 N force points due west.
4 m/s²
Explanation;When both forces point due east then;
the resultant force will be; 10 + 30 = 40 N due east
But; From second Newton's law of motion;
F = ma
Thus;
a = F/m ; F= 40 N and mass = 10 kg
= 40/ 10
= 4 m/s² to wards east
2. Answer;1 m/s²
Explanation;when 10 N force points due east and 30 N force points due west then;
the resultant force will be; 30 N - 10 N = 10 N due west
But; From second Newton's law of motion;
F = ma
Thus;
a = F/m
= 10 /10
= 1 m/s² , towards the west direction
Explanation:
Given that,
First force = 10 N
Second force = 30 N
Mass of box = 10 kg
(1). When both forces point due east
Then the net force will be
[tex]F_{net}=F_{1}+F_{2}[/tex]
[tex]F_{net}=10+30[/tex]
[tex]F=40 N[/tex]
We need to calculate the acceleration
Using newton's second law
[tex]F= ma[/tex]
put the value into the formula
[tex]40=10\times a[/tex]
[tex]a=\dfrac{40}{10}[/tex]
[tex]a=4\ m/s^2[/tex]
The box accelerate towards east.
(2). When 10 N force points due east and 30 N force points due west.
Then the net force will be
[tex]F_{net}=F_{2}-f_{1}[/tex]
[tex]F_{net}=30-10=20\ N[/tex]
We need to calculate the acceleration
Using newton's second law
[tex]F= ma[/tex]
[tex]20=10\times a[/tex]
[tex]a=\dfrac{20}{10}[/tex]
[tex]a=2\ m/s^2[/tex]
The box accelerate towards west.
Hence, This is the required solution.
How do informal and formal learning differ? One is more structured than the other. One requires less effort. One has less significance than the other. One is the best way to learn.
Informal and formal learning both require effort and are significance. Neither is better than the other. So the answer is "One is more structured than the other."
which statement about waves is false? a. waves transfer matter b. waves can change direction c. waves can interact with each other d. waves can transfer energy to matter
A.
Waves can transfer energy but they can’t transfer matter
Tue statement that is false about waves is that waves can transfer energy to matter. That is option D.
What is a wave?A wave is defined as a disturbance in a medium that carries energy without a net movement of particles.
The main properties of a wave include the following:
amplitude, frequency,period, wavelength, speed, and phase.The above properties possessed by waves makes it possible for it to be able to transfer an object, change its direction and interact with each other but not to transfer energy to matter.
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Which vertebrae are normally fused together to form a solid mass of bone? A. Sacral B. Thoracic C. Coccygeal D. Cervical
A. Sacral is the answer.
Sacral is the vertebrae are normally fused together to form a solid mass of bone.
What is meant by vertebrae ?Vertebrae exist the 33 individual, interlocking bones that form the spinal column. Each vertebra has three primary functional components: the vertebral body for load-bearing, the vertebral arch to rescue the spinal cord, and transverse processes for ligament attachment.
The sacral region (sacrum) is at the bottom of the spine and lies between the fifth segment of the lumbar spine (L5) and the coccyx (tailbone). The sacrum is a triangular-shaped bone and consists of five segments (S1-S5) that are fused together.Sacral is the vertebrae are normally fused together to form a solid mass of bone.
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how is sound detected by the brain
begin with vibrations of the eardrum. Sound waves cause the eardrum to vibrate. Cells in the cochlea detect the vibrations and send a message to the brain.
Answer:
Sound must have a means by which it can be transported, for example air. That is why there is no sound in space.
The way our brain perceives sound is through the ears. The tympanum that the human being has is connected to three bones and when the air vibrates, the tympanum also vibrates, causing these vibrations to pass through those bones towards the inner part of the ears and from there to our brain.
That is the way the brain perceives sound.
Which statement is true about the law of conservation of energy for an object released from a certain height above the ground
The question is really specific enough, but I will take a guess. If nothing else changes (like the mass or the gravitational constant) then the Potential Energy will increase with an increase in height. Ep will decrease with a decrease in height.
If you are talking about Ke, then the height does not matter unless the object is moving up. Then it slows down. When that happens the Ke decreases because the formula for Ke = 1/2 m v^2. If v becomes less then Ke becomes less.
I suppose you could say if the object is going down and the distance is decreasing then the speed will increase. It's an inverse relationship.
I think you are best talking about Pe.
Two common terms for a decrease in velocity are
When a mass on a spring is at maximum displacement, what quantity is at a minimum?
A) acceleration
B) velocity
C) net force
D) amplitude
B) Velocity
The spring's displacement determines the amplitude. Maximum displacement therefore means maximum amplitude.
Answer:
When a mass on a spring is at maximum displacement, velocity is at a minimum.
(b on edge)
Help 10 points!
Digesting a banana before running a race is an example of converting
nuclear energy into mechanical energy.
nuclear energy into mechanical energy as well as heat.
chemical energy into mechanical energy.
chemical energy into mechanical energy as well as heat.
chemical energy into mechanical energy as well as heat.
Answer:
Explanation:
what type of meter is connected in parallel in a circuit and why
Potential difference is measured using a device called a voltmeter . Just like ammeters, some types have a pointer on a dial, but most have a digital display. However, unlike an ammeter, you must connect the voltmeter in parallel to measure the potential difference across a component in a circuit.
HOPE IT HELPS
It is just simply called a Voltmeter, and it reads potential differences.
PLEASE HELP ASAP!!
Dan wants to lift his car using a moveable pulley system like the one shown in the picture.
Using a moveable pulley system will decrease the force needed to lift the car by increasing the
A. Distance over which the force is applied.
B. Strength contained in Dan’s arms.
C. Total mass of Dan’s arms.
D. Total mass of the car.
Answer:
A. Distance over which the force is applied
Explanation:
As we know that in pulley system the mass of the car is balanced by the tension in the string
so here we will have
[tex]T = r \times F[/tex]
so here in order to decrease the force needed to lift the car we have to increase Distance over which the force is applied
So here if we increase the distance over which force is applied then it will reduce the effort applied by us in this pulley system as the torque will be more if the distance is more.
Sometimes when we refer to carbon dioxide we write it as CO2 what is CO2
C stands for carbon. The O stands for oxygen. CO2 is one carbon atom and two oxygen atoms
Which of the following is/are true regarding magnetic fields?
I. Magnetic field lines separate magnetic poles.
II. Magnetic field lines are spaced farther apart at the magnetic poles.
III. Magnetic fields are strongest at the magnetic poles.
A. II only B. I, II, and III
C. I only
D. III only
Here is your answer
D. III only
REASON:
1) The degree of curveness at the poles is maximum.
2) The density of field lines at and near poles is maximum.
Thus, magnetic field strength is maximum at the magnetic poles.
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Ashlee pours some quantity of orange juice in a glass. She accidentally breaks the glass and juice spills all over the floor. Which characteristic of the juice will change?
A. mass
B. State
C. Shape
D. Volume
Only the shape of the juice will change (C), because liquids take the shape of any container you pour them into.
Pouring the juice from the bottle into the glass doesn't change its mass, stat, or volume. So why should pouring it from the glass onto the floor change any of those things ?
When Ashlee spills the orange juice on the floor, the characteristic that changes is the volume of the juice.
The characteristic of the juice that will change when it spills all over the floor is its volume. When the glass breaks, causing the juice to spill, the volume of the juice will no longer be contained within the glass.