polar liquid is most likely true about the unknown liquid.
What exactly are polar liquids?However, in polar liquids, the uneven charge distribution in the liquid's molecules means that the attractive and repulsive forces do not balance out, and the liquid deflects when exposed to an electric field.Polar Molecule Examples
Water is a polar molecule (H2O)Because oxygen atoms have a higher electronegativity than other atoms in the molecule, they attract electrons, making ethanol polar. Ammonia (NH3) is polar.SO2 (sulfur dioxide) is polar.H2S (hydrogen sulfide) is polar.Water (H2O), like hydrogen fluoride (HF), is a polar covalent molecule. When you look at a diagram of water you can see that the two hydrogen atoms are not evenly distributed around the oxygen atom.To learn more about polar liquids refer to
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Just say true or false no explanation needed this is homework.
In the northern hemisphere, gyres rotate in the clockwise direction.
Therefore, the statement on question number 4 is false.
What shape must you make with a wire in a circut to have that current generate a magnetic field that is identical to the magnetic field produced by a normal bar magnet?
a
A straight line
b
An oval
c
A square
d
A coil
Answer:
The correct option is;
d. A coil
Explanation:
When a wire, which is an electric conductor is formed into the shape of a coil, and current is allowed to flow through the wire coil, a magnetic field is generated
The magnetic field generated by the electromagnetic coil has direction that consists of flux emanating from one end of the coil and entering the coil from the other end, similar to that of the magnetic field produced by a normal bar magnet.
Answer:
The maximum speed an object can fall in the presence of air resistance
Newton's third law
A coil
A car is traveling constant spoed ol 12 12 m/s When the driver accelerates, the car reaches a speed of 26 m/s in s What is the average acceleration of the
Answer:
Average acceleration of the car is 1.167 m/s^2
Explanation:
The speed of car with which it is travelling is 12 m/s
As the driver accelerates the car, the speed reaches 26 m/s
The change in speed in 12 seconds is
26 -12 = 14 m/s
Average acceleration is change in speed divided by time
\(\frac{14}{12} \\1.167\) m/s^2
2. What is the total voltage drop across
the first and second resistor?
8v
10v
0 12v
Answer: 8v
Explanation:
The total voltage drop across the first and second resistor is 8 V, hence option A is correct.
What is Voltage?Voltage is the fluctuation in electric potential between the two places. It is sometimes produced by electric pressure, electric tension, or voltage source. The work required to move a test charge between two places in a static electric field corresponds to this. The derived measure for voltage in the International System of Units is called a volt. Work per unit energy is expressed in SI units as joules per coulomb, with 1 volt equaling 1 joule per 1 coulomb.
To detect the voltages between two locations in a circuit, use a voltmeter. A common reference point, like the system's foundation, is frequently utilized as one of the points.
A voltage can indicate either a supply of energy or its loss, dissipation, or storage.
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a 2.50-m segment of wire supplying current to the motor of a submerged submarine carries 1000 a and feels a 4.00-n repulsive force from a parallel wire 5.00 cm away. what is the direction of the current in the other wire?
The 400 A current flowing through the wire will be going the other way from the other wire.
What sort of force is repulsive?An electroscope is a straightforward instrument that consists of a metal piece protruding from a glass jar with thin metal leaves suspended inside. This design demonstrates the electrostatic repulsive force. The leaves spread apart by the Coulomb force when a charged body touches the external metal piece.
We will apply the equation to determine the current in the other wire
F/l = µ₀I₁I₂/2πr and solve it for I₂.
The other wire's current will flow in the opposite direction to the first one because the force is repulsive.
I₂ = F.2πr/µ₀I₁l
I₂ = 4×2π×0.05m/4π×10⁻⁷T.m/A×1000A×2.50m
I₂ = 400 A.
The 400 A current flowing through the wire will be going the other way from the other wire.
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What is the final temperature of 0.1 kg of water initially at 22 *C after 10 kj of heat is added
The final temperature of the given mass of water at the initial temperature is 45.8 ⁰C.
Change in temperature of the waterThe change in temperature of the water is calculated as follows;
Q = mcΔθ
Δθ = Q/mc
where;
c is specific heat capacity = 4200 J/kgCΔθ = (10,000)/(0.1 x 4200)
Δθ = 23.8
Final temperatureT2 - T1 = 23.8
T2 = 23.8 + 22
T2 = 45.8 ⁰C
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3. Why does any bonding occur (this includes ionic bonding and covalent bonding)?
A.to avoid nuclear decay
B.to decrease stability
C.to increase nuclear decay
.
D.to increase stability
Answer:im not sure but hope this helps
Explanation:
Covalent bonds are formed because of sharing electrons whereas ionic bonds formation occurs because of transferring of electrons. Molecules are the particles in covalent bonds all through compound formation whereas in ionic bonds these are positively charged and negatively charged ions.
An object with a potential energy of 981 J is placed at a height of 2m. What is the mass of the object?
Explanation:
Taking g=10m/s²
P.E =mgh
981J= 2×10×m
981J=20m
m. = 981J/20
m. = 49.05kg
A spaceship is floating through space at 500 m/s, initially has a total mass of 6000 kg. How much fuel is needed to increase the spaceship's velocity from 500 m/s to 600 m/s if the exhaust velocity of the fuel is 1.5 km/s
To calculate the amount of fuel needed, we can use the concept of conservation of momentum. The change in velocity can be achieved by expelling mass at a specific exhaust velocity.
First, let's calculate the initial momentum of the spaceship:
Initial momentum = mass * velocity
Initial momentum = 6000 kg * 500 m/s
Initial momentum = 3,000,000 kg·m/s
To achieve a final velocity of 600 m/s, the spaceship needs to increase its momentum by:
Change in momentum = mass * change in velocity
Substituting the given values:
Change in momentum = mass * (final velocity - initial velocity)
Change in momentum = 6000 kg * (600 m/s - 500 m/s)
Change in momentum = 6000 kg * 100 m/s
Change in momentum = 600,000 kg·m/s
Now, let's determine the amount of fuel needed by considering the exhaust velocity. The change in momentum is equal to the momentum gained by the expelled fuel:
Change in momentum = expelled mass * exhaust velocity
Substituting the given values:
600,000 kg·m/s = expelled mass * 1.5 km/s
To convert the exhaust velocity to m/s:
1.5 km/s = 1500 m/s
Now we can solve for the expelled mass:
expelled mass = change in momentum / exhaust velocity
expelled mass = 600,000 kg·m/s / 1500 m/s
expelled mass = 400 kg
Therefore, the spaceship would need 400 kg of fuel to increase its velocity from 500 m/s to 600 m/s with an exhaust velocity of 1.5 km/s.
give at least 4 human activities which demonstrate the involvement of inertial frame of reference
predict the deflection of the pointer (if any) when the power supply is turned on
The deflection of the pointer when the power supply is turned on is expected to be towards the positive side. Here's why A galvanometer is an instrument that is used to measure the flow of current in a circuit. It consists of a coil that is placed inside a magnetic field.
When a current passes through the coil, it experiences a force that causes it to move.The direction of the movement of the coil depends on the direction of the current passing through it. If the current is flowing in one direction, the coil will move in one direction. If the current is flowing in the opposite direction, the coil will move in the opposite direction.The deflection of the pointer in a galvanometer depends on the direction of the current flowing through the coil. When the power supply is turned on, a current will start flowing through the coil in the galvanometer. Since the coil is placed inside a magnetic field, it will experience a force that causes it to move.
The direction of the force that the coil experiences is determined by the direction of the current flowing through it and the direction of the magnetic field. Since the magnetic field is fixed, the direction of the force depends on the direction of the current. If the current is flowing in one direction, the force will be in one direction. If the current is flowing in the opposite direction, the force will be in the opposite direction.The deflection of the pointer will be towards the positive side if the current flowing through the coil is in the same direction as the magnetic field. If the current is flowing in the opposite direction, the deflection will be towards the negative side.
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The slope of a distance-versus-time graph shows an object's
A. speed.
B. time of travel.
C. distance traveled.
D. None of the other answer choices
What is the value of x in the triangle? a 45-45-90 triangle with leg length x and hypotenuse length 4
Answer:
\(x = 2\sqrt 2\)
Explanation:
Given
\(Hypotenuse = 4\)
Required
Find x
Since the triangle is a 45-45-90 triangle, the following relationship exists
\(x^2 + x^2 = 4^2\) --- i.e. the other legs are equal
So, we have:
\(2x^2 = 16\)
Divide both sides by 2
\(x^2=8\)
Take square roots of both sides
\(x = \sqrt 8\)
Simplify
\(x = 2\sqrt 2\)
Answer:
7√2
Explanation:
can the radial velocity method only be used with white dwarf stars
True or False
The given statement " can the radial velocity method only be used with white dwarf stars" is false.
The radial velocity method is a technique used in astronomy to detect exoplanets by measuring the Doppler shift of the host star's spectral lines as the star wobbles due to the gravitational influence of the orbiting planet.
This method can be the used with various types of stars, not just white dwarf stars. In fact, the radial velocity method has been used to discover thousands of exoplanets orbiting a wide variety of stars, including main-sequence stars, giant stars, and even some brown dwarfs.
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The Yerkes Primate Center has existed (or has been in existence) since the 1960s and has a focus in two major areas: Immunology and Vaccine Development and _______.
Answer:
Research towards increasing the understanding of progressive illnesses, such as Parkinson’s and Alzheimer’s diseases.
Explanation:
The Yerkes Primate center was established in 1930 by Robert Yerkes, in Orange Park, Florida. But was moved to its present location in Emory University.
The center has its focus on two major area of research, which are Immunology and Vaccine, and research towards increasing the understanding of progressive illnesses, such as Parkinson’s and Alzheimer’s diseases.
Alan took 4 h 15 min to travel 1/4 of a journey at an average speed of 64 km/h. If Alan wanted to complete the journey in 12 h 45 min, what average speed must he travel at for the rest of the journey? km/h
The average speed Alan must travel at for the rest of the journey is 96 km/h.
The given parameters;
time taken by Alan complete one quarter of the journey = 4 h 15 min = 4.25 haverage speed of Alan = 64 km/htotal time of the motion, T = 12 h 45 min = 12.75 hThe first distance traveled by Alan is calculated as;
\(d_1 = 64 \ km/h \times 4.25 \ h\\\\d_1 = 272 \ km\)
The total distance traveled by Alan is calculated as;
\(\frac{1}{4} \times \ total \ distance = 272 \ km\\\\ total \ distance = 4 \times 272 \ km\\\\ total \ distance = 1,088 \ km\)
The distance traveled by Alan in the second journey is calculated as;
\(d_2 = \frac{3}{4} \times 1,088 \ km = 816 \ km\)
The time of motion for the second journey is calculated as;
\(t_2 = T- t_1\\\\t_2 = 12.75 \ hr - 4.25 \ hr\\\\t_2 = 8.5 \ hr\)
The average speed of Alan in the second journey is calculated as;
\(V = \frac{distance}{time} \\\\V = \frac{816 \ km}{8.5 \ h} = 96 \ km/h\)
Thus, the average speed Alan must travel at for the rest of the journey is 96 km/h.
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the explosive tnt has a heat of combustion of 3406 kj/mol. is this higher or lower than sugar?
TNT has a heat of combustion of -3406 kJ/mol compared to sugar's -5639 kJ/mol.
what is heat of combustion?
The quantity of heat released when a specific amount of a substance undergoes burning is known as the heat of combustion, also known as the calorific value or the energy value. In most cases, the terms "heat of combustion" and "calorific value" are interchangeable. Calorific value is the term used to describe the total amount of energy released during the complete combustion of a given mass of a substance in the presence of (an adequate amount of) oxygen under typical conditions of pressure and temperature.
TNT has a heat of combustion of -3406 kJ/mol compared to sugar's -5639 kJ/mol.
TNT is an explosive because it explodes more quickly due to its lower heat of combustion. Sugar is not explosive and will take a lot longer to heat up or burn.
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Two identical conducting spheres are placed with their centers 0.80 m apart. One is given a charge of +6 × 10−9 C, and the other is given
a charge of −11 × 10−9 C.
Find the electric force exerted on one sphere by the other.
Please help asap
The electric force exerted on one sphere by the other is equal to 9.27 × 10⁻⁷ N.
What is coulomb's law?According to Coulomb’s law, the force of attraction between two charged bodies is the product of their charges and is inversely proportional to the square of the distance by which they are separated. This force acts along the line joining the two-point charges.
The magnitude of the electric force is given by:
\(F = k\frac{q_1q_2}{r^2}\)
where k is constant proportionality and has a value of 8.99 × 10⁹ N.m²/C².
Given the charge on one sphere, q₁ = + 6 ×10⁻⁹ C
The charge on the other sphere, q₂ = -11 × 10⁻⁹C
The distance between these two charges, r = 0.80 m
The magnitude of electric force between the spheres will be:
\(F = 8.99 \times 10 ^9(\frac{6\times 10^{-9}\times 11\times 10^{-9}}{(0.80)^2} )\)
F = 927.09 × 10⁻⁹ N
F = 9.27 × 10⁻⁷ N
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All large radioactive atoms decay into smaller atoms by releasing alpha particles. Each alpha particle has 2 protons, 2 neutrons, and 0 electrons. The table below describes several neutral, low-mass atoms.
A 4-column table with 4 rows, labeled Stable Isotopes of Low-Mass Elements. The first column labeled element name has entries hydrogen, helium, lithium, beryllium. The second column labeled symbol has entries H, H e, L i, B e. The third column labeled atomic number has entries 1, 2, 3, 4. The fourth column labeled number of neutrons has entries 0, 2, 4, 5.
An alpha particle is also referred to as a nucleus of which isotope?
lithium-7
helium-4
hydrogen-2
helium-2
Answer: Helium=4 is the answer
Explanation:
took the test and got it right that'
s the answer.
Answer:
It's b
Explanation:
I took the quiz on EDGE and got it right.
Design a resistor network that has an equivalent resistance of 360 using only 300 and 600 resistors. Use as many as you want. Design a resistor network that has an equivalent resistance of 360 using only 300 and 600 resistors. Use the fewest possible resistors
To design a resistor network with an equivalent resistance of 360Ω using only 300Ω and 600Ω resistors, we can use the series and parallel resistor combinations to achieve the desired resistance.
Option 1: Using as many resistors as desired:
One possible configuration is to connect a 600Ω resistor in series with two 300Ω resistors in parallel. This can be represented as follows:
600Ω -- 300Ω -- 300Ω
The equivalent resistance of two 300Ω resistors in parallel is 150Ω. So, the total equivalent resistance of the network is:
600Ω + 150Ω = 750Ω
This configuration does not result in an equivalent resistance of 360Ω using only 300Ω and 600Ω resistors.
Option 2: Using the fewest possible resistors:
To achieve an equivalent resistance of 360Ω with the fewest possible resistors, we can combine the 300Ω and 600Ω resistors in series and parallel connections.
One possible configuration is to connect a 300Ω resistor in series with a parallel combination of a 600Ω resistor and a 300Ω resistor. This can be represented as follows:
300Ω -- (600Ω -- 300Ω)
The parallel combination of a 600Ω and a 300Ω resistor is calculated as follows:
1 / (1/600Ω + 1/300Ω) = 200Ω
Now, we have the series combination of a 300Ω resistor with a parallel combination of a 600Ω and a 300Ω resistor, resulting in an equivalent resistance of:
300Ω + 200Ω = 500Ω
This configuration does not result in an equivalent resistance of 360Ω using only 300Ω and 600Ω resistors.
Therefore, it is not possible to design a resistor network using only 300Ω and 600Ω resistors to achieve an equivalent resistance of 360Ω.
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Lilia rides 4 m to the school. After school she rides an extra 7 m, but then she rides an extra 8 m in the opposite direction. Whats the distance and displacement?
Please consider answering if you can!
Since distance is a scalar quantity and displacement is the vector quantity, the distance travelled is 19 m while displacement is 3 m
What is Displacement ?Displacement is the distance travels in a specific direction. It is a vector quantity. Both distance and displacement are measured in meter.
Given that Lilia rides 4 m to the school. After school she rides an extra 7 m, but then she rides an extra 8 m in the opposite direction.
The distance will be the sum of all the given parameters. That is,
Distance = 4 + 7 + 8 = 19 m
But displacement is vector quantity.
Displacement = 4 + 7 - 8 = 3 m
Therefore, the distance travelled is 19 m while displacement is 3 m
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Doubling the ________ number effectively doubles camera sensitivity, like opening one stop or increasing gain by 6 db.
Doubling the ISO number effectively doubles camera sensitivity, like opening one stop or increasing gain by 6 dB. The ISO is the level of sensitivity of the camera's sensor to light from the outside environment.
When taking photos in low-light situations, a higher ISO is required. In photographic terminology, doubling the ISO number is known as 'one-stop faster.' As a result, increasing your ISO from 100 to 200 is equivalent to opening up your aperture or increasing your shutter speed by one stop, both of which double the amount of light that reaches the sensor. Furthermore, increasing your ISO may result in an increase in the camera's sensitivity, but it also has a disadvantage, which is an increase in image noise, commonly known as grain. As a result, even if you're taking pictures in low light, you'll want to keep your ISO as low as possible to avoid producing noisy images.
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Encuentra la magnitud y dirección de la suma de los siguientes vectores: A= 7m al noreste B= 12m 50° al oeste del norte
i have a few questions
multipe choice
8) Kinetic energy is the energy of ________.
9)The potential energy of an object depends on its ________ and its height.
10) The law of ________ of energy states that energy can be neither created nor destroyed, but it can change its form.
11) Stored energy is called ________ energy.
12) When you move your hand or foot, your body has converted potential energy into ________ energy.
13) When coasting while roller skating, you eventually stop due to ________.
please and thank you
Energy refers to the ability or capacity to do work. Energy can be of various types as follows:
Mechanical energy (kinetic or potential)Electrical energyLight energySolar energyHeat energyKinetic energy is energy possessed by an object because of its motion while potential energy is energy possessed by an object because of its position or its condition.
The law of conservation of energy states that energy cannot be created nor destroyed but can only be transformed i.e. converted from one form to another.
Friction is a force that resists the relative motion or tendency to such motion of two bodies in contact.
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Which process is represented inside of the dashed circle?
Evaporation
Condensation
Precipitation
Transpiration
Answer each question yes or no. Must two quantities have the same dimensions (a) If you are adding them? (b) If you are multiplying them? (c) If you are subtracting them? (d) If you are dividing them? (e) If you are equating them?
(a) If you are adding them: Yes, two quantities being added must have the same dimensions. When adding quantities, it is essential that they have the same units to ensure that the operation is mathematically meaningful.
(b) If you are multiplying them: No, two quantities being multiplied do not need to have the same dimensions. Multiplication is valid between quantities of different dimensions. The resulting unit of the product will depend on the units of the individual quantities being multiplied.
(c) If you are subtracting them: Yes, two quantities being subtracted must have the same dimensions. Subtraction requires the quantities to have the same units to ensure that the operation is mathematically valid.
(d) If you are dividing them: No, two quantities being divided do not need to have the same dimensions. Division is valid between quantities of different dimensions. The resulting unit of the quotient will depend on the units of the numerator and denominator.
(e) If you are equating them: Yes, two quantities being equated must have the same dimensions. Equating quantities means that they are equal in magnitude and unit, so their dimensions must match.
In summary, the requirement for the same dimensions varies depending on the operation performed between the quantities. Addition and subtraction require the same dimensions, while multiplication, division, and equation do not have this requirement.
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how do you know the pole on the left is the south pole and the pole on the right is the north pole?
Answer:
Left is deciamled to the right \(x_{123}\)
Explanation:
If a 25 kg object is moving at a velocity of 10 m/s, the object has
energy. Calculate it.
Answer: Your answer is 1250J
Explanation:
K E = 1/2 m v 2
The mass is
m = 25 k g
The velocity is v = 10 m s − 1
So,
K E = 1 /2 x25 x 10 2^2= 1250 J
pls mark brainiest answer
pls help if u do it 100 points
Answer:
hhuuufuhrhuuuryheu7uhhehfu
The primary __________ cortex specializes in receiving signals from different parts of the body.
A.
visual
B.
motor
C.
somatosensory
D.
auditory
Answer:
C. somatosensory
Explanation:
The somatosensory cortex is located in the front area of the parietal lobe. It receives signals for various areas of the body registering sensory input.
The primary somatosensory cortex specializes in receiving signals from different parts of the body.
What is somatosensory?The somatosensory is subsystem of nervous system that represents visual stimulus.
The somatosensory system is the network of neural structures in the brain and body that helps us to detect touch, temperature, and pain.
Thus, the primary somatosensory cortex specializes in receiving signals from different parts of the body.
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