Answer:
D.) Nuclear fusion begins under high pressure
Explanation:
Is water wet?
I need an argument.
Answer:
no :)
Explanation:
ezzzzzzzzzzzzzzzzzzzz
Liquid water is not itself wet, but can make other solid materials wet. Wetness is the ability of a liquid to adhere to the surface of a solid, so when we say that something is wet, we mean that the liquid is sticking to the surface of a material.
A charge q1 of -5.00 x 10^-9 C and a charge q2 of -2.00x 10^-9 C are separated by a distance of 40.0 cm. Find the equilibrium position for a third charge of +15.0x 10^-9 C.
Answer:
Explanation:
Let the equilibrium position of third charge be x distance from q₁.
Force on third charge due to q₁
= 9 x 10⁹ x 5 x 10⁻⁹ x 15 x 10⁺⁹ / x²
Force on third charge due to q₂
= 9 x 10⁹ x 2 x 10⁻⁹ x 15 x 10⁺⁹ /( .40-x)²
Both the force will act in opposite direction and for balancing , they should be equal.
9 x 10⁹ x 5 x 10⁻⁹ x 15 x 10⁺⁹ / x² = 9 x 10⁹ x 2 x 10⁻⁹ x 15 x 10⁺⁹ /( .40-x)²
5 / x² = 2 / ( .4 - x )²
Taking square root on both sides
2.236 / x = 1.414 / .4 - x
2.236 ( .4 - x ) = 1.414 x
.8944 - 2.236 x = 1.414 x
.8944 = 3.65 x
x = .245 m
24.5 cm
So the third charge should be at a distance of 24.5 cm from q₁ .
Explain how energy is converted from potential to kinetic energy when a pendulum is swinging
Answer:
Once the weighted end of the pendulum is released, it will become active as gravity pulls it downward. Potential energy is converted to kinetic energy, which is the energy exerted by a moving object. An active pendulum has the most kinetic energy at the lowest point of its swing when the weight is moving fastest.
Explanation:
Can someone help me solve number 3 for chemical equations?
Answer:
I'm pretty sure it should be 4KClO3-->3KClO4+1KCl
Explanation:
The allowed energies of a simple atom are 0.0 eV, 4.0 eV, and 6.0 eV.Part A. What wavelength(s) appear(s) in the atom's emission spectrum? If there is more than one answer, enter your answers in ascending order separated by commas.Part B. What wavelength(s) appear(s) in the atom's absorption spectrum? If there is more than one answer, enter your answers in ascending order separated by commas.
The wavelength appear in the atom's emission spectrum and atom's absorption spectrum are determined to be 3.1 x 10^-7m and 2.1 x 10^-7 m respectively.
A spectrum of atomic emission lines: what is it?When light is dispersed into its various frequencies by a prism, a pattern of lines called an atomic emission spectrum is the result. The hydrogen atomic emission spectrum is depicted in the figure below.
Planck's theory:
E = hc/λ;
h => planck's constant
λ => wvelength
for 4eV:
λ = hc/E
=> 6.626 x 10^-34 x 3 x 10^8/ 4 x 1.602 x 10^-19
=> 3.1 x 10^-7m
for 6 eV:
=> 6.626 x 10^-34 x 3 x 10^8/ 6x 1.602 x 10^-19
=> 2.1 x 10^-7 m
How is a spectrum of atomic absorption created?When light is transmitted through a cold, diluted gas, the gas's atoms absorb at specific frequencies, creating an absorption spectrum. Since the re-emitted light is unlikely to go in the same route as the absorbed photon, this leads in dark lines (absence of light) with in spectral region.
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A patient’s heart pumps 5.00 L of blood per minute into the aorta, which has a diameter of 1.80 cm. The average force exerted by the heart on the blood is 16.5 N. What is the average mechanical power output of the heart?
Pressure (P) = F/A
diameter = d = 1.80 cm = 0.018 m
F = force = 16.5 N
Volume pump = 5 L = 5000 cm^3 = 0.005 m^3
Area = pi* r^2 = pi* (0.018/2)^2 = 2.54 x10^-4 m^2
P = 16.5 / 2.54 x10^-4 = 64,840.9 N/m^2
Power = w *d / time = 64,840.9 N/m^2 * 0.005 m^3 / 60 s = 5.4 Watt
describe periscope.
Answer:
periscope, an optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armor, or submerged.
Explanation:
If the ratio of numbers of turns in secondary to primary coil is 1:4. calculate teh secondary voltage where primary voltage is 220v
Answer:
Ns/Np=1/4
Vs=?
Vp=220V
Ns/Np=Vs/Vp
Vs=Ns/NpxVp=1/4x220=55V
Explanation:
a person on a boat moving north at 15 m/s throws a rock due east at a speed of 8 m/s. what is the magnitude (the number of meters per second), of the resultant velocity of the rock?
The magnitude (the number of meters per second), of the resultant velocity of the rock is 23 m/s.
What is the magnitude?A person on a boat moving north at 15 m/s throws a rock due east at a speed of 8 m/s.Add all of the numbers for the x-components together, square that number to get the magnitude of the resulting velocity. Add this to the earlier value after doing the same operation for the y-components. Finally, to determine the magnitude, square the result.The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t).15 m/s + 8 m/s = 23 m/s.
The magnitude (the number of meters per second), of the resultant velocity of the rock is 23 m/s.
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who is the current electric minister of Nepal?
i think "Barsaman Pun"
Explanation:
BARSAMAN PUN IS THE CURRENT ELECTRIC MINISTER OF NEPAL.
HOPE IT HELP.....❤❤☺a closed end manometer was constructed from a u-shaped glass tube which was 80.0 cm high. it was loaded with mercury so that the closed side was filled all the way to the top (80.0 cm above the neck) while the open end was at a level 18.0 cm above the neck. it was taken into a chamber used for training astronauts. what is the highest pressure, in torr, that can be read on this manometer? a. 62.0 torr b. 62.5 torr c. 98.0 torr d. 98.5 torr e. 620. torr
The highest pressure which can be read in the closed-end glass manometer is given by option e 620 torr
At the highest pressure, the height of mercury in the closed end will be 80 cm. The height of mercury in the open end will be 18 cm. The pressure read on the manometer = pressure exerted be difference in heights of mercury in the closed end manometer = 80-18 cm of mercury = 62 cm of mercury= 62 cm of Hg
62 cm of Hg = 620 mm of Hg
We know that 1 mm Hg = 1 Torr.
Therefore 620 mm Hg = 620 Torr. answer
Thus the answer for the highest pressure that can be read in torr on this manometer is option e which is 620 torr
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What are the tubes that equalize pressure to the eardrum in a frog?
In a frog, the tubes that equalize pressure to the eardrum are known as Eustachian tubes. It helps in maintaining the pressure balance between the middle ear and the external environment.The Eustachian tubes in frogs are similar to the ones present in humans. The Eustachian tube is a long, narrow tube that connects the middle ear to the nasopharynx.
The tube is lined with mucous membranes and is responsible for regulating air pressure in the middle ear to equalize it with the pressure outside the body. This ensures that the eardrum vibrates correctly and that sound waves can be transmitted to the inner ear.The Eustachian tube in frogs is crucial to their survival as they are amphibians, and they need to have a functional hearing system for detecting predators and prey. The Eustachian tube helps the frog to regulate the pressure in the middle ear while swimming, which prevents damage to the eardrum due to pressure differences.The Eustachian tube also serves another purpose in frogs, it is used for respiration. Frogs breathe through their skin and mouth, but when they dive underwater, they use their Eustachian tubes to take in air. The frog closes its mouth and nostrils, while the lungs are empty, to draw in oxygen-rich air through the Eustachian tubes. This way, the frog can stay underwater for longer periods without suffocating or drowning.
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Is the field line pattern created by a magnetic dipole far from the source of the fields the same as the field line pattern created by an electric dipole?.
Both E and B as 1/\(r^{8}\) so with distance from dipole, they will be changing in same manner. Hence far from the source of the magnetic field they will have same pattern.
An item known as a magnetic dipole generates a magnetic field that is analogous to the field produced by a pair of north and south magnetic poles. Several events can produce a magnetic dipole. North/South pole pairs, such as in permanent magnets, closed current loops, like in solenoids, and naturally occurring magnetic dipoles, like electrons, are examples of magnetic dipoles. These processes all produce magnetic fields that are thought to act like magnetic dipoles and have very similar magnetic field line patterns. The magnetic field lines for north/south pole pairs are roughly the same as those produced by a bar magnet.
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If the plate area, plate separation, and dielectric constant are all doubles for a parallel plate capacitor, what happens to the capacitance?
If the cross-section of the area of the plate, the distance between the plate, and the dielectric constant are all doubled for a parallel plate capacitor, the capacitance of the parallel plate capacitor is doubled.
C = \(\frac{K\epsilon A}{d}\)
where C refers to the capacitance
K is the dielectric contsant
d is the separation between two plates
A is the area of the plates
According to the question, the new capacitance comes out to be
C' = \(\frac{2K\epsilon (2A)}{2d}\) = \(\frac{2K\epsilon A}{d}\)
C' = 2C
Therefore, we can say the parallel plate capacitance is doubled with a doubling of plate area, plate separation, and dielectric constant.
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An object accelerated at a rate of 50 m/s/s. A force of
100 N was used to make this happen. What is the mass
of the object?
Answer:
2kg
Explanation:
100N= force 50m/s²=acceleration
mass=?
the equation is;
Mass(kg)= Force(N) ÷ Acelleration(m/s²)
100÷50=2
Paper clip Y is not attracted to the magnet. Which step should the student take to attract it?
O A The student should use a battery with less energy.
O
8
D
The student should use a smaller core in the magnet.
The student should wrap the coil fewer times around the nail.
The student should move the magnet closer to the paper clip.
Answer:d
Explanation:magnet is to weak
Answer: that means to shut your trap you little turd
Explanation:
You and your friend see a ball rolling across the floor to the right. Your friend says
that because it is moving to the right, it must have a net force on it pushing it to
the right. Do you agree with her? Why or why not?
Your answer
Answer:
unforturnitly
Explanation:
step unstepable
how much power is required to lift a 200n box a distance of 2 meters in 3 seconds? a. 66.6 w b. cannot be determined. c. 133.3 w d. 400 w
To lift a 200N box a distance of 2 meters in 3 seconds, the amount of power required is 133.3W. Therefore, the correct option is C.
Power is defined as the rate at which energy is expended or the rate at which work is done. Power is often calculated as the product of force and velocity, or as the rate of change of work. It is measured in watts (W), which are equal to joules (J) per second (s).
Formula to calculate power is: Power = Work / Time
Formula to calculate work done is:
Work done = Force x Distance
Power is equal to the work done per unit time, as per the formula.
The force required to lift the box is equal to its weight, which is 200N. So,
Work done in lifting the box = Force × Distance= 200 N × 2 m= 400 J
Now,
Power = Work / Time = 400 J / 3 s= 133.3 W
Thus, option (c) 133.3 W is the correct answer.
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at an outdoor concert you sit close to the stage and between two speakers. you find the sound to be surprisingly faint, and people just a few seats away can hear the music very well. what is the primary reason for this?
Therefore, people sitting a few seats away from the person may not be in the acoustic shadow zone and can hear the music clearly.
The primary reason for the sound being faint in the case of the person sitting close to the stage and between two speakers is due to the acoustic shadow zone. When the sound waves emanate from the speakers, they spread out in all directions, and as they reach the person, some of the sound waves are blocked by the person's head, resulting in an acoustic shadow zone.
In this case, since the person is sitting close to the stage and between two speakers, they are located in the middle of the two speakers, which creates an acoustic shadow zone. This zone is a region where sound waves from both speakers partially cancel each other out, resulting in reduced sound levels.
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you are observing a cross-section of animal tissue. under the 100x objective lens, you count 11 cells from one side of the field of view (fov) to the other. you remember that the fov under the 100x objective lens is 0.2 mm . what is the diameter of an individual cell?
The diameter of an individual cell would be 0.01818 mm.
To calculate an object's size when observing said object under a microscope, one must remember to calculate the field of view and the enlargement (how many x the objective lens is).
In the case above, the enlargement is 100x. You already know that the field of view (FoV) under the 100x objective lens is 0.2 mm. Besides that, you are observing 11 cells across the field of view. Cells, in general, have more or less the same size as long as they are the same type from the same location, and since there is no further information to establish this, we can assume that the cells do have the same sizes more or less.
The diameter of an individual cell can be calculated by dividing the field of view (0.2 mm) by the number of cells (11). Therefore, the diameter of an individual cell is 0.01818 mm.
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During reading:
1. Name two types of situations in which stars create elements and fling them out into space.
Answer: Reasons are below <3
Explanation:
Reason 1. Some of the heavier elements in the periodic table are created when pairs of neutron stars collide cataclysmically and explode, researchers have shown for the first time.
Reason 2. Light elements like hydrogen and helium formed during the big bang, and those up to iron are made by fusion in the cores of stars.
Brainliest? <33
You need eye drops for your dry eyes. You brought only a few dollars with you to the store. Which is the best method of choosing the right eye drops to buy for your soft contact lenses
Answer:
Compare brands first, but purchase the one that has lots of commercial advertisements, Compare ingredients and purchase the brand that is safe to use with soft contact lenses, Compare prices and purchase the most inexpensive brand.
Explanation:
3. The pressure at the bottom of the ocean is great enough to crush submarines with steel walls that are 10 centimeters thick. Suppose a submarine is at a depth of 1,000 meters. The weight of water above each square meter of the submarine is 9,800,000 newtons.
Answer:
just awnsered this one your awnser is the the second option
Answer:
answer one
Explanation:
At the center, 6 unmarked red balls are interspersed with 4 blue balls marked with plus signs. A green cloud with 2 concentric white lines surrounds the center, with 2 small green balls marked with minus signs on the inner white line and 2 small green balls marked with minus signs on the outer white line. How many neutrons does this atom have? 4 6 10 14
Answer:
10
Explanation:
Amu denotes for unified atomic mass.
it is mostly used to define the atom's mass and molecules.
we know that
One unit of amu is 1 ÷ 12 of the mass of a nuclide 12C
And 1 u = 1.660 538 921 × 10-27 kg
In the inside we can found that there is 10 nucleons so here the alss of the atoms would be 10 amu
Answer:
guy above me is right
Explanation:
You have a resistor 200 ohm, a 0.400-H inductor, a 5.00 uF capacitor, and a variable frequency ac source with an amplitude of 3.00 V. You connect all four elements together to form a series circuit. What will be the current amplitude at an angular frequency of 400rad/s? At this frequency, will the source voltage lead or lag the current?
The current amplitude in the series circuit at an angular frequency of 400 rad/s will be approximately 1.20 mA. At this frequency, the source voltage will lead the current.
The current amplitude can be calculated using the impedance formula for a series RLC circuit. The impedance (Z) of the circuit is given by:
\(\[ Z = \sqrt{R^2 + (X_L - X_C)^2} \]\)
where R is the resistance, XL is the inductive reactance, and XC is the capacitive reactance. The inductive reactance (XL) and capacitive reactance (XC) can be calculated using the formulas:
\(\[ X_L = \omega L \]\)
\(\[ X_C = \frac{1}{\omega C} \]\)
where ω is the angular frequency, L is the inductance, and C is the capacitance. Plugging in the given values, we get:
\(\[ X_L = (400 \, \text{rad/s}) \times (0.400 \, \text{H}) = 160 \, \Omega \]\)
\(\[ X_C = \frac{1}{(400 \, \text{rad/s}) \times (5.00 \times 10^{-6} \, \text{F})} = 5000 \, \Omega \]\)
Substituting these values into the impedance formula:
\(\[ Z = \sqrt{(200 \Omega)^2 + (160 \Omega - 5000 \Omega)^2} \approx 5016 \Omega \]\)
The current amplitude (I) can be calculated using Ohm's Law:
\(\[ I = \frac{V}{Z} = \frac{3.00 \, \text{V}}{5016 \Omega} \approx 0.598 \, \text{mA} \]\)
Therefore, the current amplitude at an angular frequency of 400 rad/s is approximately 0.598 mA.
In a series RLC circuit, the relationship between the source voltage and the current is given by the phase angle. When the source voltage leads the current, it means that the voltage reaches its maximum value before the current. In this case, at an angular frequency of 400 rad/s, the capacitive reactance (XC) is larger than the inductive reactance (XL). This causes the current to lag behind the source voltage, resulting in a phase angle of less than 90 degrees. Therefore, at this frequency, the source voltage will lead the current in the series RLC circuit.
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On which object will Earth's gravity act with the greatest magnitude? *
An apple
A cereal bowl
A watermelon
A TV remote
Answer: The watermelon
Explanation: The watermelon has a larger mass than the rest of the three.
approximately how much greater is the force of gravity at the surface of the white dwarf than at the surface of the earth?
NASA estimates that a white dwarf's surface has 350,000 times as much gravity as Earth has.
What transpires when a white dwarf is larger than 1.4 solar masses Why is this beneficial?If the mass is too enormous (more than 1.4 solar masses, known as the Chandrasekhar limit), a white dwarf star will no longer be in equilibrium between gravity and degeneracy pressure.
What is the gravitational pull on the white dwarf Sirius B?Sirius B is smaller than Earth at 7,500 miles (12,000 kilometers) in diameter, but it is more denser. A 150-pound individual would weigh 50 million pounds standing on its surface due to the star's strong gravitational field, which is 350,000 times stronger than Earth's.
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1. A satellite (mass = 4.44 x 109 kg) travels in orbit around the Earth at a distance of 1.9 x 10'm above
Earth's surface. What is the force of gravitational attraction between the satellite and Earth?
Answer:
The force of gravitational attraction between the satellite and Earth is \(2.587\times 10^{10}\) newtons.
Explanation:
Statement is incorrect. Correct statement is:
A satellite (\(m = 4.44\times 10^{9}\,kg\)) travels in orbit around the Earth at a distance of \(1.9\times 10^{6}\,m\) above Earth's surface. What is the force of gravitational attraction between the satellite and Earth?
The gravitational force experimented by the satellite (\(F\)), in newtons, is calculated by Newton's Law of Gravitation, whose equation is defined by following formula:
\(F = \frac{G\cdot m \cdot M}{R^{2}}\) (1)
Where:
\(G\) - Gravitational constant, in cubic meters per kilogram-square second.
\(m\) - Mass of the satellite, in kilograms.
\(M\) - Mass of the Earth, in kilograms.
\(R\) - Distance of the satellite with respect to the center of the Earth, measured in meters.
If we know that \(G = 6.674\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}}\), \(m = 4.44\times 10^{9}\,kg\), \(M = 5.972\times 10^{24}\,kg\) and \(R = 8.271\times 10^{6}\,m\), then the force of gravitational attraction between the satellite and Earth is:
\(F = 2.587\times 10^{10}\,N\)
The force of gravitational attraction between the satellite and Earth is \(2.587\times 10^{10}\) newtons.
Which aspect must be taken into consideration when creating a model of radioactive decay?
Answer:
The weak nuclear force perhaps?
Explanation:
the weak nuclear force is the fundamental force responsible for the radioactive decay of particles
16. Which of these provides most of the oxygen in Earth's
atmosphere?
coral reefs
rainforest plants
ocean phytoplankton
continental grasslands
Answer:
Ocean phytoplankton
Explanation:
The sea and ocean creates oxygen from the plants (sea creatures) that exist there. These plants generate oxygen when used as a-product of photosynthesis, a mechanism that transforms carbon dioxide through sunlight into carbohydrates that the body(plants) can use for nutrition.