The higher the voltage across a bulb the b__________ it is.
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Related Questions
If you drop a 4 cubic-centimeter block into a graduated cylinder that is half full of water, how much will the water level rise?
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Decide 4
With 2
4/2
how does the electric flux through the two surface elements, dφa and dφb change when the charge is moved from position 1 to position 2?
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If the electric flux across the two surface elements changes as the charge moves from position 1 to position 2, dΦA increases and dΦB decreases.
The formula for the electric field is
The electric flux through the surface dB for position 1 is
dΦB= EbdB
=(kQ/ Rb²) dB
Similarly, the electric flux through the surface dB for position 2 is
dΦA = Ea dA
=(KQ/Ra²) dA
From the given equations, Rb>Ra, and dB = dA Therefore, the electric flux dø, decreases and electric flux do, increases.
The amount of electric lines of force (or electric field lines), which cross a certain region, is referred to as electric flux, a feature of an electric field. According to this theory, electric field lines begin with positive electric charges and end with negative charges. Field lines pointing towards a closed surface are deemed negative, whereas those pointing away from it are deemed positive.
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The largest deflection from the isoelectric line in the ECG is found in the Multiple Choice A) P wave. B) T wave. C) T-P segmept. D) QRS complex. E) P-R interval.
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The largest deflection from the isoelectric line in the ECG is found in the QRS complex.
The correct option is D.
What is an ECG?An ECG (electrocardiogram) is a medical test that records the electrical activity of the heart. It is a non-invasive procedure that involves attaching electrodes to the skin of the chest, arms, and legs, which detects the electrical signals generated by the heart as it beats. These signals are amplified and recorded, producing a visual representation of the heart's electrical activity over time, known as an ECG waveform.
The QRS complex is the largest deflection from the isoelectric line in the ECG. It represents the depolarization of the ventricles and is typically a sharp, narrow peak.
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What is the kinetic energy of a penguin with a mass of 8 kg that is running at a speed
of 3 m/s?
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Answer:
Answer is in the attached photo.
Explanation:
SolutionThe solution is in the attached photo, do take note in order to solve this question, we have to use the formula for Kinetic Energy:
K.E = \(\frac{1}{2} mv^{2}\)
The kinetic energy of the penguin with an 8 kg mass and a speed of 3 m/s, is 36 joules.
Explanation:The formula of kinetic energy is:
Ec = m * v²/2Where
Ec = Kinetic Energym = massV = speedWhat is the kinetic energy of a penguin with a mass of 8 kg that is running at a speed of 3 m/s?
Data:
Ec = ?
m = 8 kg
V = 3 m/s
As in the statement asks us to calculate the energy, we must not perform the formula clearance. We replace data and solve.
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{Ec=\frac{m\times v^2}{2} \iff \ Ec=\frac{8 \ kg\times\left(3 \ \dfrac{m}{s}\right) }{2} } \end{gathered}$} }\)
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{ \ Ec=\frac{8 \ kg\times9 \ \dfrac{m^2}{s^2} }{2} } \end{gathered}$} }\)
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{ \ Ec=\frac{72 \ kg\times \ \dfrac{m^2}{s^2} }{2} } \end{gathered}$} }\)
We break down the units of m^2 = m * m.
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{ \ Ec=36 \ kg\times \ \frac{\not{m^2}}{s^2} \to \ m\times m } \end{gathered}$} }\)
We have kg * m/s^2 = Newton.
\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{ \ Ec=36 \ N\times m } \end{gathered}$} }\)
\(\boxed{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{ \ Ec=36 \ Joules} \end{gathered}$} }}\)
The kinetic energy of the penguin with an 8 kg mass and a speed of 3 m/s, is 36 joules.
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Below, you will see a nuclear fission reaction: NUCLEAR FISSION A neutron slams into a Uranium-235 atom beginning the fission process. The products of this reaction are: Barium-141; Krypton-92; and 3 neutrons. + + + + + Please write the equation in the blanks below:
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The nuclear fission reaction of Uranium-235 atom produces Barium-141, Krypton-92 and 3 neutrons.
What is nuclear fission?Nuclear fission is a nuclear reaction in which the atomic nucleus of a heavier element disintegrates or splits to produce two or more atoms of elements with smaller nuclei.
The nuclear fission reaction in which a neutron is used to bombard the nucleus of Uranium-235 atom to produce Barium-141, Krypton-92 and 3 neutrons is given below
\(_{235}U + \: _{1}n^{o} \rightarrow \: _{141}Ba+ \: _{92}Kr + 3 \: _{1}n^{o} \)
Therefore, the nuclear fission reaction of Uranium-235 atom produces Barium-141, Krypton-92 and 3 neutrons.
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changes in acceleration:unbalanced forces::__________:balanced force a no changs in acceleration b gravity c stretched rubber band d friction
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Answer:
Explanation:
No changes in acceleration
Another help plz it’s very urgent
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PLS HELP RN
A stone is thrown horizontally from the top of a 31.2 m tall cliff. The stone lands at a distance
of 21.4 m from the edge of the cliff. What is the initial horizontal velocity of the stone?
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When a stone is hurled horizontally from the top of a 31.2 m tall cliff, its horizontal initial velocity is 39.25 m/s.
What is the initial horizontal velocity formula?By measuring the ball's diameter d and dividing it by the time t it takes for it to cross the photogate, one can also calculate the ball's starting horizontal velocity. Therefore, Vo = d/t. The kinematics equations of motion can be used to calculate the horizontal velocity of a projectile motion made by a person or an item.
Calculation:Height of cliff is 31.2 m
distance is 21.4
t = √2h/g
t = √2×31.4/9.8
t = √62.8/9.8
t = 0.80
The stone's first motion:V = 31.4/0.08
V = 39.25 m/s.
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When air expands it and it is warm outside then the air is ________________________
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When air expands it is warm outside then the air is contracted and becomes cool.
What is air?The atmosphere of Earth or also known as air is the layer of gases retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere.
When warm air expand, the molecules heat and move faster makin them to move apart. So we know that air expands when heated and contracts when cooled, the reason for that is because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Atmospheric convection helps us to understand that as air heats up and becomes less dense, it rises higher into the air. As it reaches higher elevations, it encounters less air pressure. The lower air pressure at higher elevations allows the air to expand even more. As this air continues to expand, it begins to cool down.
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The interior of the Earth is extremely hot. This heat can be brought to the surface by pumping cold water down and then receiving hot water when it comes back up. The water coming from these pumps can be used to generate electrical energy, from geothermal energy.
- Describe two benefits of using geothermal energy as a resource for energy.
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Answer:
Thermal energy and Mechanical
Explanation:
suppose you were given a new unknown material and wanted to place it on the electrostatic series. describe tests you could do to accurately
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electrostatic attempting to calculate the charges of two friction-charged items. Include an explanation of WHY electrons flow from one material to another.
Which substance produces static electricity the best?Wool, human hairs, dry skin, silk, rayon, tissue paper, plastic wrap, and polyester are examples of materials that tendency to gain or lose electrons; when you tested these materials, you should have discovered that they shifted the silver ball similarly to how the Expanded polystyrene plate did.
What is an example of electrostatic charge?On insulating or unground surfaces, an excess or deficit of electrons results in static electricity, often known as an electrostatic charge. Triboelectric charges—charges created by friction between the two surfaces, for example the movement of two surfaces—are what cause it to occur.
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.If a bus accelerates from 10 m/s to 15 m/s in 10 seconds with a force of 3000N what is its mass?
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The mass of the bus that accelerates from 10m/s to 15 m/s is 600 kg.
What is mass?Mass is the quantity of matter a body contains.
To calculate the mass of the bus, we use the formula below.
Formula:
m = Ft/(v-u)................... Equation 1Where:
m = Mass of the bust = TimeF = Forcev = Final velocityu = Initial velocityFrom the question,
Given:
F = 3000 Nt = 10 secondsv = 15 m/su = 10 m/sSubstitute these values into equation 1
m = (3000×10)/(15-10)m = 30000/5m = 6000 kgHence, the mass of the bus is 600 kg.
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Which option is an example of a chemical reaction that occurs at a very slow rate?
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Answer:D
Explanation:
:)
a force of 3600 n is exerted on a piston that has an area of 0.040 m2 what force is exerted on a second piston that has an area of 0.20 m2 use f1 a1= f2 a2
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Using the Pascal's principle formula, the force exerted on the second piston is 18000 N.
What is the force exerted on the second piston?The force on the second piston is determined using the formula from Pascal's principle.
The formula is given below:
\(\frac{f_{1}}{A_{1}} = \frac{f_{2}}{A_{2}}\)
Solving for the force on the second piston, \({f_{2}\)
\({f_{2} = \frac{A_{2}\times f_{1}}{A_{1}}\)
\({f_{2} = \frac {0.2\times3600}{0.04} = 18000 N\)
In conclusion, the force on the second piston is 18000 N.
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Why does water that is frozen in an ice cube tray stay in the shape of a cube when it is
taken out of the tray?
A. The water particles can only slip past one another.
B. The water particles become locked in place.
C. The water particles stop moving completely.
D. The water particles grow bigger to fill the space.
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Water freezes to form ice cubes. In this solid structure, particles are strongly bonded each other thus, the water particles become locked in place.
What is freezing point?Freezing point is the temperature at which the substance converts from liquid state to solid state. In solid state, all particles are strongly bonded together.
In water, particles in liquid state are free to flow and they are not locked at all. In gaseous state no definite shape or volume are there and particles are away from each other and they diffuse easily.
In solid state particles are not at all free to flow and thus they are locked in place. That's why water molecules are locked in place in a cube until they melt completely.
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HI PLEASE HELP!
How do glow sticks affect the temperature of hot an cold water?
Will give brainliest. Will report any links or irrelevant answers so don’t even try.
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Answer:
Chemical reactions occur slower at lower temperatures and faster at higher temperatures. When you put a glow stick in cold water, the chemical reaction slows down but will last for a longer period of time. When you put a glow stick in hot water, the reaction speeds up but will be over quicker.
Explanation:
(self-explanatory)
I hope this helps, have a nice day.
Which of the following happens to an object in uniform circular motion?
A. it’s velocity changes
b. it’s speed changes
c. it’s centripetal acceleration changes
d. the direction of its velocity stays the same
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Answer:its velocity changes
Explanation:
Calculate the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm.
a. 4.85×10−19 J4.85×10−19 J.
b. 2.06×10−19 J2.06×10−19 J.
c. 8.13×10−19 J8.13×10−19 J.
d. 1.23×10−19 J1.23×10−19 J.
e. 5.27×10−19 J5.27×10−19 J.
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Option A is correct.
The energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm is 4.85×10−19 J.
The formula to calculate the energy is:
E = hc/λ
Where
E is the energy, h is planck's constant, c is speed of light, and λ is the wavelength.
Putting the values in the formula:
E = 6.63×10^34 × 3.8×10^8/410.1 ×10^9
E = 4.85×10−19 J4.85×10−19 J.
Thus the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm is 4.85×10−19 J.
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What is the frequency of a wave that has a velocity of 63m/s and a wavelength of
12m?
Your Answer:
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Answer:
5.25 Hz
Explanation:
The formula for calculating the frequency of a wave is:
frequency = velocity/wavelength
Substituting the given values, we get:
frequency = 63 m/s / 12 m
Simplifying this expression, we get:
frequency = 5.25 Hz
The frequency of the wave is 5.25 Hz
About how long does it take earth to make a make 1 revolution around the sun a a day be a week see a month d a year
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L=0.7m
m=2kg
Calculate the frequency of the pendulum
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According to the given data the frequency of the pendulum is 0.595 Hz.
What is frequency and Hz?Frequency is defined as the rate of changes in current direction per second. It is given in hertz (Hz), an internationally recognised unit of measurement. One cycle per second is equal to one hertz. Cycles per second are represented by the unit hertz (Hz). A cycle is a full cycle of an opposing current or voltage wave.
What makes frequency important?The time rate of change observed in cyclical and periodic phenomena, such as mechanical motion, audio signals (sound), radio waves, and light, is specified by the frequency, an essential parameter in science and engineering.
Briefing:Calculate the period of oscillations formula is
T = 2π√(L/g)
T = 2 * π * √(0.7/9.80665)
T= 1.678 s
Then the frequency as the reciprocal of the period
f = 1/T
f =1/1.678
f = 0.595 Hz.
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Select the correct answer. What can be found by counting the number of troughs per second in a wave diagram? A. Amplitude B. Direction C. Frequency D. Speed E. Wavelength.
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Option C is correct. Frequency can be found by counting the number of troughs per second in a wave diagram.
What is the frequency?Frequency is defined as the number of repetitions of waves occurring in 1 second. It can also be said that Frequency is defined as the number of cycles completed in 1 second.
Frequency is given by the formula as,
\(\rm f=\frac{1}{t}\) Hz.
Hence option C is correct. Frequency can be found by counting the number of troughs per second in a wave diagram.
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Answer:
C is correct
Explanation:
does anyone know the answers to these ?
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Two skateboarders collide and grab onto one
another. The first skateboarder has a momentum of 525 kg • m/s, and the second skateboarder had a momentum of -576 kg•m/s immediately before they collide
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The magnitude of their final momentum immediately after the collision is 51 Kgm/s and their direction immediately after the collision will be in the direction of the second skateboarder.
What is Momentum ?Momentum is the product of mass and velocity. Momentum can also be the product of force and time.
Given that two skateboarders collide and grab onto one another. If the first skateboarder has a momentum of 525 kg • m/s, and the second skateboarder had a momentum of -576 kg•m/s immediately before they collide, that means their collision was head - on - collision.
According to the conservation of linear momentum, the magnitude of the sum their final momentum immediately after the collision will be the same with the sum of the magnitude of their momentum before collision. That is,
Final momentum = 525 - 576
Final momentum = - 51kg•m/s
And their direction immediately after the collision will be in the direction of the second skateboarder.
Therefore, the magnitude of their final momentum immediately after the collision is 51 Kgm/s and their direction immediately after the collision will be in the direction of the second skateboarder.
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Answer:
-51
Explanation:
Khan Academy
Einstein's theory of general relativity is currently the best explanation of
gravity. Why has this theory not been replaced with a new one?
O A. Scientists assume it is correct and therefore no longer perform
experiments on gravity.
O B. Because of Einstein's fame, it remains popular among scientists.
O C. The force of gravity has been shown to remain constant over time,
O D. It still explains the experimental evidence pertaining to gravity.
SUBMIT
Answers
Answer:
d
Explanation:
im pretty sure. just makes the best sense. If im wrong im very sorry.
Answer:
D
Explanation:
because its right
1. What is the velocity if the displacement is 50 m and the time interval is 10 s?
Answers
Answer:
Velocity=5m/s
Explanation:
V=?
S=50m
t=10s
V=S/t
V=50/10
V=5m/s
A uniform metre rod of 5 metre length is suspended horizontally by two strings P and Q.Pis attached 0.8 metre from one end and Q is attached 2 metre from the other end.Given that the weight of the rod is 110N. Calculate the tension in each string
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Answer:
The tension in string P is 25 N, while that of Q is 85 N.
Explanation:
Considering the conditions for equilibrium,
i. Total upward force = Total downward force
\(T_{P}\) + \(T_{Q}\) = 110 N
ii. Taking moment about P,
clockwise moment = anticlockwise moment
110 × (2.5 - 0.8) = \(T_{Q}\) × (3 - 0.8)
110 × 1.7 = \(T_{Q}\) × 2.2
187 = 2.2\(T_{Q}\)
\(T_{Q}\) = \(\frac{187}{2.2}\)
\(T_{Q}\) = 85 N
From the first condition,
\(T_{P}\) + \(T_{Q}\) = 110 N
\(T_{P}\) + 85 N = 110 N
\(T_{P}\) = 110 - 85
\(T_{P}\) 25 N
Therefore, the tension in string P is 25 N while that of Q is 85 N.
Which applications, either for diagnostic purposes or for therapeutic purposes, do not involve ionizing radiation? Check all that apply.
Answers
Answer: I do not know (is this an RP question? ;-;)
Explanation:
Answer:
Applications in which ionizing radiation are not used are
MRI
ultrasound
laser surgery
Explanation:
hope its right
bestfriend
In the photo below, astronaut Alan Bean works at the Apollo 12 lander. Describe the horizon and the surface you see. What kind of terrain did they land on for this, the second human Moon landing, and why ?
Answers
Answer:
moon
Explanation:
I dont KNow
A massless string is wrapped around a cylinder of mass 0.400 kg
and radius 0.100 m. The string is attached to the ceiling. The
cylinder is released. As it falls, the string unwinds. What is the
magnitude of the acceleration of the cylinder as it falls in m/s²?
A. 6.54 m/s²
B. 4.71 m/s²
C. 3.22 m/s²
D. 2.19 m/s²
Answers
The answer is B. 4.71 m/s²
Step by step explanation:
To find the magnitude of the acceleration of the falling cylinder, we can consider the forces acting on it.
As the cylinder falls, two forces are acting on it: the gravitational force (mg) pulling it downward and the tension force (T) in the string pulling it upward.
Since the cylinder is massless, we can neglect its mass in calculations.
The tension force (T) in the string is related to the angular acceleration (α) of the cylinder as it unwinds. The tension force can be expressed as T = Iα, where I is the moment of inertia of the cylinder.
For a solid cylinder rotating about its axis, the moment of inertia is given by I = 0.5mr², where m is the mass of the cylinder and r is its radius.
The gravitational force (mg) is equal to the weight of the cylinder, which is given by mg = 0.400 kg * 9.8 m/s² = 3.92 N.
The tension force (T) and gravitational force (mg) are in opposite directions, so we can write the net force equation as T - mg = m * a, where a is the acceleration of the falling cylinder.
Substituting the expressions for T and mg, we have 0.5mr²α - mg = m * a.
Since α = a/r (for a solid cylinder rolling without slipping), we can rewrite the equation as 0.5maα - mg = m * a.
Simplifying the equation, we have 0.5aα - g = a.
Rearranging the equation, we get a * (0.5α - 1) = g.
Finally, solving for a, we have a = g / (0.5α - 1).
Given the radius r = 0.100 m, we can calculate α using α = a/r.
Let's substitute the values and calculate the acceleration:
α = a/r = (9.8 m/s²) / (0.5 * (9.8 m/s² / (0.100 m))) = 19.6 rad/s².
Substituting α into the equation for a, we have a = (9.8 m/s²) / (0.5 * 19.6 rad/s² - 1) ≈ 4.71 m/s².
Therefore, the magnitude of the acceleration of the falling cylinder is approximately 4.71 m/s².
The correct answer is B. 4.71 m/s².