The current through a 10Ω resistor is 0.025A. What is the voltage drop across the resistor?
Answers
The voltage drop across the resistor is 0.25 volts.
Ohm's Law, named after the German physicist Georg Simon Ohm, relates the current flowing through a conductor to the voltage applied across it and the resistance of the conductor. To calculate the voltage drop across a resistor, we can use Ohm's Law,
Given a current of 0.025A and a resistance of 10Ω:
V = I * R
where V represents voltage, I represents current, and R represents resistance.
We are given a current of 0.025A (amperes) and a resistance of 10Ω (ohms). To determine the voltage drop across the resistor, we simply multiply the current by the resistance:
V = 0.025A * 10Ω
V = 0.25V
Therefore, 0.25 volts is the voltage drop across the resistor. When an electric current passes through a resistor, the resistance impedes the flow of electrons, resulting in a voltage drop across the resistor. The voltage drop signifies the energy consumed or dissipated by the resistor as the current traverses it.
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Related Questions
You push on a couch with a force of 200
N. The couch and floor have a coefficient
of static friction of 0.6, and there is a
normal force of 700 N. What is the
maximum static friction between the
couch and floor?
Answers
Answer: 420 N
Explanation:
coefficient of static friction * normal force=maximum static friction force
0.6 * 700N=maximum static friction force
6/10 * 700N=
700*6/10=
4200/10=420 N
A question is scientific if you can answer it using which of the following?
O A. A survey of other scientists
O B. Thoughts and feelings
C. Observations and measurements
D. A survey of nonscientists
Answers
A question is scientific if you can answer it using observations and measurements and is therefore denoted as option C.
What is a Scientific question?This type of question leads to the formation of hypothesis in which careful observation is needed to answer it.
The observation may include different forms of measurements to ascertain it authenticity in this scenario.
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In the circuit given below all the resistors R1, R2, R3, R4 have the resistance of 1Ω connected to a battery of 5V. Determine the equivalent resistance and the current flowing in the circuit.
Please answer quickly. It's urgent.
Answers
Answer: Answer for current is 6.667 A and resistance is 0.75 ohm
Explanation:
R1 R2 and R3 are in series because you can see its bent and joint.
So that whole branch is 3 ohm.
3 ohm parallel to 1 ohm is 0.75 ohm
Then by Ohm's Law
I= V/R= 5/0.75
= 6.667 A
please mark my answer the brainliest
You could have asked me on Instagram da
Answer:
Current is 6.667 A and resistance is 0.75 ohm
Explanation:
A beam of light hits a mirror at an angel of 35 degrees. What is the angel that it bounces off at?
a. 55 degrees
b. 35 degrees
c. 90 degrees
Answers
Answer:
c
Explanation:
light refraction is a right angle
Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below. Overlapping red and blue balls in the center with a circular fuzzy green cloud outside them. What experimental evidence led to the development of this atomic model from the one before it? A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil. Experiments with water vapor showed that elements combine in specific proportions. Equations were used to identify regions around the nucleus where electrons would likely be. Cathode rays were bent in the same way whenever a magnet was brought near them.
Answers
Answer: C. Equations were used to identify regions around the nucleus where electrons would likely be.
Equations were used to identify regions around the nucleus where electrons would likely be. This leads to the development of this atomic model from the one before it.
What is atomic model?The scientific idea that matter is made up of tiny units called atoms is known as the "atomic theory." The history of atomic theory can be traced back to an antiquated philosophical movement known as atomism.
According to this theory, if a lump of stuff were divided into ever-tinier fragments, the pieces would eventually reach a size where they could no longer be divided any smaller. These fictitious final particles of nature were known to ancient Greek philosophers as atomos, which is Greek for "uncut."
Scientist John Dalton first observed that chemical substances appeared to combine and decompose into other substances in weight proportions that suggested that each chemical element is ultimately composed of minute, indivisible particles of constant weight in the early 1800s.
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From laboratory measurements, we know that a particular spectral line formed by hydrogen appears at a wavelength of 121.6 nanometers (nm). The spectrum of a particular star shows the same hydrogen line appearing at a wavelength of 121.8 nm. What can we conclude
Answers
The hydrogen spectral line from the star is redshifted compared to the laboratory measurement.
1. In the laboratory, the hydrogen spectral line appears at 121.6 nm.
2. The star's spectrum shows the same hydrogen line at 121.8 nm, which is slightly longer in wavelength.
3. A longer wavelength indicates that the light is redshifted.
4. Redshift occurs when an object is moving away from the observer, causing the light waves to stretch.
5. Therefore, we can conclude that the star is moving away from us.
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An electric current of 0.05 A passes through a circuit that has a resistance of
15 2. According to Ohm's law, what is the voltage of the circuit?
A. 15.1 V
B. 300 V
C. 0.003 V
D. 0.75 V
Answers
The voltage of the circuit will be 0.75 V.The potential difference between the circuit is known as the voltage.
What is ohm’s law?Ohm's law claims that the voltage across a conductor is directly proportional to the current flowing through it.
This current-voltage connection may be expressed mathematically as,
The Equation of Ohm's Law
\(\rm V=IR \\\\ V= 0.05 \times 15.2 \\\\\ \rm V=0.75 \ V\)
The voltage of the circuit will be 0.75 V.
Hence option D is correct.
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please answer my question :)
Answers
Answer:
Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.
The temperature of the water at the bottom of a waterfall is greater than the temperature of the
water at the top.
The gravitational potential energy of the water at the top is transferred to thermal energy at the
bottom.
The specific heat capacity of water is 4200 J/(kg °C).
What is the temperature difference for a waterfall of height 21 m?
A 0.005 °C
B 0.05°C
C 20°C
D 200°C
The answer is B (0.05C), but how?
Can someone explain?
Answers
The temperature difference for a waterfall of height 21 m is 0.05 °C. The correct option is B.
The temperature difference for a waterfall can be calculated using the principle of conservation of energy. When water falls from a height, its potential energy is converted into kinetic energy and then into thermal energy due to the friction and turbulence created by the waterfall.
The potential energy of an object is given by the equation: PE = mgh, where m is the mass, g is the acceleration due to gravity (approximately 9.8 m/s^2), and h is the height.
In this case, we can assume that the mass of the water remains constant throughout the fall. The change in potential energy is then equal to the change in thermal energy.
ΔPE = Δthermal energy
mgh = mcΔT
Here, c is the specific heat capacity of water (4200 J/(kg °C)) and ΔT is the change in temperature.
We can rearrange the equation to solve for ΔT:
ΔT = gh/c
Given:
h = 21 m
g = 9.8 m/s^2
c = 4200 J/(kg °C)
Plugging in the values:
ΔT = (9.8 m/s^2) * (21 m) / (4200 J/(kg °C))
ΔT = 0.05 °C
Therefore, the temperature difference for a waterfall of height 21 m is 0.05 °C. The answer is option B.
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restriction of gas flow through the iab may be caused by:
Answers
Restriction of gas flow through the IAB (Intra-Aortic Balloon) may be caused by several factors: Blockage or occlusion, Kinking or bending of the catheter, Malpositioning of the catheter tip and many more.
Blockage or occlusion: The IAB catheter may become blocked or occluded, preventing the free flow of gas. This can occur due to the formation of blood clots, debris, or other obstructions within the catheter. Blockage can compromise the effectiveness of the IAB in providing circulatory support.
Kinking or bending of the catheter: The IAB catheter is a flexible tube that is inserted into the aorta. If the catheter gets kinked or bent, it can restrict the flow of gas. This can happen during insertion or due to patient movement. Kinking or bending of the catheter can impair the inflation and deflation of the balloon, affecting its therapeutic function.
Malpositioning of the catheter tip: The catheter tip of the IAB needs to be positioned correctly within the aorta for optimal gas flow. If the catheter tip is not properly placed, it can result in inadequate gas delivery or uneven inflation and deflation of the balloon. Malpositioning can occur during insertion or due to catheter migration within the blood vessels.
Catheter malfunction: The IAB catheter itself may experience mechanical or technical issues that restrict gas flow. This can include problems with the catheter balloon, such as leaks or defects, which can impair its inflation and deflation capabilities. Catheter malfunction can compromise the intended hemodynamic support provided by the IAB.
It is important for healthcare professionals to monitor the gas flow through the IAB and promptly address any restrictions or complications that may arise. Regular assessment, proper placement, and careful handling of the catheter can help minimize the risk of flow restriction and ensure the effective functioning of the IAB.
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30 points must be a legitimate answer and correct answer or I will report
A wave travels at a constant speed. How does the frequency change if the wavelength is reduced by a factor of 3?
A. The frequency increases by a factor of 9.
B. The frequency increases by a factor of 3.
C. The frequency decreases by a factor of 3.
D. The frequency does not change.
Answers
Answer:
it's C
Explanation:
have a nice day............
in which parts of a plant would u expect phototropism to occur?
Answers
Answer:
chloroplasts
Explanation:
Most plant shoots exhibit positive phototropism, and rearrange their chloroplasts in the leaves to maximize photosynthetic energy and promote growth.
An car battery sends an electrical current one direction through a circuit in the car. Based on this, what type of current is a car battery a source of?
A.
direct current
B.
alternating current
C.
interval current
D.
digital current
Answers
Answer:
A
Explanation:
the current passed in car is fixed and responsible for electric devices in car moves in one direction only but there are some cars has alternating cars to make induced current in its coils allowing it to move without fuel(as exception)
A mass (m) attached to a spring that obeys Hooke's law (k) vibrates with its natural period T and amplitude A.The amplitude is doubled. What happens to the frequency
Answers
When a mass (m) attached to a spring that obeys Hooke's law (k) vibrates with its natural period T and amplitude A, and the amplitude is doubled, the frequency of the vibration remains the same.
explanation:
Let’s examine this statement further: A mass attached to a spring that obeys Hooke’s law vibrates with its natural period T and amplitude A. The natural period is independent of the amplitude of the motion and is determined only by the mass and spring constant.
The frequency of the vibration is related to the natural period, T, by the following equation:
f=1/T
Therefore, since the natural period, T, is independent of the amplitude, the frequency of vibration is also independent of the amplitude. This means that if the amplitude of the motion is doubled, the frequency of the vibration will not change.
It is essential to understand that the frequency of the vibration depends on the mass and spring constant of the system and not on the amplitude of the motion.
This relationship is defined by Hooke’s law, which states that the force exerted by a spring is proportional to the displacement from its equilibrium position.
The proportionality constant, k, is known as the spring constant. Hooke’s law can be expressed as follows:
F = -kx
where F is the force exerted by the spring, x is the displacement from the equilibrium position, and k is the spring constant. This law shows that the force exerted by the spring is always directed towards the equilibrium position, and its magnitude is proportional to the displacement from that position.
The minus sign indicates that the force is in the opposite direction to the displacement. The natural frequency of vibration is determined by the mass of the object and the spring constant of the spring. The greater the mass, the lower the natural frequency of vibration, and the smaller the spring constant, the lower the natural frequency of vibration.
Therefore, if the mass of the object or the spring constant changes, the natural frequency of vibration will also change. In conclusion, when a mass attached to a spring that obeys Hooke’s law vibrates with its natural period T and amplitude A, and the amplitude is doubled, the frequency of the vibration remains the same.
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Your supervisors at A&L Engineering have tasked you with evaluating the durability of three common materials used in the design of cell phone cases
Answers
A&L Engineering, as an engineer, you've been tasked with evaluating the durability of three common materials used in the design of cell phone cases.
These materials include:Carbon FiberPolycarbonateTPUExplanation:Carbon fiber is a lightweight, durable, and corrosion-resistant composite material. It is often used in the aerospace, automotive, and sporting goods industries.Polycarbonate is a thermoplastic polymer that is strong, shatter-resistant, and lightweight. It is often used in the production of CDs, DVDs, and eyeglass lenses.
TPU (thermoplastic polyurethane) is a flexible, soft material that is abrasion-resistant and provides excellent impact protection. It is often used in the production of phone cases, as well as sporting equipment and medical devices.To evaluate the durability of these materials, you can conduct a series of tests to measure their resistance to impacts, scratches, and bending.
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what are the fundamental units used in physics?
Answers
Answer:
Metre, kilogram, second, ampere, kelvin, candela, and mole
Explanation:
A base unit (also referred to as a fundamental unit) is a unit adopted for measurement of a base quantity
Lichens are not single organisms, but algae and fungi that function together. The algae use photosynthesis to make food for both organisms. The fungi produce digestive chemicals and absorb nutrients for both organisms.
How does the biological activity of lichens cause weathering in rocks?
Answer options with 4 options
A.
Lichens cause friction as they grow, which weathers the rocks.
B.
Lichens produce chemicals, which dissolve and weather the rocks.
C.
Lichens take in water, which freezes in cracks and weathers the rocks.
D.
Lichens absorb heat during photosynthesis, which weathers the rocks.
Answer please
Answers
Answer:
The correct answer is B
Lichens produce chemicals which dissolve and weather the rocks.
How is kinetic energy used in dribbling a basketball
Answers
Hope this helps
astronauts on our moon must function with an acceleration due to gravity of 0.165g .if an astronaut can throw a certain wrench 15.0 m vertically upward on earth, how high could he throw it on our moon if he gives it the same starting speed in both places?
Answers
The wrench can be thrown to a height of approximately 90.91 meters on the Moon if it is given the same starting speed as on Earth.
To determine the height to which the wrench can be thrown on the moon, given the same starting speed as on Earth, we can use the concept of gravitational potential energy.
On Earth:
Let's assume the starting speed on Earth is denoted as v and the height to which the wrench is thrown is h.
Using the principle of conservation of energy, the initial kinetic energy (KE) will be converted into gravitational potential energy (PE) at the highest point of the trajectory.
On Earth, the wrench is thrown vertically upward against the acceleration due to gravity of 9.8 m/s². Therefore, at the highest point, the final velocity (vfinal) will be zero.
Using the equation: KEinitial = PEhighest,
(1/2)mv² = mgh,
Where m is the mass of the wrench (which cancels out in the equation), v is the initial speed, g is the acceleration due to gravity, and h is the height.
We can solve this equation for h:
h = (v²) / (2g)
On the Moon:
On the Moon, the acceleration due to gravity is 0.165 times that on Earth. So, the acceleration due to gravity on the Moon, gmoon, is given by:
gmoon = 0.165 * 9.8 m/s².
Since the initial speed (v) is the same on both Earth and the Moon, we can use the equation for height (h) on the Moon, using gmoon:
hmoon = (v²) / (2gmoon).
Comparing the two equations for height on Earth and the Moon:
h = (v²) / (2g),
hmoon = (v²) / (2gmoon).
Since the initial speed (v) is the same in both cases, we can see that the height on the Moon (hmoon) will be inversely proportional to the acceleration due to gravity on the Moon (gmoon) compared to Earth's gravity (g)
So, the height to which the wrench can be thrown on the Moon is given by:
hmoon = h / (gmoon / g)
Substituting the values:
g = 9.8 m/s² (acceleration due to gravity on Earth)
gmoon = 0.165 * 9.8 m/s² (acceleration due to gravity on the Moon)
hmoon = h / (gmoon / g)
hmoon = 15.0 m / (0.165 * 9.8 m/s² / 9.8 m/s²)
hmoon = 15.0 m / 0.165
hmoon = 90.91 m.
Therefore, the wrench can be thrown to a height of approximately 90.91 meters on the Moon if it is given the same starting speed as on Earth.
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in parallel rlc circuits, the ? is the same and is ? phase across all branches and is used as the main reference for calculations.
Answers
In parallel RLC circuits, the voltage is the same and is in-phase across all branches and is used as the main reference for calculations.
In a parallel RLC circuit, the current is determined by the resistance, inductance, and capacitance. The maximum current and the maximum voltage occur simultaneously because the voltage and current through the resistor are in phase. This is so that there is no phase shift between the voltage and the current caused by the resistance.
On the other hand, the voltage is 90 degrees behind the current passing through the capacitor, and the voltage is 90 degrees ahead of the current going through the inductor. As a result, the resistive current and voltage are in phase, which means that when the voltage is at its highest, the resistive current likewise reaches its peak and vice versa.
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What determines the amount of thermal energy of an object?
Answers
If the force to stretch a spring is given as k = (100N/m), then what is the potential energy of the spring if it is stretched 1 meters from rest?
Answers
Answer:
50 Joules
Explanation:
Which one of the following vector pairs is equal in magnitude and opposite in direction?Vectors
explained image
a)one short and one long arrow going towards each other
b)one short and one long arrow going right in the same direction
c)two of the same size arrows going right in the same direction
d)two of the same size arrows going in towards eachother
Select one:
a. A
b. B
c. C
d. D
Answers
Answer
(D) the vectors must be the same size and pointing opposite to each other
Sound waves are emitted in all directions from a point source at 72.0 w. what is the intensity received by a listener 195.0 m away from the source?
Answers
The intensity of the sound wave received by the listener 195.0 meters away from the point source is approximately 0.000477 W/m².
The inverse square law for sound intensity can be used to calculate the intensity heard by a listener at a distance of 195.0 m from a point source that is producing sound waves with a power of 72.0 W. According to the inverse square law, the power of a sound wave decreases proportionally to the square of its distance from the source.
The formula for the inverse square law is:
I = P / (4πr²)
Where:
I is the intensity of the sound wave,
P is the power of the source, and
r is the distance from the source.
When we put the values, we get:
I = 72.0 / (4π(195.0)²)
I ≈ 72.0 / (4π(38025))
I ≈ 72.0 / (150796.447)
I ≈ 0.000477 W/m²
Hence, the intensity of the sound wave received by the listener 195.0 meters away from the point source is approximately 0.000477 W/m².
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A rocket weighing 300,000 N is taking off from Earth with a total thrust of
460,000 N at an angle of 20 degrees, as shown in the image below. What is
the approximate vertical component of the net force that is moving the rocket
away from Earth?
Answers
Explanation:
vertical force = 460,000 * sin(70) - 300,000
Fv = 187,717.75N
A 1.2 x 10^kg car is accelerating at 1.6m/s^2. If the coefficient of friction is 0.15, what is the force supplied by the engine?
Answers
Answer:
1176 N
Explanation:
We are given that
Mass of car=m1=1280 kg
Mass of trailer=m2=350 kg
Car exerts a horizontal force against the ground =3.6x103N
Coefficient of friction=0.15
We have to find the force exerted by car on the trailer.
F={m1+m2)a+Ff
F={m1+m2)a+m2g
g=9.8m/s2
Substitute the values then we get
3.6x103=(1280+350a=0.15x350x9.8
3.6x103=1630a+514.5
1630a=3600-514.5=3085.5
a=3085.5/1630=1.89m/s2
Force exert on the trailer
F=m2a+m2g
F=350(1.98)=0.15x350x9.8
F=1176N
Hence, the car exerts force on the trailer=1176 N
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What is a lever?....
Answers
Answer:
A lever is a simple machine in the subject "S.T.E.M"
Explanation:
Levers use the following forces in order to be used: push or pull.
examples are crow bars,shovels, brooms and ect.
A convex mirror of radius of curvature 1.6 m has an object placed at a distance of 1.0 m from it. Find the position of image and the magnification.
Answers
Answer:
The image is formed at 0.44 m in front of the mirror
magnification (M) = 0.44
Explanation:
Applying, mirror formular
1/f = (1/u)+(1/v).................... Equation 1
Where f = Focal length of the convex mirror, u = object distance, v = image distance.
Using the real is positive convection,
From the question,
Given: f = -1.6/2 = -0.8 m( The focal length of a convex mirror is vitual), u = 1.0 m
Substitute these values into equation 1
-1/0.8 = (1/v)+(1/1)
Solve for v
1/v = 1.25+1
1/v = 2.25
v = 1/2.25
v = 0.44 m
Hence the image is formed at 0.44 m in front of the mirror
Magnification (M) = v/u
m = 0.44/1
m = 0.44
i’m not sure if it’s A or B
Answers
Two sources of light of wavelength 700 nm are 12 m away from a pinhole of diameter 0.7 mm. How far apart must the sources be for their diffraction patterns to be resolved by Rayleigh's criterion
Answers
The sources must be 0.042 meters (42 mm) apart for their diffraction patterns to be resolved by Rayleigh's criterion.
To find the distance between the sources, we can use Rayleigh's criterion formula:
θ = 1.22 * (λ / D)
where θ is the angular separation, λ is the wavelength, and D is the diameter of the pinhole. First, calculate the angular separation:
θ = 1.22 * (700 nm / 0.7 mm) = 1.22 * (700 * 10^(-9) m / 0.7 * 10^(-3) m) ≈ 1.22 * 0.001 = 0.00122 radians
Next, we can use the formula for angular separation to find the distance between the sources:
distance = θ * L
where L is the distance from the pinhole to the sources (12 m in this case). So,
distance = 0.00122 radians * 12 m ≈ 0.042 meters (42 mm)
Summary: For the two sources of light with a wavelength of 700 nm and 12 m away from a pinhole of diameter 0.7 mm, they must be 0.042 meters (42 mm) apart for their diffraction patterns to be resolved by Rayleigh's criterion.
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