Una carga eléctrica de 120 Coulomb pasa uniformemente por la sección transversal de un hilo conductor durante un minuto. La intensidad de la corriente eléctrica que circula en ese conductor es
Answers
Answer:
I = 2 A
Explanation:
Electric current is defined as the amount of face per unit of time
I = Q / t
where Q is the charge and t is the time
let's reduce the time to the SI system
t = 1 min (60s / 1 min) = 60 s
let's calculate
I = 120/60
I = 2 A
Related Questions
Which complication of head and neck cancer would require the nurse to apply firm pressure?
Answers
The complication of head and neck cancer that would require the nurse to apply firm pressure is bleeding.
Bleeding can occur as a result of invasive procedures or surgery for head and neck cancer. The nurse may need to apply firm pressure to the affected area to control the bleeding and prevent further complications.
Applying firm pressure can help to compress blood vessels and promote clotting, which can be crucial in stopping the bleeding. The nurse may use sterile gauze or a clean cloth to apply the pressure directly to the bleeding site.
In conclusion, if a patient with head and neck cancer experiences bleeding, the nurse may need to apply firm pressure to control the bleeding and prevent complications.
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How to determine the output power (in watts) of a voltage rail
Answers
Answer:
.
Explanation:
To determine the output power (in watts) of a voltage rail, you need to know both the voltage and the current flowing through the rail. The formula for power (in watts) is P = V x I, where P is power, V is voltage, and I is current. So, if you know the voltage and current of the voltage rail, you can multiply them together to get the output power. Keep in mind that power is measured in watts, voltage is measured in volts, and current is measured in amperes.
To determine the output power (in watts) of a voltage rail, you'll need to know the voltage across the rail (in volts) and the current flowing through it (in amperes). You can use the following formula:
Power (in watts) = Voltage (in volts) × Current (in amperes)
Step 1: Measure the voltage across the rail using a voltmeter.
Step 2: Measure the current flowing through the rail using an ammeter.
Step 3: Multiply the measured voltage and current values to calculate the output power in watts.
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How do some plants defend themselves against predators?
Plants transpire and produce excess water to keep predators away.
Plants grow roots deeper into the ground, making them harder to remove.
Plants can have thorns on their stems or poison on their leaves.
Smaller plants bend and grow toward taller plants and trees.
Answers
As a defence against predators, plants can have thorns on their stems or poison on their foliage.
How do certain plants protect themselves from scavengers?For many plants, physical defences serve as their first line of defence. Herbivores find it challenging to consume vegetation because of these defences. Physical barriers include things like the thorns on flowers and the spikes on trees like hawthorn. These bodily barriers prevent herbivores from consuming the stalks or leaves of plants by injuring them.
What do plants use to protect themselves from?The first line of defence against pathogens is the outer covering of a plant, which is comparable to our skin and is also referred to as the epidermis. On some plant sections, such as the bark of a tree or the waxy cuticle on leaves, extra layers protect the epidermis itself.
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A
heat engine is measured to have 30% efficiency. Is the theoretical
efficiency going to be greater or less than that? Why?
Answers
The theoretical efficiency is greater than that of the actual efficiency of the engine. This is because heat engine always produces some waste heat.
The Second Law of Thermodynamics states that a heat engine cannot be 100% efficient. In practice, a heat engine is only 100% efficient when it is operating at about 30-50% efficiency.
If we were to multiply this by 100, we would get the efficiency as a percent: 49%. This is the theoretical maximum efficiency. If we were to actually build an engine, it would be less efficient than the theoretical engine. The theoretical engine that can achieve this theoretical maximum efficiency is called the Carnot Engine.
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Sally accelerates a 250 kg cart at 3 m/s/s. What must be the net force?
Answers
A 25kg bike has 10250J of kinetic energy, how fast is it going?
Answers
Answer:
28.63 m/s
Explanation:
Convert 50,000 ML to mL
1. 5 x 10^5 mL
2. 5 x 10^-5 mL
3. 5 x 10^13 mL
4. 5 x 10^-13 mL
Answers
The answer is 1!
The answer is 1!
The relationship between the length of a spring and the force required to stretch the spring is shown below.
graph is #2 in word doc
What is the work done when the spring length is increased from 20 cm to 30 cm?
A.25 J
B.35 J
C.250 J
D.350 J
Answers
Answer:
The answer is down below
Explanation:
1)
\(f \alpha e\)
\(f = ke\)
where e is the extension
and k is the elastic constant
2)e=30-20=10cm
W=1/2Fe or 1/2ke²
Problem 08.058-RC op amp circuit with stepped voltage, find voltage expression with time constant If 4-8, obtain an expression for the voltage vy as labeled in the op amp circuit. www 5012 The expression of vis 8 mF www e-TV, where Tis ms.
Answers
The voltage expression for vy in the given RC op amp circuit with a stepped voltage can be obtained by considering the time constant. If the time constant is 4-8, and the expression for the voltage across the resistor R is 8 mF, where T is in ms, the expression for vy can be derived.
In the given RC op amp circuit, the voltage across the resistor R is given by the expression vy = vis * (1 - e^(-t/RC)), where vis is the input voltage, t is the time, R is the resistance, and C is the capacitance.
Given that the time constant is 4-8, we can assume that the product of R and C is equal to this time constant. Let's assume RC = τ, where τ lies between 4 and 8.
Substituting RC = τ and the given expression for vis as 8 mF (where T is in ms), we can write the voltage expression as vy = 8 * (1 - e^(-t/τ)).
This expression represents the voltage across the resistor R, labeled as vy in the op amp circuit, as a function of time and the time constant τ.
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You drive a bumper car into another bumper car whose driver has a much larger body mass than you do. Who experiences more of a jolt, you or the other driver?
Answers
Answer:
both drivers experience the same force. just with different "results"
Explanation:
Answer:
You do
Explanation:
Momentum is mass*velocity. So Newton's 3rd law equal and opposite reaction. Because you weigh less you will have more force act on you than the driver who weighs more.
Describe the advantages and disadvantage is of living in a floodplain
Answers
Answer:
:) :::::::::::::::::::::::::::::::))))
The engine of the car develops a driving force of 4000N. Air resistance also acts on the car, with a force of R. If the car has a mass of 1000kg, and is accelerating at 1.5m/s^2, calculate the magnitude of R.
Answers
Answer:
R = -2500N
Explanation:
Use formula ΣF = Ma. We can split the Net Force into two parts: Fe - Ff = Ma.
Fe is the force developed by the engine: 4000N
Ff (R) is the air resistance projected on the vehicle. This is the value we're looking for.
Mass: 1000kg
Acceleration: 1.5m/s^2
Next, just plug in the values and solve.
▪4000N - Ff = (1000kg)(1.5m/s^2)
▪Ff = 1500N - 4000N
▪Ff = -2500N
R = -2500N.
The air resistance acting on the car is R = -2500N.
if the electrical load remains the same at 120 volts, what is the electrical current when the resistance is:
Answers
As a result, doubling the voltage doubles the current if the resistance is maintained. In contrast, doubling resistance reduces current if the voltage is constant
If voltage stays the same while resistance increases, what happens to current?The current will drop, on the other hand, if the resistance in a circuit is raised while the voltage remains constant.
As a result, doubling the voltage doubles the current if the resistance is maintained. In contrast, doubling resistance reduces current if the voltage is constant.
Voltage, current, and resistance all have a relationship that is indicated by Ohm's Law. The formula V = IR is something you should be aware of. By dividing the voltage by the resistance, or I = V/R, you may quickly determine the current value from the equation.
V = IR = 120*120 = 14,400.
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Write a program named assignment3.sh to build a tree structure and perform different
functions as stated in the provided code. READ THE COMMENTS IN THE CODE BELOW AND COMPLETE THE FUNCTIONS
#!/bin/bash
# A function to build the structure
function buildStructure()
{
echo "Building the structure"
}
# A function to create five directories for five users in the Users directory
function createUserDirectories()
{
echo "Creating user directories"
# User directories are named as User1, User2, User3, User4, User5
}
# A function to create 20 files in the Files directory
function createFileDirectories()
{
echo "Creating files ....."
# Files must be of types txt, jpg, gz, iso, log, exe only
# The text files MUST NOT be empty (i.e. they must contain some randome texts)
# The file types MUST be passed as an argument to this function
# To generate a random number, use the command $RANDOM
# To generate a random number between two numbers, use the command $(( RANDOM % (max - min) + min ))
}
# A function to send messages to the users
function sendMessage()
{
echo "Sending messages to users"
# A message indicating the sending of special files to special users displayed in the terminal windows of those users
# The txt files in the Files directory are sent to user1 in the Users directory
# The jpg files in the Files directory are sent to user2 in the Users directory
# The gz files in the Files directory are sent to user3 in the Users directory
# The iso files in the Files directory are sent to user4 in the Users directory
# The log files in the Files directory are sent to user5 in the Users directory
}
# A function to clean up all the exe files in the Files directory
function cleanUp()
{
echo "Cleaning up files"
}
# A function to display the contents of the structure
function displayStructure()
{
echo "Displaying the structure"
Answers
The main answer is a program named "assignment3.sh" that builds a tree structure and performs various functions as stated in the code.
What are the different functions performed by the "assignment3.sh" program?The program "assignment3.sh" is designed to build a tree structure and execute several functions as described in the provided code. It consists of several functions, each serving a specific purpose.
The first function, "build Structure," is responsible for building the structure. Although the code does not provide specific details on how the structure is built, this function can be customized to create the desired directory hierarchy or file system.
The second function, "createUserDirectories," creates five user directories within the "Users" directory. These directories are named "User1," "User2," "User3," "User4," and "User5," as stated in the code.
The third function, "createFileDirectories," generates 20 files in the "Files" directory. These files are of various types, including txt, jpg, gz, iso, log, and exe. The text files are populated with random text, ensuring they are not empty. The specific file types are passed as arguments to this function.
The "send Message" function sends messages to the users. Each user receives a specific type of file from the "Files" directory. For example, user1 receives txt files, user2 receives jpg files, user3 receives gz files, user4 receives iso files, and user5 receives log files. The messages are displayed in the respective user's terminal window.
The "clean Up" function is responsible for removing all the exe files present in the "Files" directory, effectively performing a cleanup operation.
Finally, the "display Structure" function displays the contents of the structure, providing an overview of the created directories and files.
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Transistors are 3-terminal semiconductor devices which can act as switches or
amplifiers. An NP-transistor can be switched "ON" by:
A. Applying large negative potential to the collector and small positive potential to
the base
(B. Applying small positive potential to the collector and large positive potential to
the base.
(C. Applying small positive potential to the emitter and large negative potential to
the base. D. Applying small negative potential to the emitter and large negative potential to
the base.
Answers
In an NP-transistor (NPN transistor), the base is typically made of p-type semiconductor material, while the emitter and collector are made of n-type semiconductor material.
To switch the transistor "ON" and allow current to flow through it, the base-emitter junction needs to be forward-biased. This means that the base terminal should have a higher positive potential than the emitter terminal.
By applying a small positive potential to the base (relative to the emitter) and a large NP-transistor to the collector, the base-emitter junction is forward-biased, allowing current to flow through the transistor and switching it "ON".The correct answer is (A) Applying large negative potential to the collector and small positive potential to the base.
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when a satellite travels at constant speed, its shape is a(n) _______.
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A satellite travels at a constant speed, its shape is a circle.
An integrated receiver and transmitter of radio signals known as a transponder, a satellite is essentially a self-contained communications system that can receive signals from Earth and retransmit those signals back to Earth.
The three primary parts of a satellite are the propulsion system, which includes the rockets that move the satellite, the power system, which includes the solar panels that supply power, and the communications system, which includes the antennae and transponders that receive and retransmit signals. To enter into the proper orbit and periodically adjust its position, a satellite needs a propulsion system of its own.
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A 200-N scaffold is held up by a wire at each end. The scaffold is 18 m long. A 650-N box sits 3.0 m from the left end. What is the tension in each wire
Answers
The tension on the left wire 642N and the tension on right wire is 208N
Given that the force of scaffold is 200- N and the length of the scaffold is 18m
We need to find the tension in each wire
Tension Force is the force that is transmitted through a cable, rope, wire or string when it is pulled tight by forces acting from opposite ends
Here
∑ \(T_b=0\)
∴ \(W_B(15m)+W_S(9m)-T_L(18m) = 0\)
∴ \(T_L = \frac{W_B(15m)+W_S (9m)}{18m}\\ T_L = \frac{650(15)+200(9)}{18}\\ T_L = 642 N\)
Hence the tension on the left side is 642N
∑\(T_a\) = 0
\(T_R(18m)-W_B(3m)-W_S(9m)=0\)
∴\(T_R =\frac{W_B(3m)+W_S(9m)}{18m}\)
∴\(T_R = \frac{650(3)+200(+9)}{18}\\\)
∴\(T_R = 208N\)
Hence the tension on the right side is 208N
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. during the design phase of one of its model spacecraft, spacez launches the atlas 31415 rocket vertically. a camera is positioned 5000 ft from the launch pad. when the rocket is 12,000 feet above the launch pad, its velocity is 800 ft/sec. find the
Answers
To find the required information, we need to determine the rocket's acceleration during its ascent phase.
What is the acceleration of the rocket during its ascent phase?We can use the kinematic equation that relates velocity, initial velocity, acceleration, and displacement to solve for the acceleration of the rocket.
Given that the rocket's initial velocity is 0 ft/sec (since it starts from rest at the launch pad) and the displacement is 12,000 ft, we can plug in these values along with the given velocity of 800 ft/sec into the kinematic equation.
Rearranging the equation, we can solve for the acceleration.
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if we compare light photons and energetic electrons which have constant velocity independent of energy
Answers
Light photons always travel at a constant speed (the speed of light) regardless of their energy, while the velocity of electrons is not constant and can vary with their energy.
Light photons and energetic electrons do not have constant velocities independent of energy. Light photons, which are particles of electromagnetic radiation, travel at a constant speed in a vacuum, which is approximately 299,792 kilometers per second (or about 186,282 miles per second) in a vacuum, denoted as the speed of light (c). This speed is a fundamental constant of nature and remains constant regardless of the energy of the photons. In other words, all photons, regardless of their energy, travel at the same speed in a vacuum.
On the other hand, energetic electrons do not have a constant velocity independent of their energy. According to classical physics, the velocity of an electron can vary depending on its energy. In classical mechanics, the kinetic energy of an object is related to its velocity. However, in the microscopic world of quantum mechanics, the behavior of particles such as electrons is described differently.
In quantum mechanics, the concept of particle velocity becomes less straightforward. Instead of velocity, quantum particles are described by wavefunctions, which represent the probability distribution of finding the particle at a certain location. The wavefunction of an electron evolves over time according to the Schrödinger equation, and it does not directly correspond to a well-defined classical velocity.
However, in certain situations, such as in electron beams or particle accelerators, electrons can be accelerated to high energies. In these cases, the energy of the electrons is related to their speed, but it is not a constant relationship. As the energy of the electrons increases, their speed can also increase, but it is not independent of their energy.
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Based on this how many Carbon
Atoms would be on the products
Side
Answers
Calculate the heat energy liberated when 75 g of iron freezes at its freezing point. (Lf for iron = 245 000 J/kg).
Answers
The heat energy liberated when 75 g of iron freezes at its freezing point is 18,375 Joules.
To calculate the heat energy liberated when 75 g of iron freezes at its freezing point, we can use the formula Q = m * Lf, where Q represents the heat energy, m is the mass of the substance, and Lf is the latent heat of fusion.
Given:
Mass of iron (m) = 75 g = 0.075 kg
Latent heat of fusion for iron (Lf) = 245,000 J/kg
Using the formula, we can calculate the heat energy liberated:
Q = m * Lf
= 0.075 kg * 245,000 J/kg
= 18,375 J
Therefore, the heat energy liberated when 75 g of iron freezes at its freezing point is 18,375 Joules. This energy is released during the phase change from liquid to solid as the iron freezes. It represents the amount of thermal energy that is transferred out of the iron as it transitions from a liquid state to a solid state.
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Explain in detail how clouds form.
Answers
Answer:
Clouds are formed when moist air rises upward . As the air rises , it becomes colder. Eventually the air can't hold all of the water vapour in it, and some of water vapour condenses to form tiny water droplets... Clouds form at wide range of altitudes , from near the ground to very high in the atmosphere.
A 15 kg object and a 18 kg object are connected by a massless compressed spring and
rest on a frictionless table. After the spring is
released, the object with the smaller mass has
a velocity of 12 m/s to the left.
What is the velocity of the object with the
larger mass?
Answer in units of m/s.
Answers
Hi there!
This is an example of a recoil collision.
Using the conservation of momentum:
\(p_i = p_f\)
The initial momentum is 0 kgm/s (objects start from rest), so:
\(p_f = 0\)
We are given that the 15 kg block has a velocity of 12 m/s to the left, so:
\(m_1v_1' + m_2v_2' = 0 \\\\15(-12) + 18v_2' = 0 \\\\\)
Solve for v2':
\(18v_2' = 180 \\\\v_2' = \boxed{10 m/s}\)
What is frequency of a 0.0004 m ultrasonic wave passing through human tissue? Assume speed of sound in human tissue is 1500 m/s. Formula f= v/¥
Answers
Given:
the speed of sound in human tissue is
\(v=1500\text{ m/s}\)the wavelength of the wave is
\(\lambda=0.0004\text{ m}\)Required: frequency of the wave.
Explanation:
to find the frequency of the wave we use the relation that is given by
\(f=\frac{v}{\lambda}\)Plugging all the values in the above relation, we get
\(\begin{gathered} f=\frac{1500\text{ m/s}}{0.0004\text{ m}} \\ f=3750000\text{ Hz} \\ f=3.75\text{ MHz} \end{gathered}\)Thus, the frequency of the wave is
\(3.75\text{ MHz}\)what must a uranium-235 nucleus absorb before fission will happen
Answers
Answer:
The arrangement of particles within uranium-235 is somewhat unstable and the nucleus can disintegrate if it is excited by an outside source. When a U-235 nucleus absorbs an extra neutron, it quickly breaks into two parts. This process is known as fission
Answer:
a nuetron
Explanation:
In a nuclear reactor , a neutron is absorbed into a nucleus (typically uranium-235). ... The fast moving neutrons carry most of the energy from the reaction with them (99%) but before the neutrons can collide with fresh uranium nuclei, they need to be slowed down
A car is sitting at a traffic light. When the light turns green, the car begins moving, accelerating at a constant rate. After 14.9 seconds the car has moved 266 meters. What is the acceleration of the car?
Answers
I’m thinking?
Answer:
The acceleration 2.4 m/s²
Explanation:
Given:
V₀ = 0 m/s - Initial vehicle speed
t = 14.9 s - Time
D = 266 m - Distance traveled by car
__________
a - ? - the acceleration
D = V₀·t + a·t² / 2;
V₀ = 0
D = a·t² / 2;
a = 2·D / t² = 2·266 / 14.9² ≈ 2.4 m/s²
How do you calculate the average power, current, potential difference of an AC generator
Answers
37. A baseball is pitched at a speed of 40 m/s. How long does it take the ball to travel 27
meters from the pitcher's mound to home plate?
Answers
Answer:
0.675
Explanation:
hope you get it right
Answer:
\(0.675\:\mathrm{s}\)
Explanation:
Displacement can be given as \(\Delta x=v_x\cdot t\)
Substituting given values, we have:
\(27=40t,\\t=\frac{27}{40}=\boxed{0.675\:\mathrm{s}}\)
star a and star b are both on the main sequence. star a is 28 times more luminous than star b. which star is more massive?
Answers
To find the massive stars known the luminous first.
What is luminous?
Luminous objects are those that produce their own light. Sun, candle flame, among other examples Non-luminous items are those that are unable to produce light on their own. These objects reflect light from their luminous bodies.
What is main sequence star?
Any star that is fusing hydrogen in its core and has a stable equilibrium between the inward pressure from gravity forces and the outward pressure from core nuclear fusion is considered to be in the main sequence.
Therefore, we can conclude that star A is more massive because the luminous stars are massive.
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Why does the sun only appear to pass through the constellations of the zodiac? For example, why doesn't the zodiac include ursa major?
Answers
The sun only appear to pass through the constellations of the zodiac because Over the course of a year, the sun appears to be in front of, or “in”, different constellations due to its orbit .
A group of stars that can be identified with the shape of an identifiable object like an animal or a known object is called a constellation. Major constellations are the Ursa Major, Ursa Minor and Cassiopeia.
Its motion is entirely an illusion, caused by Earth's own motion around our star. Over the course of a year, the sun appears to be in front of, or “in”, different constellations. One month, the sun appears in Gemini; the next month, in Cancer.
If we wanted to (and were endowed with supernatural powers), we could alter Earth's orbit so that the Sun appears to move through other constellations. Neither Lupus nor Lyra can be zodiac constellations, however, because the Sun doesn't "move through them."
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