You wish to study a resistor in a circuit. To simultaneously measure the current in the resistor and the voltage across the resistor, you would placea. An ammeter in series and a voltmeter in series
b. An ammeter in series and a voltmeter in parallel
c. An ammeter in parallel and a voltmeter in series
d. An ammeter in parallel and a voltmeter in parallel
Answers
To simultaneously measure current and voltage across a resistor in a circuit, place an ammeter in series and a voltmeter in parallel. Therefore, the correct answer is b.
One would need to position measuring devices in particular positions to concurrently measure the current and voltage in a resistor inside a circuit. The resistor and an ammeter, which gauges electrical current, should be connected in series. This indicates that it is wired into the circuit so that current can flow through it.
A voltmeter, which measures voltage, should be connected to the circuit in parallel with the resistor so that it can measure the voltage across the resistor.
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you would place an ammeter in series and a voltmeter in parallel. So, the correct answer is (a).
The correct answer is option (a). To simultaneously measure the current in the resistor and the voltage across the resistor, you would place an ammeter in series and a voltmeter in parallel. This is because the ammeter must be placed in series with the resistor to measure the current passing through it, while the voltmeter must be placed in parallel with the resistor to measure the voltage across it. By placing both instruments in series with the resistor, they can both measure their respective values simultaneously.
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Related Questions
Fossils that can be used to date rocks are known as_?
Question 1 options:
old fossils
discovery fossils
index fossils
sedimentary fossils
Answers
Answer:
index fossil
Explanation:
To prevent injuries you should do a warm up and cool down.
True or False
Answers
Answer:
true
hope my ans helps
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Answer:
True
Explanation:
A warm-up revs up your cardiovascular system by raising your body temperature and increasing blood flow to your muscles. Warming up also helps reduce muscle soreness and it lessens your risk of injury. Cooling down after your workout allows for a gradual recovery of pre exercise heart rate and blood pressure.
Can light energy from the sun be used to directly fuel cellular work?.
Answers
Answer:
None of the light energy from the sun can be used directly to fuel cellular work. First it must be captured in the bonds of a molecule called adenosine triphosphate (ATP).
Explanation:
a lever is used to lift a heavy load. when a 50-n force pushes one end of the lever down 1.2 m, the load rises up 0.2 m. calculate the weight of the load.
Answers
Answer:
The weight of the load can be calculated by using the principle of mechanical advantage of a lever. The mechanical advantage of a lever is the ratio of the force exerted on the load (F_L) to the force applied to the lever (F_A). In this case, the mechanical advantage of the lever is given by the ratio of the distance the load moves (0.2 m) to the distance the force is applied (1.2 m), or MA = 0.2/1.2 = 1/6.
So the force exerted on the load (F_L) is 6 times the force applied to the lever (F_A) and the weight of the load can be calculated as:
Weight of the load (F_L) = Mechanical advantage x Applied force (F_A)
F_L = (1/6) * 50 N = 8.33 N
So the weight of the load is 8.33 N.
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Starting from rest, a car travels 18 meters as it accelerates uniformly for 3.0 seconds. What is the magnitude of the car's acceleration? A. 6.0 m/s2 B. 2.0 m/s2 C. 3.0 m/s2 D. 4.0 m/s2
Answers
Answer:
D. 4 m/s²
Explanation:
Given;
initial velocity of the car, u = 0
distance traveled by the car, s = 18 m
time of motion of the car, t = 3.0 s
The magnitude of the car's acceleration is given by;
s = ut + ¹/₂at²
s = 0 + ¹/₂at²
s = ¹/₂at²
2s = at²
a = 2s / (t²)
a = ( 2 x 18) / (3²)
a = 4 m/s²
Therefore, the magnitude of the car's acceleration is 4 m/s²
Determine the mass of a person if the gravitational force of attraction between the person and another of mass 42.90 kg is 0.0996381755 N when they are standing 95.32 m apart.
Answers
Answer:
\(3.16*10^1^1\) kg
Explanation:
According to Newton's Law of Universal Gravitation:
\(F=G\frac{m_1m_2}{r^2}\\F=0.0996381755N\\G=6.674*10^-^1^1\frac{Nm^2}{kg^2}\\m_2=42.90kg\\r=95.32m\)
Rewriting to solve for \(m_1\):
\(m_1=\frac{F(r)^2}{G(m_2)}\\m_1=\frac{(0.0996381755N)(95.32m)^2}{(6.674*10^-11\frac{Nm^2}{kg^2})(42.90kg)}\\m_1=3.16*10^1^1kg\)
I believe this is the answer based on the given values, but it is not a logical answer. Is it possible one or more of the values in the question were entered incorrectly?
goat gallops at -1.5m/s, how far will the goat travel in 20 seconds?
Please show work
Answers
Answer:
30m
Explanation:
Given parameters:
Speed of the goat = 1.5m/s
Time = 20s
Unknown:
Distance traveled = ?
Solution:
To solve this problem, we use;
Speed = \(\frac{distance}{time}\)
Distance = Speed x time
So;
Distance = 1.5m/s x 20s = 30m
Lab Report( 80 )
Energy
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U1_ Lab_Energy_Alice_Jones.doc).
Introduction
1. What was the purpose of the experiment?
Type your answer here:
2. What were the independent, dependent, and control variables in your investigation? Describe the variables for the first part of the experiment.
Type your answer here:
Experimental Methods
1. What tools did you use to collect your data?
Type your answer here:
2. Describe the procedure that you followed to collect the data for the first part of the experiment.
Type your answer here:
Data and Observations
1. Record your observations in the data table.
Type your answer here:
Table 1. Measurements Taken from a Simulation of a [insert mass value] kg Ball Released from Various Heights on a Ramp
Mass of ball (kg) Drop height on ramp (m) Potential energy (J) Time to travel 1.0 m (s) Speed (m/s) Kinetic energy (J)
0.5
1.0
1.5
2.0
2.5
3.0
Conclusions
1. What conclusions can you draw about how the amount of potential energy stored in a system changes as a ball is placed at varying heights on a ramp? Write an evidence-based claim.
Type your answer here:
2. Develop a model (diagram) that shows how different amounts of gravitational potential energy (GPE) are stored in the earth-ball system when the ball is raised to different heights on the ramp.
Type your answer here:
3. How did you use what you learned from the first part of the experiment to design a marble run?
Type your answer here:
Pls answers all of these questions quickly
Answers
Answer:
Is this a research paper?
while performing night operations, which of the following combinations of lights provide maximum visibility?
Answers
During night operations, the combination of lights that provides maximum visibility typically consists of white headlights, red taillights, and amber side marker lights.
Headlights illuminate the road ahead, while taillights ensure that the vehicle is visible to other drivers from behind. Amber side marker lights improve visibility from the sides and increase the vehicle's overall presence on the road.
Using these combinations of lights is crucial for maintaining safety during night operations, as they allow both the driver and other road users to clearly see and react to each other's movements. This combination is also compliant with most road safety regulations and laws, ensuring that drivers adhere to the necessary standards for nighttime driving. The optimal combination of lights for maximum visibility during night operations includes white headlights, red taillights, and amber side marker lights. These lights work together to improve visibility for the driver and other road users, enhancing overall safety and reducing the risk of accidents during nighttime driving.
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By utilizing the combinations of Forward-facing headlights, Rear-facing taillights, Side marker lights and reflective materials, you can significantly enhance your visibility during night operations.
While performing night operations, the combination of lights that provide maximum visibility includes a mix of properly positioned and adjusted forward-facing headlights, rear-facing taillights, and side marker lights. Additionally, utilizing reflective materials on your equipment can further enhance visibility during nighttime operations.
1. Forward-facing headlights: Ensure your headlights are bright enough to illuminate the path ahead, and that they are correctly aligned to provide optimal visibility without blinding oncoming traffic or causing glare for yourself.
2. Rear-facing taillights: These lights alert other drivers to your presence and help them maintain a safe distance. Ensure your taillights are clean, functioning correctly, and clearly visible to those behind you.
3. Side marker lights: These lights are crucial for identifying the size and shape of your vehicle, allowing others to better gauge their distance from you. Place them along the sides of your vehicle, trailer, or equipment to maximize visibility.
4. Reflective materials: Using reflective tape or markers on your vehicle, equipment, or clothing can significantly improve your visibility to others. Reflective materials catch and reflect light from other sources, making it easier for others to see you during night operations.
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Two Brothers are playing soccer on the beach. One brother kicks the ball really hard and the ball lands in the water, about 50 meters from the beach. They wonder if the ball will float back to the beach.
Answers
Answer:
Due to wind and waves of water.
Explanation:
They wonder that the ball will float back to the beach because of the wind and the waves of the water. The wind blows towards the beach which moves the water in the form of waves towards the beach so if the ball lands in the water, it will floats on the surface of water and move towards the beach with the help of wind and waves of the sea. The ball floats on the water due to its lighter weight and lower density as compared to water.
Define G and give its value.
Answers
This tasty snack starts as a kernel and is “popped” then
covered in salt, butter, caramel, peanuts, you name it.
Through thermal energy we've learned to heat things, you
could use conduction, convection and/or radiation. Describe
1 cooking option in detail including whether it is convection,
conduction or radiation. Must be at least 2 sentences.
Answers
Conduction in a pan with hot oil on a stove element.
Convection by an air popper and warm air rising over a heating element... no direct contact with heat source.
Radiation is what occurs in a microwave. Invisible radiant heat activates water molecules in the popcorn.
All the above heat the kernel over 100 Celsius. Water vaporizes/boils (latent heat) and erupts through the kernel.
Mmmm popcorn watch out for the lipids (fat in the oil and butter)
Radius of curvature of human eye is 0.78 cm. For an object at infinity, image is formed at 3 cm behind the
Tetracting surface. The refractive index of eye is:
Answers
The refractive index of the eye cannot be determined with the information provided.
What is the refractive index of the eye,n ?This refers to the value obtained from the ratio of the speed of light in a vacuum to that in a second medium of greater density.
The refractive index is also equivalent to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance.
It can be calculated using the formula:
n = c/v.
where,
n = the refractive index of the eye
c = wavelength in empty space
v = the velocity of light
From the question:
r = 0.78 cm
i = 3 cm
The radius of curvature and the location of the image formed by an object at infinity is related to the eye's optics, but the refractive index also depends on the materials of the various parts of the eye, such as the cornea and lens.
Hence, the refractive index can also vary depending on the specific wavelength of light being considered.
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if electrical hand tools are equipped with a three prong power cord with one wire going to ground
Answers
If electrical hand tools are equipped with a three prong power cord with one wire going to ground, then they are designed to ensure safety while using them. The ground wire provides a safe path for any stray electrical currents that may occur during usage.
This can happen due to various reasons such as a short circuit or an equipment malfunction. If such a situation arises, the current will flow through the ground wire and directly into the ground, instead of causing harm to the user. Additionally, the prong power cord ensures that the tool is properly grounded and reduces the risk of electric shock. The three prongs include a hot wire, a neutral wire, and a grounding wire, which together form a complete circuit. The hot wire carries electricity from the source, the neutral wire returns the current to the source, and the grounding wire provides a safe route for any excess current to flow through.
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1. True or False: An ideal gas only has kinetic energy. Briefly
explain your reasoning.
2. True or False: A frictionless piston that expands in a vacuum
(external pressure is 0) does work on its surro
Answers
1.The statement "An ideal gas only has kinetic energy" is false the kinetic energy is associated with the random motion of the gas molecules, but the gas molecules can also have potential energy due to intermolecular forces or external fields.2.The statement "A friction less piston that expands in a vacuum (external pressure is 0) does work on its surroundings." is true .
An ideal gas does not only have kinetic energy. In addition to kinetic energy, an ideal gas also possesses potential energy and internal energy. Internal energy accounts for both the kinetic and potential energy of the gas molecules.So given statement is false .
A friction less piston that expands in a vacuum and experiences an external pressure of 0 does work on its surroundings. Work is defined as the transfer of energy that occurs due to the application of a force over a displacement. In this case, as the piston expands, it exerts a force on the surroundings and undergoes a displacement. Since the external pressure is 0, the piston does work without any opposing force. Thus, the piston does work on its surroundings in this scenario.So given statement is true .
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PLEASE HELP ME! IM TIMED
Answers
With modulus of elasticity, MoE - 7,920 N/mm2 at 12% mo, what would be the expected MoE at 23% mc? Assume FSP = 30 % Give your answer in N/mm² to the nearest whole number.
Answers
to find the modulus of elasticity MoE at 23% of moisture content based on the already given modulus of elasticity of 12% moisture content we need to consider a shrinkage behavior of material. the expected MoE comes out to be approximately \(6,836 N/mm².\)
given information:
Modulus of elasticity at 12% moisture content =7,920 N/mm²
resultant shrinkage or final shrinkage percentage FSP = 30%
To calculate the expected MoE at 23% moisture content we have the following equation:
MoE-23% = \(MoE-12%\) \((1 - FSP (23 - 12) / (100 - 12))\)
MoE-23% = \(7,920 N/mm² × (1 - 0.30 × (23 - 12) / (100 - 12))\)
MoE-23% =\(7,920 N/mm² × (1 - 0.30 × 11 / 88)\)
MoE-23% = \(7,920 N/mm² × (1 - 0.1364)\)
MoE-23% = \(7,920 N/mm² × 0.8636\)
MoE-23% = \(6,836 N/mm²\)
therefore the expected modulus of elasticity at 23% moisture content comes out to be approx \(6,836 N/mm²\).
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A small convex mirror is placed 60 cm from the pole and on the axis of a large concave mirror of radius of curvature 200 cm. The position of the convex mirror is such that a real image of distant object is formed on the plane of a hole drilled through the concave mirror at its pole. Calculate 'R' of convex mirror and height of the real image if distant object forms 0.5 degree angle at the pole of the concave mirror.
Answers
Answer:
Calculate 'R' of convex mirror and height of the real image
the radius of the convex mirror is 48cm
Explanation:
Distance between convex and concave mirror is =60cm
Radius of the concave mirror (R) = 200cm
For the concave mirror, u = ∞
V = {R}/{2}=100cm
The object for the convex mirror and the final image is on the pole of the concave mirror, and distance between convex and concave mirror is 60cm
u_1=60-100 =-40cm
Object will be behind the convex mirror
1/f=1/40+1/60
f=24cms
the radius of the convex mirror is 48cm
15. One of the smallest nations in the world is Liechtenstein, a tiny country
between Switzerland and Austria in Europe. If its area is 160 km', how many
square meters is this area?
Answers
If its area is 160 km², then this area would be 1.6 ×10⁸ in square meters.
What is a unit of measurement?A unit of measurement is a specified magnitude of a quantity that is established and used as a standard for measuring other quantities of the same kind. It is determined by convention or regulation.
As given in the problem, one of the smallest nations in the world is Liechtenstein, a tiny country between Switzerland and Austria in Europe. If its area is 160 km.
1 km² = 10⁶ meter²
160 km² =160 × 10⁶ meter²
= 1.6 ×10⁸ meter²
Thus, this area in square meters would be 1.6 ×10⁸ meter²
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Using the correct IUPAC nomenclature, what is the correct name, formula,
and classification of a compound that contains two nitrogen atoms and one
oxygen atom?
O A. Mononitrogen dioxide, N20, covalent compound.
B. Nitrogen dioxide, NO2, ionic compound.
O C. Dinitrogen monoxide, N20, covalent compound.
D. Nitrogen oxide, No, ionic compound.
Answers
Answer: C is right
Explanation:
N and O are no-metals and forms covalent bonds.
Usually they need a. Prefix whic tells number of atoms in compound
PLEASE HELP ME ASAP!!!
Answers
Answer:
90
Explanation:
The portion where gas turns to liquid
Match each planet with its name study island
Answers
In our solar system, there are eight planets that orbit around the sun.
Here are the names of the planets and a brief description of each:Mercury: It is the smallest planet in our solar system and is located closest to the sun. It has a rocky, cratered surface and no atmosphere.
Venus: It is the second planet from the sun and is known for its thick, toxic atmosphere that traps heat, making it the hottest planet in our solar system.
Earth: It is the third planet from the sun and the only known planet that has life on it. It has a diverse ecosystem and a protective atmosphere.
Mars: It is the fourth planet from the sun and is known as the "Red Planet" due to its rusty color. It has a thin atmosphere and is home to the largest volcano in the solar system.
Jupiter: It is the largest planet in our solar system and is known for its massive size and swirling gas clouds. It has 79 moons and a strong magnetic field.
Saturn: It is the second-largest planet in our solar system and is known for its stunning ring system made up of ice and rock particles.
Uranus: It is the seventh planet from the sun and is known for its blue-green color and its unique tilted axis, which causes it to spin on its side.
Neptune: It is the eighth planet from the sun and is known for its deep blue color and strong winds. It has 14 moons and a large, dark spot known as the Great Dark Spot.
Remembering the order of the planets from the sun, the mnemonic device "My Very Educated Mother Just Served Us Nachos" can be used: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
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A 0.55 kg block is being pulled by a 2.5 n force east across a horizontal frictionless surface what is the acceleration of the block
Answers
Answer:
The answer is 4.54 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
\(a = \frac{f}{m} \\ \)
f is the force
m is the mass
From the question we have
\(a = \frac{2.5}{0.55} \\ = 4.545454...\)
We have the final answer as
4.54 m/s²Hope this helps you
A car travelling at 91.0 km/h approaches the turnoff for a restaurant 30.0 m ahead. If the driver slams on the brakes with an acceleration of -6.40 m/s2
2
what will her stopping distance be?
Answers
The stopping distance of the car is 49.9 m
Data obatined from the questionThe following data were obtained from the question:
Initial velocity (u) = 91 Km/h = 91 / 3.6 = 25.28 m/sAcceleration (a) = -6.4 m/s²Final velocity (v) = 0 m//s Stopping distance (s) = ?How to determine the stopping distanceThe stopping distance can be obtained as illustrated below:
v² = u² + 2as
0² = 25.28² + (2 × -6.4 × s)
0 = 639.0784 - 12.8s
Collect like terms
-12.8s = 0 - 639.0784
-12.8s = -639.0784
Divide both sides by -12.8
s = -639.0784 / -12.8
s = 49.9 m
Thus, the stopping distance of the car is 49.9 m
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What is the purpose of setting a deadline for a goal?
Answers
Answer:
To help push yourself to reach the goal, It can also help you pace yourself time wise
Explanation:
what are the S.I units of K so that the equation Velocity = K × density is dimensionally correct ? Give your answer in terms of the basic units. ( Kg-¹m45-¹)
Answers
The S.I units of K so that the equation Velocity = K × density is dimensionally correct is M^-1.L^3.T^-1 [L^3.M^-1.T^-1]
What is an S. I Unit?The most extensively used system of measuring in the world is the International System of Units, sometimes known as the SI system and abbreviated SI in all languages. It is the current version of the metric system.
Attached in this answer is the straightforward solution of the question and this shows the dimensional correctness needed after the equation Velocity = K × density has been solved,.
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Vinegar contains 5.00% acetic acid (by mass) and its density is 1.02g / mL
What is the mass of acetic acid, in measured grams, in 185 mL of vinegar?
Answers
The mass of acetic acid would be 9.435 grams, in 185 mL of vinegar if Vinegar contains 5.00% acetic acid (by mass) and its density is 1.02g / mL
What is density?It can be defined as the mass of any object or body per unit volume of the particular object or body. Generally, it is expressed as in gram per cm³ or kilogram per meter³.
Generally, the density of any substance is expressed by the greek symbol ρ. The density is the reciprocal of the specific volume of any substance.
.
By using the above formula for density
ρ = mass / volume
As given in the problem Vinegar contains 5.00% acetic acid (by mass) and its density is 1.02g / mL
The total mass of the vinegar
mass= ρ×volume
=1.02×185
=188.7
As given Vinegar contains 5.00% acetic acid (by mass)
the mass of acetic acid = 5×188.7/100
=9.435 gram
Thus, the mass of acetic acid comes out to be 9.435 grams
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why must geostationary satellite rotate in the same direction as Earth's rotation?
Answers
Answer:
Its happen because the satellite orbits at the same speed as the Earth is rotating, so it appears that the satellite is located at the same longitude, although it may drift from north to south. This particular, high Earth orbit is called geosynchronous. It is always directly in the same place on the surface of the earth.
Explanation:
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A 740 kg car traveling 19 m/s comes to a complete stop in 2.0 s. What is the force exerted on the car during this stop?
Answers
Answer:
Force exerted on the car is 7030 N.
Explanation:
It is given that,
Mass of the car, m = 740 kg
Initial speed of the car, u = 19 m/s
Final speed of the car, v = 0
Time taken, t = 2 s
Let F is the force exerted on the car during this stop. We know that it is equal to the product of force and acceleration. Mathematically, it is given as :
F=m\times \dfrac{v-u}{t}F=m×tv−u
F=740\times \dfrac{0-19}{2}F=740×20−19
F = -7030 N
So, the force exerted on the car during this stop is 7030 N. Hence, this is the required solution.
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An electron is in motion at 4.0 × 10^6 m/s horizontally when it enters a region of space between two parallel plates, as shown, starting at the negative plate. The electron deflects downwards and strikes the bottom plate. The magnitude of the electric field between the plates is 4.0 x 10^2 N/C and separation between the charged plates is 2.0 cm.
Determine the horizontal distance travelled by the electron when it hits the plate.
Answers
Answer:
Given that
speed u=4*10^6 m/s
electric field E=4*10^3 N/c
distance b/w the plates d=2 cm
basing on the concept of the electrostatices
now we find the acceleration b/w the plates to find the horizontal distance traveled by the electron when it hits the plate.
acceleration a=qE/m=\(1.6*10^{-19}*4*10^3/9.1*10^{-31} =0.7*10^{15}\)=\(7*10^{14}\) m/s
now we find the horizontal distance traveled by electrons hit the plates
horizontal distance
\(X=u[2y/a]^{1/2}\)
=\(4*10^6[2*2*10^{-2}/7*10^{14}]^{1/2}\)
=\(3*10^{-2}\)= 3 cm