30 points!!
Electricity seems like a fundamental element in the construction of any home. However, to have electricity run into and out of a home, there must be a complete circuit. Write a brlef essay describing the minimum requirements for any electric circuit. Within your essay, describe the task for each of these elements using your lessons and experience
within this virtual lab.
At least 150 words needed.
Answers
•Most of the components that make up curcuits are conductors. Electricity flows easily thought conductors such as metal or water.Electricity does not flow easily thought insulators such as wood or rubber.
•When a battery is used to power a circuit, the circuit the current must travel from one pole of the battery to the opposite battery.
•Resisotors show the flow of Electricity throught a circuit this can prevent components of the circuit from 'brning out'. In a curcuit diagram, resistors are represented by bending lines.
Related Questions
A satellite with a mass of 91 kg fires its rocket thrusters, which give an impulse of 4095 kg•m/s. What was the total change in the velocity of the satellite - that is, what was the total ΔV?
Answers
Answer:
45 m/s2
Explanation:
a p e x users
The force involved in a collision is 1.0×10 to the second power newtons the duration of the impact is 1.0×10 to the fourth power seconds what is the value of the change in momentum
Answers
Knowing the force and the duration, we can simply multiply them to get the "impulse". This is really convenient for this question, because the impulse is also the change in momentum. So let's do it:
Change in momentum = (force) x (duration)
Change in momentum = (1 x 10² Newtons) x (1 x 10⁴ seconds)
Change in momentum = (100 N) x (10,000 seconds)
Change in momentum = 1,000,000 Newton-seconds
Change in momentum = 1,000,000 kg-m/s .
That sunawfulada momentum ! It's the same change in momentum as if you stopped a 4,000-kg truck that was going 550 mph, in 1 second !
There's gotta be something wrong here.
Notice the duration of the impact in the question: 1 x 10⁴ seconds.
That's 2 hours and 47 minutes ! Collisions don't normally take that long.
Call me batty, but I've got a hunch that the duration actually is supposed to be 1.0 x 10 to the NEGATIVE fourth power. Then, the change in momentum is
(100 N) x (0.0001 s) = 0.01 kg-m/s
That's still a slightly uncomfortable result, but it's definitely more realistic ... it could be the act of batting a fly or a mosquito out of the air.
I like that a lot better than a collision that takes almost 3 hours.
Newt noticed that It hurt his body more when he Jumped off a high diving board than It did when he Jumped off the lower board. What law of newton is this and why
Answers
Answer:
Newton's 3rd law of motion
Explanation:
According to the question, Newt noticed that It hurt his body more when he Jumped off a high diving board than It did when he Jumped off the lower board. What law of newton is this and why
By the time Newt want to jump, for him to do so, he has to push himself against the ground according to the Newton's 3rd law of motion.
The law states that in every action, there will be equal and opposite reaction.
The force at which he pushes himself against the ground will determine the force at which he will carry himself to jump off the high diving board.
The reaction towards the high diving board will be greater than the reaction towards the low diving board.
Therefore, Newt will hurt his body more when he Jumped off a high diving board than It did when he Jumped off the lower board. And the law of newton that is responsible for this is Newton's third law of motion.
What is the speed of a
rocket that travels
8,000m in 13 seconds?
Answers
Answer:
speed of rocket=615.38m/s
Explanation:
How long will it take 240V, 3000W electric immersion heater to raise the temperature of 150 litres of water in a well-lagged calorimeter made of copper of mass 20kg from 15° to 70°C?
Answers
Answer:
Q = mcΔT
Where:
Q is the heat energy transferred
m is the mass of the water
c is the specific heat capacity of water
ΔT is the change in temperature
First, let's calculate the heat energy required to raise the temperature of the water:
Q = mcΔT
m = 150 kg (since 1 liter of water is approximately equal to 1 kg)
c = 4186 J/kg°C (specific heat capacity of water)
ΔT = 70°C - 15°C = 55°C
Q = (150 kg) * (4186 J/kg°C) * (55°C)
Q = 346,185,000 J
Now, let's calculate the time using the power of the electric immersion heater:
P = W/t
P = 3000 W (power of the heater)
We can rearrange the formula to solve for time:
t = W/P
t = Q/P
t = (346,185,000 J) / (3000 W)
t ≈ 115,395 seconds
To determine the work done, one can always just simply multiply force time distance.
true or false
Answers
False. While multiplying force by distance gives the work done in certain scenarios, it is not universally true in all situations.
Work is defined as the product of force and displacement only when the force and displacement are in the same direction or parallel. In this case, the work done can be calculated using the formula W = F * d * cosθ, where F is the force applied, d is the displacement, and θ is the angle between the force and displacement vectors. When the force and displacement vectors are perpendicular, the work done is zero because there is no displacement in the direction of the force. Additionally, in cases where the force varies with distance or is applied at an angle to the displacement, more complex calculations or integration may be required to accurately determine the work done.
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a stone of mass 750 kg is thrown vertically upward with a velocity of 10m/s find the potential energy at the greatest height and kinetic energy on reaching the ground
Answers
Answer:
Potential Energy at the greatest point = 37.5 J
Explanation:
Given :
Mass is 750 g
In term of kg :
Mass is 0.75 kg .
Velocity ( v ) = 10 m / sec
We have formula for kinetic energy :
K.E. = 1 / 2 m v²
Putting values now :
K.E. = 1 / 2 × 0.75 × 10 × 10
K.E. = 1 / 2 × 75 J
K.E. = 37.5 J
Since K.E . = P.E.
Thus potential energy of stone is 37.5 J .
2 QUESTIONS!! PLEASE HELP QUICK
1. true or false: Balanced forces acting on an object result in constant velocity
2. If one of the cars starts and ends at the same point in the race (making a loop around the track), what is the car's displacement?
0
1
2
7.5
Answers
Answer:
1. True 2.0
Explanation:
1. When balanced forces are acting on an object, they have a constant velocity, meaning that the velocity remains the same.
2. When an object begins at a starting point and returns back to that same starting point, its displacement would be 0.
I'm pretty confident in these answers, however, you must have studied this more than me, so let me know if you have any questions or concerns at all, I'll be glad to help. :)
You have two rocks made of the same material that are at the same
temperature. The first rock has three times the mass of the second rock. How
does the thermal energy of the two rocks compare?
A. The second rock has three times the thermal energy of the first rock
B. The first rick has six times the thermal energy of the second rock
C. The second rock has one-third as much thermal energy as the first rock
D. The rocks have the same amount of thermal energy
Answers
Answer:
the rocks have the same amount of thermal energy
HURRY!!!!
Fred and Ted are racing cars down a frictionless track with a jump at the bottom
when suddenly an argument breaks out. Fred says, “If we release the cars from a
point twice as high as we are currently doing so, the cars will have twice the
gravitational potential energy, and therefore be travelling twice fast when they hit
the jump." Ted says, “In order to double the speed of the cars when they hit the
ramp, I think we will have to more than double the height!" Who is right? Prove it!
Answers
Answer:
Ted is correct
Explanation:
The equation for gravitational potential energy is PE = m·g·h
The equation for gravitational kinetic energy is KE = 1/2·m·v²
Where:
m = Mass of the object (The racing car)
g = Acceleration due to gravity
h = The height to which the object is raised
v = Velocity of motion of the object
From the principle of conservation of energy, energy can neither be created nor destroyed but changes from one form to another, we have;
Potential energy gained from location at height h = Kinetic energy gained as the object moves down the level ground
m·g·h = 1/2·m·v² canceling like terms gives
g·h = 1/2·v²
v = (√2·g·h)
If the speed is doubled, we have
2·v = 2× (√2·g·h) = (√2·g·4·h)
Therefore, if 2·v = v₂ then v₂ = (√2·g·4·h)
Since g, the acceleration due to gravity, is constant, it means that the initial height must be multiplied or increased 4 times to get the new height, that is we have;
v₂ = (√2·g·4·h) = (√2·g·h₂)
Where:
4·h = h₂
Which gives;
v₂² = 2·g·h₂
1/2·v₂² = g·h₂
1/2·m·v₂² = m·g·h₂ Just like in the first relation
Therefore, Ted is correct s they need to go up four times the initial height to double the speed.
why do chemical bonds form
Answers
Answer:
A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons. Atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons
Explanation:
Answer:
A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons. Atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons.
which model of the universe is currently the most accepted in light of the discovery of dark energy?
Answers
An accelerating universe is currently the most accepted in light of the discovery of dark energy.
A hypothesized energy known as "dark energy" acts in opposition to gravity by exerting a repellent, negative pressure. It has been proposed to explain the observable characteristics of far-off type Ia supernovae, which reveal the universe is expanding at a faster rate than usual.
Saul Perlmutter, Brian Schmidt, and Adam Riess are the recipients of the 2011 Nobel Prize in Physics. They made the stunning conclusion that the universe's expansion is speeding up as a result of their observations of far-off stars exploding.
The distance measurements utilizing type Ia supernovae (SN Ia) for the galaxies at high redshift provide the most direct and compelling evidence for the expanding cosmos powered by dark energy.
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what is the smallest planet of the inner planets and look very much like earth's moon?
Answers
The smallest planet among the inner planets is Mercury. It is the closest planet to the sun and has a diameter of approximately 4,880 km, which is just over one-third the size of Earth.
What is more about Mercury ?Mercury is also the second densest planet in the solar system, after Earth.
Mercury's surface is heavily cratered, similar to the surface of the Earth's moon. This is because both Mercury and the moon lack an atmosphere and do not have active geological processes that could smooth out their surfaces. The temperature on Mercury's surface can reach over 400 degrees Celsius during the day and drop to -170 degrees Celsius at night, due to its proximity to the sun and lack of atmosphereMercury also has a very eccentric orbit, meaning that its distance from the sun varies widely over the course of its year. Its orbital period is just 88 Earth days, which means it experiences just one and a half days for every year. Due to its small size and proximity to the sun, Mercury is difficult to observe from Earth and has only been visited by two space probes, Mariner 10 and Messenger.To know more about Mercury , check out :
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In a simple battery- and - bulb circuit, is the electric current that enters the bulb on the side nearer the positive terminal of the battery larger than the current that leaves the bulb on the opposite side?
Answers
No, the electric current entering and leaving a bulb in a simple battery-and-bulb circuit is the same. The current remains constant throughout a series circuit. The bulb acts as a resistor, which impedes the flow of electrons, causing them to release energy in the form of light.
The rate at which energy is dissipated as light depends on the resistance of the bulb, but the current entering and leaving it is equal. Conservation of charge dictates that the amount of charge flowing into the bulb must be the same as the amount flowing out.
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2. Speed limits on curves help to reduce the effect of ........force on a vehicle
A. enertia
b. centrifugal
c. gravity
Answers
Answer:
enertia
Explanation:
enertia
The correct answer is (B) Centrifugal Force
The centrifugal force on a vehicle on the curves is outwards or can say away from the curve and pulls the out of the track.
the centrifugal force is given by \(F=\frac{mv^{2} }{r}\), which is directly proportional to speed v.
Speed limits on the curves help in reducing the centrifugal force by reducing the speed.
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Which of the following objects can be observed when galaxies interact? a. All of these b. Starburst galaxies c. Tidal tails d. Ring galaxies
Answers
When galaxies interact, we can observe starburst galaxies, tidal tails, and ring galaxies. Here's a brief explanation of each:
1. Starburst galaxies: These are galaxies that experience a sudden, intense increase in star formation due to the interaction with another galaxy. The gravitational forces cause gas and dust to compress, triggering the birth of new stars.
2. Tidal tails: When galaxies interact, gravitational forces can stretch the stars, gas, and dust in each galaxy, creating elongated structures called tidal tails. These tails can extend for thousands of light-years and may eventually form new stars or even smaller galaxies.
3. Ring galaxies: These are formed when a smaller galaxy passes through the center of a larger one, creating a density wave that pushes gas and dust outward into a ring-like structure. This process triggers star formation, leading to the appearance of a ring galaxy.
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Select the correct answer. If the resistance remains constant and the voltage doubles, what effect will that have on the power? A. The power will remain the same. B. The power will decrease by a factor of 2. C. The power will decrease by a factor of 4. D. The power will increase by a factor of 2. E. The power will increase by a factor of 4.
Answers
If the resistance remains constant and the voltage doubles, the power will increase by a factor of 4 (option E)
How do i determine the new power?The following data were obtained from the question:
Initial power (P₁) = PInitial voltage (V₁) = VResistance = ConstantNew voltage (V₂) = 2VNew power (P₂) =?P = V² / R
Resistance is constant, we have
V₁² / P₁ = V₂² / P₂
V² / P = (2V)² / P₂
V² / P = 4V² / P₂
Cross multiply
V² × P₂ = P × 4V²
Divide both side by V²
P₂ = P × 4V² / V²
P₂ = P × 4
From the above, we can conclude that the power will increase by a factor of 4 (option E)
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A Parachutist with a camera, with descending at a speed of 12.5m/s, releases, the camera at an altitude of 64.3m. What is the magnitude of the velocity of the camera just before it hits the ground ? The acceleration of gravity is 9.8 m/s and air friction is negligible. How long does it take the camera to reach the ground
Answers
Given :
Initial velocity, u = 12.5 m/s.
Height of camera, h = 64.3 m.
Acceleration due to gravity, g = 9.8 m/s².
To Find :
How long does it take the camera to reach the ground.
Solution :
By equation of motion :
\(h = ut+\dfrac{gt^2}{2}\)
Putting all given values, we get :
\(12.5t+\dfrac{9.8t^2}{2}=64.3\\\\4.9t^2+12.5t=64.3\)
t = 2.56 and t = −5.116.
Since, time cannot be negative.
t = 2.56 s.
Therefore, time taken is 2.56 s.
Hence, this is the required solution.
A soccer ball is kicked horizontally. What is the average speed if its distance is 21.0 m after 4.00 s?
Answers
What's Alpha beta gamma emission??
Answers
A baseball with a mass of 0. 15 kilograms collides with a bat at a speed of 40 meters/second. The duration of the collision is 8. 0 x 103 seconds. The
ball moves off with a speed of 50 meters/second in the opposite direction. What is the value of the force?
Answers
The value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.
When an object collides with another object, they exchange energy. For example, a baseball and bat collision or a car collision. When two objects collide, the force of the collision has to be equal on both sides of the collision according to Newton's Third Law. So, to find the value of force, we will apply the equation:
F = ΔP / ΔT
where F is the force, ΔP is the change in momentum, and ΔT is the time of collision. The equation represents the impulse momentum theorem.
Now, let's apply the given values to the above equation.
Final momentum (p2) = mass × final velocity (v2)
p2 = 0.15 kg × (-50 m/s)
p2 = -7.5 kg.m/s
Initial momentum (p1) = mass × initial velocity (v1)
p1 = 0.15 kg × (40 m/s)
p1 = 6 kg.m/s
Change in momentum (ΔP) = p2 - p1
ΔP = -7.5 kg.m/s - 6 kg.m/s
ΔP = -13.5 kg.m/s
Time of collision (ΔT) = 8.0 × 10³ s
Now, putting the values of ΔP and ΔT in the equation of impulse momentum theorem, we get:
F = ΔP / ΔT
F = -13.5 kg.m/s ÷ 8.0 × 10³ s
F = -1.7 × 10⁻³ N
Thus, the value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.
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an object is on a horizontal surface. three forces act horizontally on the object: 3 N to the left, 12 N to the right, 1 N to the left. At the same time, another three forces act vertically on the object: 4 N upwards, 10 N downwards , 2 N upwards.
determine the resultant horizontal and vertical forces acting on the object.
Answers
Answer:
Resultant horizontal force : 16 N
Resultant vertical force : 4 N
Explanation: Force acting on left : 3N
Force acting on left : 1 N
Forces acting on left : 3N + 1N = 4N
Force acting on right : 12 N
Resultant horizontal force : 12 N - 4 N = 16 N
Force acting upwards : 4 N
Force acting upwards : 2 N
Forces acting upwards : 4 N + 2 N = 6 N
Force acting downwards : 10 N
Resultant vertical force : 10 N - 6N = 4 N
the emotion that occurs more often to more drivers is
Answers
The emotion that occurs more often to more drivers is frustration.
What is frustration? Frustration is a feeling of dissatisfaction, displeasure, and discontent that arises as a result of an inability to fulfill a need or a goal. In driving, frustration is a common emotional state that occurs when a person is prevented from driving at their preferred pace, or when a person experiences unexpected events while driving, such as traffic jams or sudden accidents. Frustration may be caused by a variety of factors, including:
Driving conditions: Poor weather conditions or heavy traffic, for example, can be stressful and frustrating for drivers.Road rage: Aggressive driving, tailgating, and other reckless behavior on the road may contribute to frustration in other drivers.Inattention: Drivers who are distracted or preoccupied may become frustrated and irritated more easily, particularly when they encounter unexpected situations.Inconvenience: Road construction, detours, and other delays can cause frustration in drivers who are in a hurry to reach their destination.Learn more about emotions: https://brainly.com/question/6450214
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Indicate the direction of the magnetic force. A positive charge travels to the right of the page through a magnetic field that points into the page. Which way does the magnetic force point?
A. Up along the page
B. Down along the page
C. Left
D. Right
PLS HELP ㅠㅠ
Answers
Explanation:
A. Up along the page
Using the law of the right hand
8-30-2018 what phase change occurs as the substance at 0 degree c has its pressure dropped from 0.50 at to 0.25 atm
Answers
Answer:
at T = 0ºC the change of state is from the solid state to the gaseous state
Explanation:
In this exercise we are asked about the changes of state, from the data we will assume that the material is water.
Water can exist in three solid states, liquid and gas, in a graph of pressure ℗ against temperature (T) there is a point called triple at T = 0.01ºC, below this point the curve has two states at high pressure solid and low pressure gas.
As a result of the previous ones at T = 0ºC the change of state is from the solid state to the gaseous state
Is gravitational potential energy mechanical energy?
Answers
The gravitational energy accelerates the object converting the gravitational potential energy into mechanical energy.
What is Mechanical energy?The combination of the potential and kinetic energy due to the gravitational force of the Earth leads to the formation of mechanical energy. The capacity of an object to draw nearby bodies closer to it is known as gravitational energy.
The gravitational attraction of the object transforms its gravitational potential energy into kinetic energy, converting gravitational energy to mechanical energy.
Any gravitational energy held by an object will be transformed into mechanical energy once it is subjected to an external force or falls freely from a height.
Therefore, The gravitational energy accelerates the object converting the gravitational potential energy into mechanical energy.
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Train A leaves the station heading north at 80 mph. At the same time and from the same station, Train B heads south 65 mph. How far apart are the trains after 3 hours fo travel?
Answers
Answer:
The trains will be 435 miles apart
Explanation:
Distance covered by the two trains can be obtained by multiplying their speeds with the time frame under consideration - in this our case, it is 3hours.
For Train A
Distance covered = 80mph X 3 hours = 240miles
For train B
Distance covered = 65mph X 3 hours = 195 miles.
The total distance between the two trains after 3 hours will be
240 + 195 = 435 miles
does the magnitude of the physical quantity change with the change in system of unit
?
Answers
The magnitude of a physical quantity does not change when you change the system of units in which it is expressed. For example, the mass of an object is always the same, whether it is expressed in kilograms, grams, pounds, or any other unit of mass. The value of the mass simply changes when it is expressed in a different unit.
For example, if the mass of an object is expressed in kilograms, and you want to express it in grams, you would multiply the mass in kilograms by 1000 to convert it to grams. Similarly, if you want to express the mass in pounds, you would multiply the mass in kilograms by the conversion factor from kilograms to pounds.
In general, when you change the unit of a physical quantity, you need to multiply the value of the quantity by a conversion factor to convert it to the new unit. The magnitude of the physical quantity remains the same, but the value changes to reflect the different unit of measurement.
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Answer:
No, the magnitude of a quantity does not change when the system of units is changed.
Explanation:
When the system of units of a physical quantity is changed, its value is only expressed in a different type of system of units; that is, only its magnitude changes when expressed in a different system of units.
does the atmosphere filters the water in clouds?will give brainliest to correcct answer
Answers
Answer:
After a rain, they will eventually evaporate into water vapor. These airborne water molecules get carried back up into the sky to form clouds and then more rain (or snow or hail). ... So this process of evaporation can help to purify water of some of the big things it might be mixed in with.
true or false? Sound travels faster trough water than air
Answers
Answer:
true
Explanation:
Sound travels faster in water compared with air because water particles are packed in more densely.
A bottle of water has approximately 800 times the amount of particles as a bottle of air.