The power output is, 2800 watt. Power is defined as the rate of the work done.
What is force?Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
The power output is found as;
[tex]\rm P = \frac{W}{t} \\\\ P= \frac{F \times d }{t} \\\\ P= \frac{2800 \ N \times 80.0\ m}{8.0 \ sec} \\\\ P=2800 \ Watt[/tex]
Hence,the power output is, 2800 watt.
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Find the equivalent resistance of this circuit.
[tex]\huge{\boxed{\mathcal{♔︎Answer♔︎}}}[/tex]
200Ω
Explanation:
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What is resistance?
Resistance is the opposition offered by the electric current.
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What is electric current?
An electric current is the stream of flowing charge moving around a circuit.
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[tex] \textsf{ As here, we can see in the above diagram} \\ \\ \sf R_1 \: and \: R_2 \: both \: are \: in \: series. \\ \\ \textsf{ So their total resistance will be} \: R_s[/tex]
So for formula for series will be
[tex] \sf R_s = R_1 + R_2 \\ \\ \sf R_s = 100 + 200 \\ \\ \boxed {R_s = 300Ω}[/tex]
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[tex] \sf As \: you \: can \: also \: see \: here , \\ \\ \sf R_s \: is parallel \: with \: R_3 \\ \\ \sf So \: their \: total \: resistance \: R \: will \: be[/tex]
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[tex] \sf \frac{1}{R } = \frac{1}{R_3} + \frac{1}{R_s } \\ \\ \sf \frac{1}{R} = \frac{1}{600} + \frac{1}{300} \\ \\ \sf \frac{1}{R} = \frac{1 + 2}{600} \\ \\ \sf \frac{1}{R} = \frac{ \cancel3}{ \cancel{600} \: \: \small{200}} \\ \\ \sf \frac{1}{R} = \frac{1}{200} \\ \\ \boxed{ \tt{R = 200Ω}} [/tex]
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So the total resistance will be 200Ω.
Which of the following is an appropriate explanation for why thermal energy is a combination of the kinetic and potential energies of the molecules in a sample of matter?
a. Thermal Energy is based on how quickly the particles are moving (kinetic energy) and how much energy is stored in their electric fields (potential energy)
b. Thermal Energy is based on how much room the particles have to collide (kinetic energy) and how much energy they gain from those collisions (potential energy)
c. Thermal Energy is based on how quickly the particles are moving (kinetic energy) and how much freedom they have to move further (potential energy)
d. Thermal Energy is based on how tightly contained the particles are (kinetic energy) and how loose their electron structure is (potential energy)
The appropriate explanation for why thermal energy is a combination of the kinetic and potential energies is Thermal Energy is based on how quickly the particles are moving (kinetic energy) and how much energy is stored in their electric fields (potential energy)
What is thermal energy?Thermal energy refer to the heat energy generated from an object or particle when there is increase on temperature whose internal energy is in equilibrium
Potential energy is the energy stored in a body at rest.
Kinetic energy is the energy at work in a body in motion.
Therefore, The appropriate explanation for why thermal energy is a combination of the kinetic and potential energies is Thermal Energy is based on how quickly the particles are moving (kinetic energy) and how much energy is stored in their electric fields (potential energy)
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A circular loop has a radius of .3 meters a magnetic field has an initial strength of 2 tesla directed out of the page. over the course of 5 seconds the magnetic field is changed to 3 tesla directed out of the page calculate the induced voltage in the loop
Hi there!
We can use Faraday's Law to solve:
[tex]\epsilon = N\frac{d\Phi _B}{dt}[/tex]
ε = Induced emf (? V)
N = Number of loops (1 loop)
ΦB = Magnetic flux (Wb)
We know that:
[tex]\Phi_B = \oint B \cdot dA = B\cdot A[/tex]
Since the area of the loop remains the same, we can take this out of the time derivative.
We get:
[tex]\frac{d\Phi_B}{dt} = A * \frac{dB}{dt}[/tex]
Also, since N = 1, we can now rewrite the equation for the induced emf as:
[tex]\epsilon = A * \frac{dB}{dt}[/tex]
dB/dt is equivalent to the change in the magnetic field with respect to time:
[tex]\Delta B = \frac{B_f - B_i}{\Delta t}\\\\\Delta B = \frac{3 - 2}{5} = 0.2 \frac{T}{s}[/tex]
Now, substitute this value into the equation for induced emf:
[tex]\epsilon = \pi (0.3^2) * (0.2) = \boxed{0.0565 V}[/tex]
**Also, since the magnetic field INCREASED out of the page, this change in magnetic flux will create an induced CLOCKWISE current that produces a magnetic field into the page in order to oppose the increase in magnetic flux OUT of the page.
What is the amplitude of the wave?
Answer:
1 meter for this wave
Explanation:
Amplitude is the height of the wave from the midline to the crest
As a minimum requirement, a boat that is less than 26 feet in length with an installed fuel tank must have what type of fire extinguisher onboard?.
As a minimum requirement, a boat that is less than 26 feet in length with an installed fuel tank must have 5-B fire extinguisher.
What is fire extinguisher?
A fire extinguisher is a fire protection device used to terminate or control small fires, often in emergency situations.
Minimum requirement for fire extinguisher in boatsIf your boat is less than 26 feet, you need one 5-B fire extinguisher on board.
Thus, as a minimum requirement, a boat that is less than 26 feet in length with an installed fuel tank must have 5-B fire extinguisher.
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physics 9
physics geniuses where r u need help!!!
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pls also check other questions!
A transformer uses 91 V supply to operate 13 V device, then the current in the primary coil is 0.27A.
What is transformer?A transformer is an electrical device which is involved in transferring electric energy from one AC circuit to another, either stepping up or down.
As, from the ohm's law, voltage is directly proportional to the current flowing through the coil.
I₂ / I₁ = V₂ / V₁
The current from the transformer I₁ is 1.9A, the voltage supply V₁ = 91V and the voltage to operate is 13 V, then the current through the primary coil is
I₂ = (91 / 13 ) x 1.9
I₂ = 0.27A
Thus, the current from the primary coil is 0.27A.
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A ________ results when the outward-directed gas pressure (created by thermal nuclear energy) is balanced in a stable relationship with inward-directed gravitational force.
When the outward-directed gas pressure (created by thermal nuclear energy) is balanced in a stable relationship with inward-directed gravitational force results in main sequence star.
What is pressure ?The pressure is the force exerted per unit area.
A main sequence star fuses hydrogen in its core and has balanced outward pressure from core nuclear fusion and gravitational forces will be pushing inward.
When the outward-directed gas pressure is balanced in a stable relationship with inward-directed gravitational force results in main sequence star.
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hydraulic lift has an input cylinder 4cm indiameter and an out put cylinder 16cm in
diameter.find the force exerted by the out put pistion when aforce aforce Newton if applied to the input pistion
The force exerted by the output piston will be 20 N. The pressure exerted on the both end is equal.
What is pressure?The force applied perpendicular to the surface of an item per unit area across which that force is spread is known as pressure.
It is denoted by P. The pressure relative to the ambient pressure is known as gauge pressure.
The area of the input cylinder is found as;
A₁=πR₁²
A₁=π(2)²
A₂=4π
The area of the output cylinder is found as;
A₂=πR₂²
A₂=π(4)²
A₁=16π
The pressure exerted on the both end is equal ;]
P₁=P₂
F₁A₁=F₂A₂
80 ×4 π==F₂×16 π
F₂=20 N.
Hence,the force exerted by the output piston will be 20 N.
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our sun is a star that is fueled by a specific type of nuclear reaction. which type of nuclear reaction is this?
Answer:
the fusion of hydrogen nuclei or in other words "nuclear fusion"
Explanation:
What are stars made of?
Answer: The churning nuclear forges at the centres of stars produce light and heat, creating stars.
Explanation:
Answer: Hyrdrogen and Helium.
Explanation:
Can someone please answer this, ill give you brainliest Would be very appreciated.
Answer:
4.2 into the atmosphere
Explanation:
Carbon movement into atmosphere :
(8.3 ± 0.4) + (1.0 ± 0.5)Let's avoid the variability 8.3 + 1.09.3Carbon movement in the sinks :
(2.6 ± 0.9) + (2.5 ± 0.5)2.6 + 2.55.1Net Carbon Movement :
9.3 - 5.14.2 into the atmosphereCan someone please answer this, ill give you brainliest Would be very appreciated.
Answer:
False
Explanation:
Solid water (ice) has a lesser density than liquid water. Hence, the statement is false.
Answer:
False
Explanation:
Let's know the relationship
Density=Mass/VolumeDensity is indirectly proportional to volume
If volume is less density is more and if volume is more density is less.
But Density also depends on temperature
Higher the temperature higher the density.
Liquid stage of water has higher temperature than solid .Liquid has higher density than solid .
What the name for the phenomenon of inducing voltage by changing the magnetic field around a conductor?
Electromagic
Electromagnetic Induction
Electrostatics
Van de Graaff generation
The phenomenon of inducing voltage by changing the magnetic field around a conductor will be Electromagnetic Induction. Option B is correct.
What is the Faraday law of electromagnetic induction?According to Faraday's law of electromagnetic induction, the rate of change of magnetic flux link with the coil is responsible for generating emf in the coil to result in the flow of amount of current .
So in order to increase the current, we need to increase the EMF;
so we can increase it by;
1) Increasing the number of turns
2) Increase the area of the loop
3) By moving the magnet faster
Hence, option B is correct.
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ejbsjca bdsj dbcsc j ecsabkfskbj jcbaskjbb
Sorry but I can't help you cuz the words you use makes no sens if you are going to ask a question pls do and dont joke around about it thank you very much and have a great day! ^^
two cats are sitting on a 30 m hill. one cat has a mass of 4 kg and the other 6 kg. which cat has greater potential energy
Answer:
The 6 kg cat.
Explanation:
The six killogram cat because accelaratoin due to gravity is more for havy objects then smaller objects. (or lighter I suppose) ;)
Answer:
the cat with a mass of 6 kg
Explanation:
Potential Energy : Weight x Height
PE of cat w/ mass 4 kg :
PE = 4 x 10 x 30PE = 40 x 30PE = 1200 JPE of cat w/ mass 6 kg :
PE = 6 x 10 x 30PE = 60 x 30PE = 1800 JClearly, the cat with a mass of 6 kg has greater potential energy.
A string with a natural frequency of 15 Hz will likely show
resonance at which frequencies: (could be more than one)
A) 20 Hz; B) 30 Hz; C) 40 Hz; D) 50 Hz; E) 60 Hz
What other frequencies would show resonance?
Frequencies would show resonance will be 30 Hz,45 Hz and 60 Hz. Option B and E are correct.
What is resonance frequency?Mechanical systems and charged particles all have a frequency that they vibrate at. this frequency is referred to as the resonance frequency or natural frequency.
When the matching vibrations of another item enhance the amplitude of an object's oscillations, this is known as resonance.
15 Hz is the fundamental frequency of the string.
Higher frequencies, such as the first overtone, second overtone, third overtone, and so on, must be used to cause the string to vibrate in a resonant manner.
F₁ = 2F₀ = 2 x 15 = 30 Hz is the initial overtone.
F₂ = 3F₀ = 3 x 15 = 45 Hz is the second overtone.
F₃ = 4F₀ = 4 × 15 = 60 Hz is the third overtone.
Hence,frequencies would show resonance will be 30 Hz,45 Hz and 60 Hz. Option B and E are correct.
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help me please.....●_●
Answer:
mg i would say an atomic number of 12 the um i would say stands for micrometer
Explanation:
Can someone please answer this, ill give you brainliest Would be very appreciated.
Answer:
cohesive properties
Explanation:
The property of cohesion allows liquid water to have no tension on the surface.
Answer:
Cohesive properties
Explanation:
Cohesive properties denotes to attraction of particles on surface like sticking with each otherWater has higher cohesive properties so no surface tensionA proton of energy 900gev collides with a stationary proton. Find the available energy ea. The rest energy of the proton is 938mev
The total energy available during the collision of the two protons is determined as 900,938 MeV.
Total energy available during the collision
Based on the principle of conservation of energy, the total energy of the two protons during the collision will be conserved.
Available energy = Er + K
Where;
Er is the rest energyK is the kinetic energyAvailable energy = 938 MeV + 900 GeV
Available energy = 938 Mev + 900 x 10³ MeV
Available energy = 938 MeV + 900,000 MeV
Available energy = 900,938 MeV
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Which year was pluto no longer considered a planet?.
Help please i need to submit it noww
[tex]\text{Given that,}\\\\m_1 = m_2= 15~ kg\\\\r = 35~ m \\\\G = 6.67 \times 10^{-19} Nm^2 kg^{-2}\\\\\text{Gravitational force,}\\\\F_g = \dfrac{Gm_1 m_2} {r^2 }\\\\\\~~~~=\dfrac{6.67 \times 10^{-19} \times 15 \times 15}{35^2}\\\\\\~~~~=1.2252 \times 10^{-19}~N[/tex]
Suppose you have a scarf that appears red when you are outside on a sunny day. Will the scarf appear red if you view it under different colors of light?
Answer:
no
actually no one weres the scarf in sunny ʕ•ε•ʔ
Explanation:
The colours we see are the wavelengths that are reflected or transmitted. For example, a red shirt looks red because the dye molecules in the fabric have absorbed the wavelengths of light from
which of the following do plants need for photosynthesis?
Answer:
They need carbon, sunlight and water.
Explanation:
what is the name of the units that we measure force in
Answer:
Newton (N)
Explanation:
Newtons are used to measure force.
What are the criterions that need for mechanical work?
Mechanical work is the work done by a force on a mechanical body like machines .
When some mechanical force is applied on the machine the machine does some work which is mechanical work
It's a scaler quantity and have units as Joules(J)
The main criterion is mechanical energy,Force , Displacement (Not mandatory)
What's the difference between an electrician and an electrical engineer
The difference between an electrician and an electrical engineer is the way of working towards a common electrical project.
What is an engineer?An engineer is a person who performs a function like designing, building, or maintaining engines, machines, or structures.
Electrical engineers and electricians both commonly involved in the process of creating and installing critical electrical systems.
An electrical engineer can design electronics and is familiar with the working of electrical parts.
An electrician is much more like a builder. They take the designs from electrical engineer and follow them to create, repair, or revise actual electrical systems.
Thus, the difference between an electrician and an electrical engineer is the way of working towards a common electrical project.
Learn more about an engineer.
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As a aider how do you prepare for an emergency?
Answer:
Assess the situation quickly and calmly. Safety: check whether you or the casualty are in any danger. ...
Protect yourself and them from any danger. ...
Prevent infection between you and them. ...
Comfort and reassure. ...
Assess the casualty and give first aid treatment. ...
Arrange for help if needed
Explanation:
Having a good range of motion is super important because that is what allows you to ________________.
A.
do different activities
B.
run farther
C.
lose more weight
D.
balance
What is the hubble classification for a spiral galaxy with a small nuclear bulge and wide loosely wound spiral arms?.
Hubble classification for a spiral galaxy with a small nuclear bulge and wide loosely wound spiral arms is a, b and c.
What is the galaxy?Galaxy is the collection of stars, interstellar gases, dust and stone in the large space of universe.
Hubble classified these galaxies by referring them as SB galaxies with subclasses a, b, and c. They are just like the normal spirals. The spiral arms in barred spirals don't actually but appear to originate at the ends of the bar.
Hence, Hubble classification for a spiral galaxy with a small nuclear bulge and wide loosely wound spiral arms is a, b and c.
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HELP I'LL GIVE BRAINLIEST!!! A mosquito flaps its wings 800 times per second, which produces the annoying 800 Hz buzz. How far does the sound travel between wing beats? The speed of sound in air is 340 m/s. Answer in units of m. :)
Answer:
Explanation:
The distance traveled by the sound wave between the beats of mosquito flapping its wing is its wavelength. Since it is defined as the distance traveled by a periodic disturbance that propagates in a cycle, it is shown as:
λ = v/f
λ=340m/800Hz = 0.425m.
Pretty sure this is the answer, hope this helps!
