What factors determine power

Answers

Answer 1

The factors that are used to determine power are: Voltage, Current, and the Power Factor.

Related Questions

If a rock weighing 2,200 N is dropped from a height of 15 m, what is its KE just before it hits the ground? Remember, weight is measured in newtons (N), and is equal to mass times gravity.

A. 0 J
B. 2,224 J
C. 147 J
D. 33,000 J

Answers

This is a question conservation of energy. That is;
Potential energy = Kinetic energy

mgh = 1/2*mv^2 = KE

Therefore,
KE = mgh = (2200/9.81)*9.81*15 = 2200*15 = 33000 J

The correct answer is D.

lion and leopard are two of Africa's large cat ____.

Answers

The fill in blank would be breeds.
Lions and leopards are both cats, but they are different kinds.

I hope this helps! Let me know if you need further explanation.
~Brooke❤️

A 5.3 kg cat and a 2.5 kg bowl of tuna fish are at opposite ends of the 4.0-m-long seesaw. how far to the left of the pivot must a 3.7 kg cat stand to keep the seesaw balanced?

Answers

Moment about the pivot must be equal for the seesaw to balance. Initially, the first cat and the bowl are at 2 m from the pivot.

The moment due to cat = 5.3*2 = 10.6 kg.m
The moment due to bowl = 2.5*2 = 5 kg.m
The unbalanced moment = 10.6 - 5 = 5.6 kg.m

Therefore, the 3.7 kg cat should stand at a distance x from the pivot in left to balance the 5.6 kg.m.
That is,
3.7*x = 5.6 => x = 5.6/3.7 = 1.5134 m to the left (on the side of the bowl)

Final answer:

To keep the seesaw balanced, the 3.7 kg cat must stand 2.06 meters to the left of the pivot.

Explanation:

To keep the seesaw balanced, the torques (rotational forces) on both sides of the pivot must be equal. The torque is given by the product of the mass and the distance from the pivot. In this case, the 5.3 kg cat and the 2.5 kg bowl of tuna fish create a torque on one side, while the 3.7 kg cat creates a torque on the other side. Let's denote the distance from the pivot to the 5.3 kg cat as x:

Torque on one side = 5.3 kg * x

Torque on the other side = 2.5 kg * 1.5 m + 3.7 kg * (4 m - x)

Setting these two torques equal to each other and solving for x:

5.3 kg * x = 2.5 kg * 1.5 m + 3.7 kg * (4 m - x)

Simplifying the equation:

5.3x = 3.75 + 14.8 - 3.7x

9x = 18.55

x = 2.06 meters

Therefore, the 3.7 kg cat must stand 2.06 meters to the left of the pivot to keep the seesaw balanced.

Learn more about seesaw balance here:

https://brainly.com/question/33817733

#SPJ3

In the visible spectrum, red light has the lowest frequency and violet light has the highest. List the following colors in order of increasing energy. green blue yellow orange A) blue, green, yellow, orange B) orange, yellow, green, blue C) yellow, orange, blue, green D) green, blue, orange,w

Answers

The correct answer is:
B) orange, yellow, green, blue

the energy of the photons of light is directly proportional to the frequency of the light. This means that the lower the frequency, the lower the energy, and the higher the frequency, the greater the energy.

Therefore, the order in increasing energy is exactly the same as the order in increasing frequency, which is:

orange, yellow, green, blue

The answer is b !!!!!!

Its C Disposal of radioactive waste is a major concern in nuclear power production. Which method of disposal is least dangerous?

Answers

Least dangerous i could be wrong but feeding it to racoons.

A relatively long lived excited state of an atom has a lifetime of 2.05 ms. what is the minimum uncertainty (in ev) in its energy?

Answers

We can solve the exercise by using Heisenberg's principle. In its energy-time version, Heisenberg principle states that the product between the uncertainty on the energy and on the time is larger than:
[tex]\Delta E \Delta t \ \textgreater \ \frac{h}{4 \pi} [/tex] (1)
where [tex]\Delta E, \Delta t[/tex] are the uncertainties on the energy and on the time, and h is the Planck constant.

The lifetime of the particle is 2.05 ms, so we can assume the maximum uncertainty on the time corresponds to the lifetime itself:
[tex]\Delta t = 2.05 ms = 2.05 \cdot 10^{-3} s[/tex]
And so the minimum uncertainty on the energy can be found by using (1):
[tex]\Delta E \ \textgreater \ \frac{h}{4 \pi \Delta t}= \frac{6.6 \cdot 10^{-34} Js}{4 \pi (2.05 \cdot 10^{-3} s)}= 2.56 \cdot 10^{-32} J[/tex]

Keeping in mind that [tex]1 eV = 1.6 \cdot 10^{-19}J[/tex], we can convert the energy uncertainty into electronvolts:
[tex]\Delta E = 2.56 \cdot 10^{-32} J : 1,6 \cdot 10^{-19} J/eV = 1,6 \cdot 10^{-13} eV[/tex]

Jupiter _____.

may have prevented asteroids from forming a planet
has a large gravitational field which can capture small comets
is responsible for creating most known meteors and meteoroids
releases radiation which warms comets and creates a comet tail

Answers

It's a because i chose this and got it right

Answer:

Jupiter may have prevented asteroids from forming a planet

Explanation:

How can medical assistant use the knowledge of the nervous systems to care for the patient with Parkinson’s and other neurological disorders

Answers

Having a wide knowledge of the nervous system and the of how the brain’s different parts collaborate to organize all our movements, senses thoughts, and emotions enable the medical assistants to handle the cognitive and behavioral complications in the patient. It helps them to deal with wounds and falls since the nervous disorder generally affects cognition and movement. Having a wide knowledge of how the nerve impulses are transmitted from the nervous system to the brain, when it is then converted into feelings such as pleasure, pain, cold or hot, the medical assistant will be able to take response immediately on the patient prior they start complaining of sensory indications, such as discomfort, irritating, and unresponsiveness.

The atmosphere _________ most of the incoming visual radiation.
A. Absorbs
B. Transmits
C. Reflects

Answers

The answer is Transmit. The atmosphere transmit most of the incoming visual radiation.

Answer:

Absorbs

Explanation:

When the solar radiation or visual radiation arrives on Earth's atmosphere, most of the radiation is absorbed.

A part is reflected and transmitted back but major portion is absorbed by the atmosphere.

This absorb radiation helps to keep the Earth warm and thus maintaining the temperature even in Night time.

A calorie is the measurement of ____ required to raise a 1 gram of water 1 degree celsius.

Answers

Calorie is a unit of energy, it is used above all in the area of health to measure the energy content of food.

Therefore the statement must be completed in the following way:

A calorie is the measure of heat required to raise 1 gram of water 1 centigrade.

A crate of mass 5 kg slides along a horizontal surface with coefficient of kinetic friction of 0.3. the force is pulled by a rope that makes an angle of 30o above the horizontal. the tension in the rope is 150 n. what is the power supplied by the rope to the crate at an instant where the box is moving at a speed of 3 m/s in the direction the rope is pulling it?

Answers

See attachment file below.
The power is 412W
(I'm not so sure of the answer. Can u please confirm it! Thank you.)

Hope it helped!

A rod made from insulating material carries a net charge, while a copper sphere is neutral. The rod and the sphere do not touch. Is it possible for the rod and the sphere to (a) attract one another and (b) repel one another? Explain.

Answers

As the charged insulating rod approaches the sphere (not in contact), free electrons in the sphere move. If the rod is negatively charged, free electrons move to the side of the sphere opposite the side with the rod. If the rod is positively charged, the free electron moves to the side of the sphere with the rod. In either case, the region of the sphere near the rod acquires a charge with the sign opposite to that on the rod.

a. Since opposedly charged objects always attract each other, the rod and ball always experience mutual attractive forces.

b. Since the side of the sphere near the bar always has the opposite charge to the charge of the rod, the rod and the sphere always attract each other. They do not repel each other.

Answer:

Sphere R must be negative and Sphere S must be positive or neutral.

Explanation:

Castle Learning. Also the Rod diagram shows electrons in it and we know like charges repel and opposites attract, so the rod must repel Sphere R because it is negative and attract to Sphere S because it is the opposite.

The sun's electromagnetic radiation is produced by

Answers

Final answer:

The sun produces electromagnetic radiation through the movement of electrically charged particles, resulting in a spectrum of radiation that includes harmful UV rays and visible light. This radiation is fundamental for processes like photosynthesis and solar energy generation.

Explanation:

The sun's energy is emitted in the form of electromagnetic radiation, which encompasses a wide array of wavelengths, each with its characteristic energy. This radiation is produced by electrically charged particles undergoing transitions, such as the fusion reactions occurring in the sun's core, which results in the release of energy as photons. These photons travel through space and carry energy, momentum, and when interacting with matter, can exert force.

Among the types of electromagnetic radiation emitted from the sun, we find visible light, ultraviolet (UV) rays, X-rays, microwaves, and radio waves. UV rays have shorter wavelengths than visible light and are more energetic, and they are partially absorbed by ozone molecules in the Earth's atmosphere, which helps to protect living organisms from its potentially harmful effects.

Overall, the sun produces a full spectrum of electromagnetic radiation, measurable by scientists on what is known as the electromagnetic spectrum. The entirety of this spectrum is essential for various processes on Earth, from photosynthesis which supports life to solar panels that harness sunlight for energy.

How many significant digits are in the measurement 50.003010 nm?

Answers

Answer:

Significant digits = 8

Explanation:

Significant digits in a number which is more than 1 and if the number if having decimal in it then as per the rule all the digits present in the number must be significant digit

for an example we will say

1.00 = 3 significant figures

so in this way for all such kind of numbers we have to count all digits in it

so here given number is more than 1 and it contains the decimal in it

so we will say

50.003010 nm = 8 significant figures

Answer:

There are 15 significant digits

Explanation:

50.00301 nm = 0.0000000500301

Counting the figures makes it 15

A battery is the power source for what type of current?
A. AC
B.BC
C.DC
D.All types of current

Answers

A battery is the power source for DC. (C)

You COULD use a battery to get AC, but you'd need some electronics,
to take the DC from the battery and use it to generate AC.

Answer:

C. DC

Explanation:

A battery is the power source for DC type of current. A battery is a source of constant potential difference that produces a constant current unlike in AC source where the voltage and hence the current changes its polarity continuously.Hence, the current produced by battery is direct current and not Alternating current.

A circuit has a current of 1.2 A. If the voltage decreases to one third of its original amount while the resistance remains constant, what will be the resulting current?

Answers

When resistance is constant, current is proportional to voltage. When 1/3 the voltage is applied, 1/3 the current will result.

(1/3)*(1.2 A) = 0.4 A

The resulting current will be 0.4 A.

As part of an exercise program, a woman walks south at a speed of 2.00 m/s for 60.0 minutes. she then turns around and walks north a distance 3000 m in 25.0 minutes (a) what is the woman's average velocity during her entire motion?
a.0.824 m/s south
b.1.93 m/s south
c.2.00 m/s south
d.1.79 m/s south
e.800 m/s south

Answers

The woman's average velocity can be calculated by dividing the total distance covered during the motion by the total time of the motion.

In the first part of the motion, the woman moved south with speed v1=2.00 m/s for a time of
[tex]t_1 = 60.0 m = 3600 s[/tex]
therefore the distance she covered is
[tex]S=v_1 t_1 = (2.00 m/s)(3600 s)=7200 m[/tex]

In the second part of the motion, she moved north for [tex]S_2 = 3000 m[/tex] in a time of
[tex]t_2 = 25.0 m = 1500 s[/tex]

Since she moved in the opposite direction, the total distance covered is the difference between S1 and S2:
[tex]S=S_1 - S_2 = 7200 m - 3000 m = 4200 m[/tex] (south)

While the total time of the motion is
[tex]t=t_1 + t_2 = 3600 s + 1500 s =5100 s[/tex]

Therefore, the woman's average velocity is
[tex]v= \frac{S}{t}= \frac{4200 m}{5100 s}=0.824 m/s [/tex] (south)

and the correct answer is A).

Final answer:

The woman's average velocity during her entire motion is approximately 1.79 m/s south.

Explanation:

To find the woman's average velocity, we need to calculate the total displacement and divide it by the total time taken. Southward motion is taken as negative, and northward motion is taken as positive. Let's calculate:

Southward motion: displacement = -2.00 m/s × 60.0 min = -120.00 mNorthward motion: displacement = 3000 mTotal displacement = -120.00 m + 3000 m = 2880.00 mTotal time = 60.0 min + 25.0 min = 85.0 min

Therefore, the woman's average velocity is:

average velocity = total displacement / total time

average velocity = 2880.00 m / 85.0 min

average velocity ≈ 33.88 m/min

To convert to m/s, we divide by 60:

average velocity ≈ 33.88 m/min ÷ 60 ≈ 0.5647 m/s

Since the woman was walking southward, the average velocity is negative. So the correct answer is Option d. 1.79 m/s south.

Learn more about Average Velocity here:

https://brainly.com/question/1375440

#SPJ3

What waves shown on the electromagnetic spectrum disturb the medium it passes through at answer?

Answers

Electromagnetic waves do not require material medium for propagation. Radiowaves have the longest wavelength but the least frequency.
Gamma ray has the shortest wavelength but the highest frequency.

The gamma rays and x-rays due to their high frequency, they can disturb the medium they pass through. They have high energy that can cause damage to the matter the come across.

When x-rays of wavelength 0.312 nm are directed at a crystalline sample, the smallest bragg angle for a certain family of reflecting planes is found to be 28.5°. within the sample, the atoms lie on a simple cubic lattice, a 2-dimensional view of which is shown to the right. assuming that the constructive interference observed is due to the pair of diagonal planes indicated by the two dashed lines, find the distance a between neighboring atoms?

Answers

The equation for bragg's law is nλ=2dsinθ. The smallest angle is when n=1 and we are told the angle is 28.5. d in our equation is the distance between atoms. So:

(1)(0.312*10^-9)=2dsin(28.5)

Solving for d we get

d=3.26925*10^-10m

Which property of light remains unchanged when it enters a different medium?

Answers

The FREQUENCY of light remains unchanged once it leaves the source.

frequency d is the anwsewr

Two waves have the same speed. the first has twice the frequency of the second. compare the wavelength of the two waves. 1. the second has one third the wavelength of the first. 2. the first has half the wavelength of the second. 3. the first has one third the wavelength of the second. 4. the second has half the wavelength of the first. 5. they have the s

Answers

The basic relationship between frequency, wavelength and speed of a wave is
[tex]\lambda= \frac{v}{f} [/tex] (1)
where
[tex]\lambda[/tex] is the wavelength
v is the wave speed
f is the frequency

The problem says the two waves have same speed, so [tex]v_1 = v_2[/tex], and that the first wave has twice the frequency of the second wave, so
[tex]f_1 = 2 f_2[/tex]
If we use eq,(1), we can compare the two wavelengths
[tex]\lambda_1 = \frac{v_1}{f_1}= \frac{v_2}{2f_2}= \frac{1}{2} \frac{v_2}{f_2} = \frac{1}{2} \lambda_2 [/tex]
Where in the last step we used [tex]\lambda_2 = \frac{v_2}{f_2} [/tex]. Therefore, the first wave has half the wavelength of the second wave, so the correct option is option 2).

Reflection is the bouncing of light rays off of a surface. Which situation is NOT an example of reflection?
A) looking at yourself in a mirror
B) focusing light through a camera lens
C) seeing an image of yourself in a still lake
D) looking at your teacher at the front of the class

Answers

B) Focusing light through a camera lens.

In each of the other options, light rays bouncing off a surface produce an image.

The answer is B, Focusing light through a camera lens.s

In the past, how did people use the systematic movement of celestial bodies? Select all that apply.

making agricultural decisions
shipping navigation
predicting the future
spiritual and religious practices
tracking storms

Answers

The answer is actually a,b, and d
Brainliest?

In past, people used the systematic movement of celestial bodies for making agricultural decisions, shipping navigation and for spiritual and religious practices.

Answer: Options 1, 2, and 4

Explanation:

The observation of systematic movement of celestial bodies comes under the field of Astrometry. The celestial mechanics which defines are the movement of celestial bodies is also a kind of Astrometry.

The celestial mechanics is used by the people in past to help in navigation during ship journey. Even the astrometry will help in predicting the seasons to be coming which will help in making agricultural decisions.

In astrology, the position of celestial bodies help in deciding the time for spiritual and religious practices. So, in ancient days, people used the systematic movement of celestial bodies in naked eyes to decide these.

If 1495 j of heat is needed to raise the temperature of a 351 g sample of a metal from 55.0°c to 66.0°c, what is the specific heat capacity of the metal?

Answers

The amount of heat needed to increase the temperature of a substance by [tex]\Delta T[/tex] is given by
[tex]Q= mC_s \Delta T[/tex]
where m is the mass of the substance, Cs is its specific heat capacity and [tex]\Delta T[/tex] is the increase of temperature.

If we re-arrange the formula, we get
[tex]C_s = \frac{Q}{m \Delta T} [/tex]
And if we plug the data of the problem into the equation, we can find the specific heat capacity of the substance:
[tex]C_s = \frac{1495 J}{(351 g)(66.0^{\circ}C-55.0^{\circ}C)}=0.39 J/g^{\circ}C [/tex]

sorry i don't know the answer i'm really sorry

What is the wavelength of a photon whose energy is twice that of a photon with a 622 nm wavelength?

Answers

The frequency of the [tex]\lambda_2 = 622 nm = 622 \cdot 10^{-9} m[/tex] wavelength photon is given by
[tex]f_2 = \frac{c}{\lambda_2}= \frac{3 \cdot 10^8 m/s}{622 \cdot 10^{-9} m}=4.82 \cdot 10^{14} Hz [/tex]
where c is the speed of light.

The energy of this photon is
[tex]E_2=hf_2 = (6.6 \cdot 10^{-34}Js)(4.82 \cdot 10^{14}Hz)=3.18 \cdot 10^{-19} J[/tex]
where h is the Planck constant.

The energy of the first photon is twice that of the second photon, so
[tex]E_1 = 2 E_2 = 2 \cdot 3.18 \cdot 10^{-19}J =6.36 \cdot 10^{-19} J[/tex]

And so now by using again the relationship betwen energy and frequency, we can find the frequency of the first photon:
[tex]f_1 = \frac{E_1}{h}= \frac{6.36 \cdot 10^{-19} J}{6.6 \cdot 10^{-34}Js}=9.64 \cdot 10^{14}Hz [/tex]

and its wavelength is
[tex]\lambda_1 = \frac{c}{f_1}= \frac{3 \cdot 10^8 m/s}{9.64 \cdot 10^{14}Hz} =3.11 \cdot 10^{-7}m = 311 nm [/tex]
So, we see that the wavelength of the first photon is exactly half of the wavelength of the second photon (622 nm).

The polar ice caps of mars is believed to consist mostly of

Answers

Solid Carbon Dioxide

A boat is moving at 3 m/s and increases its speed at 2 m/s2. How fast is it moving after it travels 10 m from the point it begins to speed up?

Answers

The boat is moving by uniformly accelerated motion, with initial speed
[tex]v_i = 3 m/s[/tex]
constant acceleration of
[tex]a=2 m/s^2[/tex]
and it covers a distance of
[tex]S=10 m[/tex]

So we can use the following relationship to find the final speed, [tex]v_f[/tex]:
[tex]v_f^2 - v_i^2 = 2aS[/tex]
[tex]v_f = \sqrt{v_i^2 + 2aS}= \sqrt{(3 m/s)^2 +2(2 m/s^2)(10 m)} = 7m/s [/tex]

The lengthening of a transmitted signal's wavelength and/or a decrease in its frequency, which indicates that the object is moving away from the observer, is called the

Answers

Both the effects (lengthening of the transmitted signal's wavelength and decrease in its frequency) indicates that the object is moving away from the observer, and this phenomenon is called Doppler effect.

In fact, when the object is moving away from the observer, the relative distance between two consecutive crests of the wave emitted by the object increases to the observer eyes, since he's moving away. This means that the wavelength appears larger, and since the frequency is inversely proportional to the wavelength, the frequency appears smaller.

The red shift... Hope it helps!

A wave has a velocity of 24 m/s and a period of 3.0 s. Calculate the wavelength of the wave

Answers

The applicable expressions is;
Wavelength = Velocity/Frequency
Where

Frequency = 1/Period = 1/3

Therefore,

Wavelength of the wave = 24/(1/3) = 24*3 = 72 m

Answer:

72 m

Explanation:

The period of a wave is the amount of time it takes a wave complete one full cycle. The period is the inverse of the frequency.

Given;

Wave Velocity V = 24 m/s

Period T = 3.0s

Frequency of the wave F = 1/T= 1/3

Wavelength W= ?

Wavelength is the distance covered by a wave in a complete cycle i.e from one crest to another, or from one trough to another.

W = V/F = VT

W = 24/ (1/3)

W = 24 × 3

W = 72 m

You have just completed a wonderful meal of pasta and crusty bread followed by a huge piece of chocolate cake. This carbohydrate-rich meal has lead to the release of large amounts of sugar into your bloodstream. What is necessary to address the change in blood sugar level?

Answers

Your pancreas must secrete a large amount of insulin, to get all that glucose into your cells. If it just stays in your blood for hours and hours, it 'cooks' your kidneys and your eyes, among other internal organs, and they fail sooner than they should.

This is a description of Diabetes ... the production of not enough insulin (Type-2) or none at all (Type-1).

There's no cure. The treatment is:

-- be reasonable about the carbs you take in;

-- get regular exercise;

-- if you still have high levels of glucose in your blood, you'll have to start regular medication (pills) or insulin injections.

Other Questions

Environmental concerns are important, but which country has offers the least amount of help to its environment?ChinaSouth KoreaNorth KoreaJapan Use the graph below to answer the question that follows: cosine graph with points at 0, negative 1 and pi over 3, 0 and pi, 3 and 5 pi over 3, 0 and 2 pi, negative 1 What are the amplitude, period, and midline of the function?Amplitude: 4; period: ; midline: y = 2 Amplitude: 2; period: 2; midline: y = 1 Amplitude: 4; period: 2; midline: y = 1 Amplitude: 2; period: ; midline: y = 2 In the united states, which ethnic group is most likely to accept and support single parents? Particles of charge +75, +48, and -85C are placed in a line. The center one is 0.35 m from each of the others. Calculate the net force on each charge due to the other two. Select the correct answer.Which sentence correctly describes a step to obtain a tourist visa to travel to the United States?Hay que pedir una cita en el centro de llamadas de la embajada de Estados Unidos.Hay que asistir a una entrevista personal en la catedral.Hay que saludar con un beso en la cara.Hay que comer comida peruana como el ceviche o el pollo a la brasa. The probability that it will snow on Friday is 70%, and the probability that it will snow on Saturday is 50%. What is the probability that it will snow on both days? Express your answer as a decimal rounded to the nearest hundredth. What is the probability that it will not snow on either day? Express your answer as a decimal rounded to the nearest hundredth. For a recent project, a teacher purchased 250 pieces of red construction paper and 114 pieces of blue construction paper. what is the ratio of red to blue? select one:a. 57:125b. 125:57c. 125:182d. 182:125 Find the unknown. = (65 3) + 9 Briefly explain how the Civil War changed the lives of individuals from one of the following groups.WomenAfrican AmericansNative Americans What was the lasting effect of the marbury v. madison (1803) decision? Two atoms are isotopes of the same element. Which of the following should be the same for these two atoms? A.The number of molecules B.The number of protons C.The number of neutrons D.The number of electrons Can't see it, remarked Rainsford, trying to peer through the dank tropical night that was palpable as it pressed its thick warm blackness in upon the yacht. In this passage, the word palpable means A.thick and humid. B.rhythmic. C.eerie and frightening. D.something one can touch. Mary applies for a job with northern states oil company. northern states does not hire her because of her ethnicity, or national origin. this is About how many total miles did us troops travel on the bataan death march Emily is a menace to all those around her. she has rapid mood swings which are punctuated by uncontrollable bouts of aggression. she has cuts on her arms and legs owing to self-inflicted injuries. this has forced her parents to limit her interaction with others. they find it hard to control her themselves. according to the "4 ds" of determining whether something is a mental disorder, what does this reveal about emily's behavior? simplify: -7/3 - (-61/6) It costs $5.75 to enter an arcade and $0.50 to play an arcade game. You have $7.25. Write an equation that represents the number g of games you can play. Would someone please help me with my French? Thank you!Multiple Choice6: a) souvenir. b) se souvient c) se souvenit d) se souvenir9: a) de b)15: a) suisse. b) franaise c) amricaine Can anybody help me with this ? Object A has a density of 10 g/cm3 and a mass of 9 g. Object B has a density of 10 g/cm3 and a mass of 4 g. Which object has a greater volume and by how much?