Mariana is making a large pot of pasta. She mixes together
5
1
8
pounds of pasta,
6
pounds of sauce, and
4
7
8
pounds of onions.
To find out how many
1
2
pound servings can she make, which two equations would you need?
A.
5
1
8
+
4
7
8
+
6
=
16
B.
5
1
8
+
4
7
8
−
6
=
4
C.
4
÷
1
2
=
8
D.
16
÷
1
2
=
32
E.
16
×
1
2
=
8
and the A= D 16÷1/2 =8 and A 5 1/8 + 4 7/8 + 6 = 16
Answers
The two equations that would be needed to find out how many 1/2 pound servings Mariana can make are A and D:
A. 5 1/8 + 4 7/8 + 6 = 16
D. 16 ÷ 1/2 = 32Equation A adds up the total weight of the pasta, sauce, and onions to find the total weight of the pot of pasta. Equation D divides the total weight by 1/2 pound to find the number of 1/2 pound servings that can be made.Using equation A, we get 16 pounds of pasta mixture in total. Dividing this by 1/2 pound per serving using equation D, we get 32 servings in total.Therefore, Mariana can make 32 servings of 1/2 pound each from her pot of pasta
Related Questions
A can of tuna, starting from rest, is dropped off a building. If it is only being pulled down by gravity (-9.8 m/s2) and it hits the ground 3.2s later, how far (Δx) did it drop?
Answers
Answer:
50.23mExplanation:
The distance talks about how far an object has travelled.
Given
9 = -9.8m/s²
t = 3.2s
to get the distance Δx, we will use the formula;
S = ut+1/2gt²
S = 0(3.2)+1/2(-9.8)(3.2)²
S = 0-4.905(10.24)
S = -50.23m
Hence the can of tuna drop by 50.23m
Please help and if you get this and answer the other one on my thing i’ll give u brainliest
How does increasing the energy of a wave affect its wavelength?
The increase in energy causes an increase in wavelength.
The shorter the wavelength, the lower the energy.
The higher the energy, the shorter the wavelength.
There is no relationship between energy and wavelength.
Answers
Answer:
The higher the energy, the shorter the wavelength.
Explanation:
In Einstein’s theory of gravitation, gravity is due to:
A)the acceleration of the universe
B)the presence of mass
C)the rotation of the universe
D)the curvature of spacetime
E)the speed of light
Answers
Answer:
B, caused by the presence of mass
Explanation:
20 points :) pls answer correctlyy
A 70.0 kg skydiver has a weight of 686 N. Just before opening the parachute, they experience 300 N of air resistance. Use F = ma to determine how much are they currently accelerating?
9.8 m/s^2 down
7.6 m/s^2 down
5.5 m/s^2 down
3.8 m/s^2 down
Answers
Answer:9.8m/s^2down
Explanation:
Which statement does NOT describe redesign?
A You would want to make major changes.
B Engineers retest multiple times.
C Engineers try to make items more efficient.
D It happens all the time.
Answers
I need help please .
Answers
Answer:
option 5
Explanation:
because all u do is have to add them up
2.(Ramp section) Suppose the height of the ramp is h1= 0.40m, and the foot of the ramp is horizontal, and is h2= 1.5m above the floor. What will be the horizontal distance traveled by the following four objects before they hit the floor? Assume that R= 15mm in each case; assume that the density of steel is 7.8 g/cm3; and assume that the density of aluminum is 2.7 g/cm3.a.A solid steel sphere slidingdown the ramp without friction.b.A solid steel sphere rollingdown the ramp without slipping.c.A spherical steel shell with shell thickness 1.0 mm rollingdown the ramp without slipping.d.A solid aluminum sphere rollingdown the ramp without slipping.
Answers
Answer:
a) the distance that the solid steel sphere sliding down the ramp without friction is 1.55 m
b) the distance that a solid steel sphere rolling down the ramp without slipping is 1.31 m
c) the distance that a spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping is 1.2 m
d) the distance that a solid aluminum sphere rolling down the ramp without slipping is 1.31 m
Explanation:
Given that;
height of the ramp h1 = 0.40 m
foot of the ramp above the floor h2 = 1.50 m
assuming R = 15 mm = 0.015 m
density of steel = 7.8 g/cm³
density of aluminum = 2.7 g/cm³
a) distance that the solid steel sphere sliding down the ramp without friction;
we know that
distance = speed × time
d = vt --------let this be equ 1
according to the law of conservation of energy
mgh₁ = \(\frac{1}{2}\) mv²
v² = 2gh₁
v = √(2gh₁)
from the second equation; s = ut + \(\frac{1}{2}\) at²
that is; t = √(2h₂/g)
so we substitute for equations into equation 1
d = √(2gh₁) × √(2h₂/g)
d = √(2gh₁) × √(2h₂/g)
d = 2√( h₁h₂ )
we plug in our values
d = 2√( 0.40 × 1.5 )
d = 1.55 m
Therefore, the distance that the solid steel sphere sliding down the ramp without friction is 1.55 m
b)
distance that a solid steel sphere rolling down the ramp without slipping;
we know that;
mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) \(I_{}\)ω²
mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) (\(\frac{2}{5}\)mR²) ω²
v = √( \(\frac{10}{7}\)gh₁ )
so we substitute √( \(\frac{10}{7}\)gh₁ ) for v and t = √(2h₂/g) in equation 1;
d = vt
d = √( \(\frac{10}{7}\)gh₁ ) × √(2h₂/g)
d = 1.69√( h₁h₂ )
we substitute our values
d = 1.69√( 0.4 × 1.5 )
d = 1.31 m
Therefore, the distance that a solid steel sphere rolling down the ramp without slipping is 1.31 m
c)
distance that a spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping;
we know that;
mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) \(I_{}\)ω²
mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) (\(\frac{2}{3}\)mR²) ω²
v = √( \(\frac{6}{5}\)gh₁ )
so we substitute √( \(\frac{6}{5}\)gh₁ ) for v and t = √(2h₂/g) in equation 1 again
d = vt
d = √( \(\frac{6}{5}\)gh₁ ) × √(2h₂/g)
d = 1.549√( h₁h₂ )
d = 1.549√( 0.4 × 1.5 )
d = 1.2 m
Therefore, the distance that a spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping is 1.2 m
d) distance that a solid aluminum sphere rolling down the ramp without slipping.
we know that;
mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) \(I_{}\)ω²
mgh₁ = \(\frac{1}{2}\) mv² + \(\frac{1}{2}\) (\(\frac{2}{5}\)mR²) ω²
v = √( \(\frac{10}{7}\)gh₁ )
so we substitute √( \(\frac{10}{7}\)gh₁ ) for v and t = √(2h₂/g) in equation 1;
d = vt
d = √( \(\frac{10}{7}\)gh₁ ) × √(2h₂/g)
d = 1.69√( h₁h₂ )
we substitute our values
d = 1.69√( 0.4 × 1.5 )
d = 1.31 m
Therefore, the distance that a solid aluminum sphere rolling down the ramp without slipping is 1.31 m
We have that for the Question it can be said that
\(A solid steel sphere sliding down the ramp without friction = 1.55m\)\(A solid steel sphere rolling down the ramp without slipping = 1.309m\)A spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping =\(1.2m\)A solid aluminum sphere rolling down the ramp without slipping = \(1.309m\)From the question we are told
Suppose the height of the ramp is h1= 0.40m, and the foot of the ramp is horizontal, and is h2= 1.5m above the floor. What will be the horizontal distance traveled by the following four objects before they hit the floor? Assume that R= 15mm in each case; assume that the density of steel is 7.8 g/cm3; and assume that the density of aluminum is 2.7 g/cm3.
Generally the equation for sliding without friction is mathematically given as
\(V = \sqrt{4Hh}\)
the equation for sliding without slipping is mathematically given as
\(X = \sqrt{\frac{4Hh}{1+I/mR^2}}\)
A) A solid steel sphere sliding down the ramp without friction.\(V = \sqrt{4*1.5*0.4}\\\\= 1.55m\)
B) .A solid steel sphere rollingdown the ramp without slipping.\(I = 2/5 mR^2\\\\X = \sqrt{\frac{4*1.5*0.4}{1+2/5}}\\\\= 1.309m\)
C) A spherical steel shell with shell thickness 1.0 mm rolling down the ramp without slipping.
\(I = 2/3 mR^2\\\\X = \sqrt{\frac{4*1.5*0.4}{1+2/3}}\\\\= 1.2m\)
D) A solid aluminum sphere rolling down the ramp without slipping.
\(X = \sqrt{\frac{4*1.5*0.4}{1+2/5}}\\\\= 1.309m\)
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Which of these statements best describes the impact of ocean thermal power and current power on the environment?
A. Current power may decrease the fish population.
B. Current power may decrease the gravitational pull of the moon.
C. Ocean thermal power may increase the fish population.
C. Ocean thermal power may increase the gravitational pull of the moon.
Answers
Answer:
A. Current power may decrease the fish population.
Explanation:
The statement that best describes the impact of ocean thermal power and current power on the environment is that current power may decrease the fish population.
The environment is made up of living and non-living components that co-exist and interact with one another.
Harnessing current power from ocean movement will seriously affect the fish population. Most fishes are not sedentary. They move and glide through the water. When current power causes a change in the environment of the fish. This will definitely affect the normal condition prevalent in the body of water.Answer:
A
Explanation:
I took the test good luck :D
Explain the process of refraction of light
Answers
The process of refraction of light occurs when light rays bends when travelling between media of different densities.
What is refraction of light?
Refraction of light is the bending of light rays or the change in the direction of light rays as it travels between media of different densities.
Light waves travel faster in media of less density than media of more density.
The change in density of the media makes light waves to be bend towards or away from the normal.
For example, when light travels from less dense air to more dense water, the light rays are bent towards the normal. However, when light rays travel from water to air, the light rays are refracted away from the normal.
In conclusion, refraction of light waves occur when light crosses the boundary of media of different densities.
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A boy of mass 60 kg is sledding down a 70 m slope starting from rest. The slope is angled at 15° below the horizontal. After going 20 m along the slope he passes his friend of mass 50 kg, who jumps on the sled. They now move together to the bottom of the slope. The coefficient of kinetic friction between the sled and the snow is 0.12. Ignoring the mass of the sled, find their speed at the bottom.
Answers
Name five alternative energy sources for transportation. list one benefit and one challenge of each.
Answers
Natural gas, hydrogen, electricity, hybrid vehicles, biofuels, five major alternative energy sources in transportation. Producing energy from fossil fuels no releases of greenhouse gases, lowering forms of pollution.
What types of energy are primarily used for transportation?The relative ease with which petroleum-derived fuels may be stored and utilized in internal-combustion engines accounts for their supremacy. However, they need a more intricate storage system than other fossil fuels, such as natural gas, gas, and methanol, which can also be utilized as transportation fuels.
How can the transportation system be made to use less energy?Use your personal automobiles sparingly. When possible, strive to use public transportation. Reduce the car's additional BOOT weight. Unnecessary objects like a flat tire and unwanted luggage—especially hefty ones—in the car might lower its mileage.
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According to the Keynesian view, manipulating foreign sector spending is not a reliable way to move the U.S. economy toward a more acceptable equilibrium because __________.
Answers
According to the Keynesian view, manipulating foreign sector spending is not a reliable way to move the U.S. economy toward a more acceptable equilibrium because it does not address the fundamental causes of economic instability.
Keynesian economics focuses on the role of domestic demand in driving economic growth and stability. The government can use fiscal and monetary policy to stimulate aggregate demand and promote full employment. However, changes in foreign sector spending can be unpredictable and beyond the control of domestic policymakers. For instance, an increase in foreign demand for U.S. exports could boost economic growth and employment in the short run, but it may not be sustainable if the foreign demand later decreases. Similarly, a decrease in foreign demand for U.S. exports could have negative short-term effects on the economy, but it may not necessarily lead to a long-term decline. In short, Keynesian economics emphasizes the importance of domestic demand management and stabilizing the economy through government intervention. While changes in foreign sector spending can have some impact on the economy, they are generally seen as unreliable and unpredictable, and therefore not a reliable tool for achieving economic stability in the long run.
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which type of energy is the energy of a moving tennis ball
Answers
Answer:
Kinetic energy.
The explanation never existed
Answer: Kinetic Energy
An incandescent bulb is only 10% efficient at converting the electricity to light. Which of the following best supports the idea that incandescent bulbs lose 90% of the energy to heat?
a. Enthalpy
b. 10% Eule
c. First Law of Thermodynamics
d. Second Law of Thermodynamics
Answers
d. Second Law of Thermodynamics
According to the Second Law of Thermodynamics, the entropy of the entire cosmos as a stand-alone system will always rise over time.
The second law also states that there can never be a decrease in entropy in the universe.
Néstor Leonard Sadi Carnot, a French scientist, is known as the "father of thermodynamics" since he is credited with developing the Second Law of Thermodynamics and many other key ideas. As opposed to caloric, which Sadi Carnot used to define the concept, the second law as it exists now employs entropy. When Sadi Carnot realized that some caloric is always lost in the motion cycle, he realized that caloric is related to heat. As a result, the idea of thermodynamic reversibility was disproved, demonstrating that every system involving work will eventually become irreversible.The Clausius statement, which states that "Heat normally cannot flow spontaneously from a material at a lower temperature to a material at a higher temperature," was created by German physicist Rudolf Clausius.The Kelvin statement, which claims that "it is difficult to convert heat totally in a cyclic process," was created by William Thompson, popularly known as Lord Kelvin. This indicates that there is no way to use up all of a system's energy without also using it up.A Greek mathematician named Constantin Carathéodory came up with his own definition of the second low, claiming that "States which cannot be arbitrarily approached close through adiabatic changes of state" exist close to any initial state.To learn more about the Second Law of Thermodynamics
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Part E Explain how you obtain your answer. Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms:
- decreasing
- oppose
- increasing - support
Sentences:
- When the current in the wire is decreasing the oppose magnitude of the magnetic flux in the loops is ___
- Induced currents in the loops and the forces exerted on them are directed so they ____ this change
Answers
When the current in the wire is decreasing the oppose magnitude of the magnetic flux in the loops is decreasing.
Induced currents in the loops and the forces exerted on them are directed so they oppose this change
Magnetic flux is a size of the entire magnetic subject which passes thru a given region. it's far a useful device for helping describe the outcomes of the magnetic pressure on some thing occupying a given location.
Magnetic flux through a surface is the surface integral of the ordinary element of the magnetic subject B over that floor. it is also denoted Φ or ΦB. The SI unit of magnetic flux is the weber, and the CGS unit is the maxwell.
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Find the vector whose magnitude is 5 and which is in the direction of the vector 4i -3j +k
Answers
The vector with a magnitude of 5 and in the direction of the vector 4i - 3j + k is approximately (20/√26)i + (-15/√26)j + (5/√26)k.
To solve this problemThe given vector can be normalized before being multiplied by the desired magnitude. This is how to locate the vector:
The vector that has been provided should be normalized by dividing each of its components by its magnitude. The Pythagorean theorem can be used to determine the magnitude of the vector 4i - 3j + k:
Magnitude = √(4² + (-3)² + 1²) = √(16 + 9 + 1) = √26
Normalize the vector by dividing each component by the magnitude:
Normalized vector = (4/√26)i + (-3/√26)j + (1/√26)k
Multiply the normalized vector by the desired magnitude:
To obtain a vector with a magnitude of 5, multiply each component of the normalized vector by 5:
Desired vector = 5 * ((4/√26)i + (-3/√26)j + (1/√26)k)
Simplifying the expression gives:
Desired vector ≈ (20/√26)i + (-15/√26)j + (5/√26)k
So, the vector with a magnitude of 5 and in the direction of the vector 4i - 3j + k is approximately (20/√26)i + (-15/√26)j + (5/√26)k.
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Girl runs 40m due south in 40 seconds,he then return to North,20m in 10 seconds,, calculate
1. average speed
2.average velocity
3.change in velocity
4.acceleration
Answers
An owl accidentally drops a mouse it is carrying, while flying horizontally at a speed of 16.0 m/s. The mouse drops to the ground 15.0 m below. What is the impact speed with which the mouse hits the ground?
Answers
The impact speed of the mouse is 23.3 m/s as per the data given in the question.
What is velocity?Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.
To solve for the impact speed, we can use the following equation:
\(v^2 = u^2 + 2as\)
Where:
v = impact speed,
u = initial speed (which is the horizontal speed of the owl),
a = acceleration due to gravity (9.8 m/\(s^2\)), and
s = vertical distance fallen (15.0 m).
Substituting the known values, we get:
\(v^2 = 16.0^2 + 2 X 9.8 X 15.0\)
\(v^2\) = 256 + 294
\(v^2\) = 550
v = sqrt(550 )
v = 23.3 m/s
Thus, the impact speed of the mouse is 23.3 m/s.
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Blocks A and B of masses m and 2m, respectively, are connected by a light string and are pulled along a horizontal surface of negligible friction by a horizontal force of magnitude F, as shown in the figure. The tension in the string is T. If the masses of the blocks are doubled, and the magnitude of the horizontal force remains the same, the tension in the string will be:
a) 1/4T
b) 1/2T
c) T
d) 2T
e) 4T
Answers
When the masses of the blocks are doubled and the force applied is constant, the tension in the string will be the same.
The given parameters:
Mass of block A = mMass of block B = 2mApplied horizontal force, = FTension in the string, = TThe acceleration of the blocks is calculated as follows;
\(a = \frac{F}{m + 2m} \\\\a = \frac{F}{3m}\)
The tension in the string is calculated as follows;
\(T = ma\\\\T = m(\frac{F}{3m)}\\\\T= \frac{F}{3}\)
When the masses of the blocks are doubled and the force applied is constant;
\(a = \frac{F}{2m + 4m} \\\\a = \frac{F}{6m}\)
The new tension in the string is calculated as follows;
\(T_2 = ma\\\\T_2 = (2m) (\frac{F}{6m} )\\\\T_2 = \frac{F}{3} = T\)
Thus, when the masses of the blocks are doubled and the force applied is constant, the tension in the string will be the same.
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You have two identical looking spools (same mass, same shape, same size). However, one is hollow, made from iron, the other is solid, made from aluminum. A string is wound around each spool. If you pull on both strings with equal forces, which spool is going to have the larger angular acceleration
Answers
Answer:
The one made from AL will have a smaller moment of inertia and thus a greater acceleration:
α = I ω
I = M R^2 for the iron (all the mass at a distance R)
Replacing any of the Fe with Al (and putting at a smaller radius) is going to reduce the total moment of inertia,
calculate the energy in electron volts of a photon having a wavelength
a) in the microwave range, 5.00cm
b) in the visible light range, 500nm
c) in the x-ray range, 5.00nm
\(E=nhf\)
Answers
The energies of the photon in each case are;
a) 2.5 * 10^-5 eV
b) 2.5 eV
c) 2.5 * 10^2 eV
What is the energy of the photon?We know that a photon is known to have an energy that can be measured or calculated by the use of the formula;
E = hc/λ
E = energy of the photon
h = Plank's constant
λ = Wavelength
c = Speed of light
Then;
a) E = 6.6 * 10^-34 * 3 * 10^8/5 * 10^-2 m
E = 3.96 * 10^-24 J or 2.5 * 10^-5 eV
b) E = 6.6 * 10^-34 * 3 * 10^8/500 * 10^- 9 m
E = 3.96 * 10^-19 J or 2.5 eV
c) E = 6.6 * 10^-34 * 3 * 10^8/5 * 10^- 9 m
E = 3.96 * 10^-17 or 2.5 * 10^2 eV
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5. How long does it take a car to cross a 30 m wide intersection after the light turns green after waiting at a traffic light, assuming the car accelerates at a constant 2.0 m.s2. Ignore the driver’s reaction time
Answers
Answer:
S = Vo t + 1/2 a t^2 = 1/2 a t^2 V0 = 0 for a standing start
t = (2 S / a)^1.2
t = (2 * 30 / (2.0) = (30)^1/2 = 5.5 sec
How does science involve creativity
Answers
Creativity has been studied in psychology. First, it ranges from individuals with little to no original thought to very creative and innovative thinkers. It does not just take the form of art. Consider the industrial titans Edison, Ford, and Harvey Firestone, all of whom were also extremely creative people. They are equally as imaginative as Beethoven, Monet, and Picasso. One can be creative in many different ways or just one. There might be a biological or genetic foundation for creativity. Take a look at the Bach family, Paloma Picasso, Eugen, and Manfred Bleuler for evidence that it may be inherited to some extent (father and son psychiatrists who greatly advanced the study of schizophrenia). After saying that, I have to add that creativity also requires HARD WORK, PRACTICE, etc. The traditional quip that just 10% of creativity comes from heredity or hard effort is actually accurate. I apologize if I misunderstood the humor. Before discovering the right mix of materials, Edison would test 1,000 different combinations. You can find piles of canvasses, shattered pots, and other items that failed to live up to the artist's expectations in their studio. The ability to persist is crucial to creativity. Divergent thought is yet another feature. Most individuals only see one solution when they examine a situation. When someone is creative, they might imagine dozens or even hundreds of solutions to the same issue. People that are creative don't hesitate to attempt and reject ideas. The creative process overvalues intelligence. The link between intellect and creativity disintegrates over a relatively low degree. And there are some fairly unimpressive individuals who are incredibly creative but not particularly gifted at managing their finances or producing academic work. To some extent, creativity may be taught. We must begin early in the learning and growth process in order to be as effective as possible.
Science knows quite a bit about creativity—but there remains much to learn.
- Eddie
Question 2 of 25
If JKLM is a parallelogram, what is the length of LM?
K
18
8
M
O A. 10
O B. 18
O C. 8
D. 26
SUBMIT
Answers
Answer:its 10
Explanation:
Answer:
8
Explanation:
In the electric of capacitance 4 ,3 and 2 microfaradas, respectively, are connected in senes to a battery of 260 V , calculate the charge?
Answers
The total charge in the circuit is 240 microcoulombs.
To calculate the total charge in a series circuit with capacitors, we need to use the formula Q = CV, where Q represents the charge, C is the capacitance, and V is the voltage.
In this case, we have three capacitors connected in series with capacitances of 4 μF, 3 μF, and 2 μF, respectively. The voltage across the circuit is 260 V.
To find the total capacitance (C_total) in a series circuit, we use the reciprocal rule: 1/C_total = 1/C1 + 1/C2 + 1/C3. Plugging in the values, we get 1/C_total = 1/4 + 1/3 + 1/2.
Simplifying this equation gives us 1/C_total = (3 + 4 + 6)/12 = 13/12. Taking the reciprocal, we find C_total = 12/13 μF.
Now, we can calculate the total charge (Q_total) using Q = C_total × V. Substituting the values, we get Q_total = (12/13) μF × 260 V.
Calculating the numerical value, Q_total = (12/13) × 260 = 240 μC (microcoulombs).
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if a wave has to travel 600 m and its wavelength is 0.4 m, with a frequency of 500 Hz. How much time will it take for the wave to travel 600 m?
Answers
Answer: 3 s
Explanation:
i took the test in physics :)
The time taken by the wave to travel the distance is 3 seconds.
What is meant by frequency of a wave ?
Frequency of a wave is defined as the number of oscillations or cycles completed by the wave within one second.
Here,
Distance travelled by the wave, d = 600 m
Wavelength of the wave, λ = 0.4 m
Frequency of the wave, f = 500 Hz
The expression for the velocity of the wave is given by,
v = fλ
v = 500 x 0.4
v = 200 m/s
Therefore, the time taken by the wave to travel the distance of 600 m can be given as,
Time taken = displacement/velocity
So,
t = d/v
t = 600/200
t = 3 s
Hence,
The time taken by the wave to travel the distance is 3 seconds.
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In a DC generator, the generated emf is directly proportional to the
Answers
In a DC generator, the generated electromotive force (emf) is directly proportional to the rotational speed of the generator's armature and the strength of the magnetic field within the generator.
This relationship is described by the equation for the generated emf in a DC generator:
Emf = Φ * N * A * Z / 60
Where:
Emf is the generated electromotive force (in volts),
Φ is the magnetic flux density (in Weber/meter^2\(meter^2\) or Tesla),
N is the number of turns in the armature winding,
A is the effective area of the armature coil (in square meters),
Z is the total number of armature conductors, and
60 is a constant representing the conversion from seconds to minutes.
From this equation, we can see that the generated emf is directly proportional to the magnetic flux density (Φ) and the product of the number of turns (N), effective area (A), and the total number of armature conductors (Z). This means that increasing any of these factors will result in a higher generated emf.
The magnetic flux density (Φ) can be increased by using stronger permanent magnets or increasing the strength of the field windings in the generator.
The number of turns (N) and the effective area (A) are design parameters and can be optimized for a specific generator. Increasing the number of turns or the effective area will result in a higher generated emf.
Similarly, the total number of armature conductors (Z) can be increased to enhance the generated emf.
By controlling and optimizing these factors, the generated emf in a DC generator can be increased, resulting in higher electrical output. However, it is important to note that there are practical limits to these factors based on the design and construction of the generator.
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what is magnetic flux thru a closed surface
Answers
Answer: Zero
Explanation:
Gauss's law states that the total magnetic flux through a closed surface is equal to zero. Because the magnetic field lines are in continuous loops, so all closed surfaces have magnetic field lines coming out, hence the net magnetic flux is zero.
Personal computers are a fixture in most business and in many homes.
true or false
Answers
true
Explanation:
computers have become a need in many businesses and homes we now living in a era of technology a computer is now a neccecity
The statement is True.
Personal computers have become an essential fixture in most businesses and households.
They have revolutionized the way we work, communicate, access information, and perform various tasks.
In the business world, personal computers are ubiquitous, serving as indispensable tools for productivity, data management, communication, and decision-making.
From small businesses to large corporations, computers have streamlined operations and enhanced efficiency.
Similarly, in homes, personal computers have become commonplace, enabling individuals and families to connect with the world, pursue online education, engage in entertainment, and manage various aspects of their lives.
With their versatility and functionality, personal computers have become an integral part of modern life, transforming the way we live and work.
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A SOLID OF MASS 1.3KG Suspended by a spring Is Completely Immersed in H₂0. If the tension in the spring is 6N. Calculate: a. upthrust on the solid b. the volume of the solid c. Density (take g=10m/s², density of H₂0= 1000kg/m³)
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a. Upthrust on the solid:
\(Upthrust = volume of solid * density of fluid * g = 1000 kg/m^3 * volume of solid * 10 m/s^2\)
b. Volume of the solid:
\(volume = mass/density = 1.3 kg / (1000 kg/m^3) = 1.3 x 10^-3 m^3\)
c. Density of the solid:
So,\(density = mass/volume = 1.3 kg / (1.3 x 10^-3 m^3) = 1000 kg/m^3\)
What is upthrust?Upthrust is the upward force exerted on an object immersed in a fluid. It is equal to the weight of the fluid displaced by the object and acts in the opposite direction to gravity. Upthrust helps to counteract the weight of the object and keep it afloat.
a. The upthrust on an object immersed in a fluid is equal to the weight of fluid displaced by the object. The weight of fluid displaced can be calculated using the formula:
Weight of fluid = volume of fluid * density of fluid * g
Since the solid is completely immersed in water, the volume of the fluid displaced is equal to the volume of the solid. The density of water is given as 1000 kg/m^3, and the acceleration due to gravity is given as\(10 m/s^2.\)
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