Answer:
1.62
Explanation:
comment section (credits to charlizebarth)+ correct on acellus
EMF induced in coil is directly proportional to the rate of change of magnetic flux by the flowing current with n number of turns in it.The total emf generated is 1.62 volts
Given-
Total coils in a solenoid [tex]N[/tex] is 365 coils.
The change in flux is,
[tex]d\phi=9.44\times10^{-5} -2.57\times 10^{-5}[/tex]
[tex]d\phi=6.87\times10^{-5}[/tex]
The change in time [tex]dt[/tex] is 0.0154 sec.
According to Faraday's law the EMF induced in coil is directly proportional to the rate of change of magnetic flux produced in the coil by the current i flowing in it with conductor having a finite number of turns in it.This can be given as,
[tex]emf=-N\dfrac{d\phi }{dt}[/tex]
[tex]emf=-364\times \dfrac{6.87\times 10^{-5}}{0.0154}[/tex]
[tex]emf= -1.62[/tex]
Hence, the total emf generated is 1.62 volts.
For more about the EMF, follow the link below-
https://brainly.com/question/118936
1 Newton = 1,,,,,,,,
Answer:
kg*m/2
Explanation:
hope this helps just did it
Answer:
c
Explanation:
a soccer ball is kicked and left
the ground at angle an 45° above the horizantal, moving at 25 m/s.
calculate for the:
a. hang time of the ball
b. initial horizontal velocity
c. initial vertical velocity
d. maximum height
e. the range travelled by ball
Answer:
Explanation:
Considering that this is parabolic motion, we know that the time the ball is in the air begins the instant it leaves the ground, reaches up to its max height, and then begins falling until it reaches the ground. Duh, right? Some important things happen during this trip. There are a few things we need to know in order to even begin the problem. Parabolic motion has x and y coordinates because it is 2-dimmensional; the acceleration in the x dimension is not the same as the acceleration in the y dimension; the velocity of an object at its max height is always 0; the time it takes to reach its max height (where the max height is half the distance the object travels) is half the time it takes to make the whole trip. Yikes. That's a lot to know and much to remember! Don't you just LOVE physics!?
For a. the hang time is the time the ball was in the air. Some of that stuff we talked about above is pertinent to solving this problem. We know that the velocity of the ball is 0 at its max height, and we also know that if we find the time it takes to reach its max height, we can double that number to find how long it was in the air for the whole trip. Use the one-dimensional equation
[tex]v=v_0+at[/tex] to find out how long it took to reach the max height. Even though we don't yet know the max height, we DO know that the velocity at that point is 0. BUT before we do that, since we are working in the y-dimension only, it would behoove us (benefit us) to find the velocity particular to this dimension. We are going to answer c. first, then backtrack.
c. wants the initial vertical velocity. That is found in the magnitude of the "blanket" or generic velocity times the sin of the angle, namely:
[tex]V_y=25sin(45)[/tex] so
[tex]V_y=[/tex] 18 m/s Now we can use that as the initial upwards velocity in part a:
[tex]v=v_0+at[/tex] and filling in:
0 = 18 + (-9.8)t and
-18 = -9.8t so
t = 1.8 seconds. But remember, this is only half the time it was in the air. The whole trip, then, takes 2(1.8) which is
t = 3.6 seconds
That's a and c. Now for b:
b. asks for the x component of the velocity:
[tex]V_x=Vcos\theta[/tex] which works out to be the same as the vertical velocity, since the sin and cos of 45 degrees is the same:
[tex]V_x=25cos45[/tex] and
[tex]V_x=[/tex] 18 m/s
Onto d:
d. wants the max height. Remember, it took 1.8 seconds to get to the max height, so using yet another one-dimensional equation:
Δx = v₀t + [tex]\frac{1}{2}at^2[/tex] where Δx is the displacement, v₀ is the initial upwards velocity, a is the pull of gravity, and t is the time it takes to reach that max height (Δx, our unknown). Filling in:
Δx = [tex]18(1.8)+\frac{1}{2}(-9.8)(1.8)^2[/tex] and if you do the rounding correctly, you'll end up with this:
Δx = 32 - 16 so
the max height, Δx, is 16 meters.
e. wants the range. That translates to the distance the ball traveled. This is found in a glorified version of d = rt, where d is displacement, r is velocity, and t is...well, time (that doesn't change):
Δx = vt so
Δx = 18(3.6) remember that the ball was in the air for a total of 3.6 seconds, so
Δx = 65 meters.
Phew!!!!! That's a lot! I suggest you learn your physics or this will make you insane by the end of the course!
Answer:
3
Explanation:
If a ball is thrown straight up with an initial velocity of 20 m/s upward, what is the maximum height it will reach?
afootball of mass 550g is at rest on the ground the football is kicked with a force of 108 newton the footballers boot is in contact with the ball for 0.3 minute what is the kenitic
energy of the ball
If "0.3 minute" is correct, then it's 9,543,272 Joules.
If it's supposed to say "0.3 SECOND", then the KE is 2,651 Joules.
Two people are trying to push a large box across a floor. Person 1 pushes with a force of 15 N to the right, while person 2 pushed with a force of 20 N to the right. What is the net force acting on the box?
5 N to the left
5 N to the right
35 N to the left
35 N to the right
Answer:
35 N to the right
Explanation:
When calculating net force when both forces are on the same side you add them when they are going against each other you subtract them.
how long does it take a ball to fall 5 meters
What makes magnetic objects different from non- magnetic objects?
Light refracts when it
A person walking in high heals can damages the floor by making small dimples in the
floor since all their weight is concentrated on the tip of the high heal. It the person
weighs 81 kg and the high of the tip of the high heal is 3.5 cm2, what is the force over
the floor?
SHOW WORK IF POSSIBLE TANKS A LOT
Answer:
2 314.28571 kg / m
Explanation:
divide
and you see
You are an astronomer who wants to study a faint star in the process of being born, which gives off most of its faint radiation in the infra-red. Which of the following would NOT be a step you would want to take? a. heat your telescope, so its delicate optics are not cold b. try to have your telescope as high above the layers of water vapor in the Earth's atmosphere as possible c. shield your telescope from the radiation given off by your graduate students d. isolate your telescope in very cold surroundings e. make sure your telescope optics are kept as free of dust as possible
Answer:
a. heat your telescope, so its delicate optics are not cold
Explanation:
If star is just born and giving off faint radiation in infrared. These radiation would be long range infra red radiation as the star is just born having less surface temperature.
In order to locate the star through telescope, it must be positioned at higher altitudes so that water vapor is minimum. The radiation from other heating objects might alter the light coming through the cosmos. Therefore, it is mandatory to shield the telescope from foreign radiations.
For the same reason mentioned above the telescope must have cold surroundings. Moreover, optics of the telescope must also be kept free from dust and dirt for clear vision.
However, Heating of telescope in order to safe optics from cold must not be done. This would change the wavelength of long range infra red radiations from star and hence, its location.
Indicar objetosque puedan ser observados a simple vista, con microscopio, con microscopio electrico y con miscroscopio de transmicion. Indicar cuel es orden de magnitud de cada uno
Answer:
En esta respuesta voy a usar la unidad μm, tal que:
1 μm = 1*10^(-9) m
Objetos que pueden ser observados a simple vista:
Son todos aquellos objetos que podemos observar simplemente con nuestros ojos, con ellos podemos observar desde un edificio (con tamaños de decenas de metros) hasta algunos cabellos, que pueden tener un diámetro de 0.1 mm
Cosas más pequeñas que estás muy difícilmente se pueden ver a simple vista.
Con un microscopio podremos ver cosas del tamaño de una célula, como glóbulos blancos, rojos, algunos microorganismos, etc, los cuales rondan un tamaño de unos 10 μm. Naturalmente, distintos microscopios tendrán distintas amplificaciones (por lo que con algunos podremos ver objetos muy pequeños que con otros no).
Microscopio eléctrico:
Este microscopio usa electrones en lugar de luz para formar imágenes.
Con él podremos observar cosas como las componentes de una célula (membranas, orgánulos grandes, etc), los cuales pueden medir unos pocos nanómetros (por ejemplo, una membrana celular tendrá un tamaño de entre 5 μm y 10 μm)
Microscopio de transmisión.
Tener en cuenta que el microscopio de transmisión es un microscopio eléctrico, el cual lanza un haz de electrones al objeto que se desea observar, de tal forma que algunos de estos electrones rebotan formando así la imagen virtual amplificada que podemos observar.
Con estos aparatos podemos ver orgánulos pequeños (0.5 μm), y lo más pequeño que podemos ver (con los microscopios más potentes) son columnas de átomos (0.1 μm)
When studying atoms, scientists can ignore the ______ force between charged particles that make up the atoms because it is many millions of times smaller than other forces in the atom.
Gravitational
Constant
Normal
Fricitional
Answer:
Gravitational
Explanation:
When studying atoms, scientists can ignore the gravitational force between charged particles that make up the atoms because it is many millions of times smaller than other forces in the atom.
Answer:
Gravitational
Explanation:
The Playground
A and G are at same height and where
skateboarder starts
E
A
G
ao oon
E
С
vai
OOHO
F
D
O meters
List in order from greatest to least the Kinetic energy from greatest to least.
Drag the boxes in the correct order
1
1
DDDDDD
What is globalization?
Answer:the process by which businesses or other organizations develop international influence or start operating on an international scale.
Explanation:
Three resistors of values 2 Q, 3 Q and 5 Q are connected in series with a battery of voltage 6.0 V. Calculate the current through each of the resistors, and the current through the battery.
Answer:
Current = 0.6 A
Explanation:
Given that,
Three resistors 2 ohms, 3 ohms and 5 ohms are connected in series with a battery of voltage 6 V.
In series combination of resistors, the current through each resistor is the same while the voltage divides.
The equivalent resistance in this case is given by :
[tex]R_{eq}=R_1+R_2+....[/tex]
Put all the values,
[tex]R_{eq}=2+3+5\\\\R_{eq}=10\ \Omega[/tex]
Let I be the current. Using Ohm's law,
[tex]V=IR\\\\I=\dfrac{V}{R}\\\\I=\dfrac{6}{10}\\\\I=0.6\ A[/tex]
So, the current through each resistor and the current through the battery is equal to 0.6 A.
HELP ME PLEASE WITH MY HOMEWORK ILL GIVE BRAINLIEST
Answer: Mass
Explanation:
Figure one, voltmeters
Answer:
(i) Half
(ii) 3 V
(iii) V₁
Explanation:
(i) The given parameters are;
The circuits have identical resistances
The number of resistors in circuit 1 = 1 resistor
The number of resistors in circuit 2 = 2 resistors
Let 'R' represent the value of each resistor, we have;
The total resistance of circuit 1 = R Ohm
The total resistance of circuit 3 = 2·R Ohm
∴ The total resistance of circuit 1 = (1/2) × The total resistance of circuit 3
∴ The resistance of circuit 1 is half the resistance of circuit 3
(ii) The potential difference of each cell, V = 1.5 volts
The number of cells in circuit 2 = 2 cells
The total potential difference of the cells of circuit 2 = 2 × 1.5 volts = 3 × volts = 3 V.
The voltmeter reading = The potential difference across the cell or cells it is applied
∴ The voltmeter reading on voltmeter, V₂, applied across the cells of circuit 2 = 3 V
(iii) The voltmeter reading V₁ = 1.5 V
The voltmeter reading V₂ = 3 V
The voltmeter reading V₃ = 4.5/(2·R) × R = 2.25 V
Therefore, the voltmeter reading with the smallest volt, is V₁ = 1.5 V
2.List two changes an unbalanced force can cause.
Answer:
By applying an unbalanced force, you can change the motion of an object. Unbalanced forces can make an object at rest start moving, make a moving object stop, or change the direction and speed of the object.
Explanation:
Which of the following has contributed to the obesity problem in the United States?
variation of serving sizes
distortion of serving sizes
packaging of serving sizes
labeling of serving sizes
Answer:
Variation of serving sizes
Explanation:
Explanation:
The two most commonly advanced reasons for the increase in the prevalence of obesity are certain food marketing practices and institutionally-driven reductions in physical activity, which we have taken to calling “the big two.” Elements of the big two include, but are not limited to, the “built environment”, increased ...
Please, I need to finish my homework.
An object is to the left of a convex mirror. Describe the two rays needed to indicate the location and height of the image. Additionally, state what side of the mirror the image is on and whether it is real or virtual.
Answer:
mark me as the brainly plss
Si está probando u motor para un nuevo modelo de coche ; este es capaz de pasar de 0 a 100 km/h en 7,5 segundos . Si el coche tiene una masa de 550 kg cuál será la fuerza que realiza el motor ?
Answer:
La fuerza que realiza el motor es 2035 N.
Explanation:
Podemos encontrar la fuerza del motor usando la siguiente ecuación:
[tex] F = ma [/tex] (1)
En donde:
m: es la masa del coche = 550 kg
a: es la aceleración
Se puede calcular la aceleración mediante la siguiente ecuación cinemática:
[tex] v_{f} = v_{0} + at [/tex] (2)
En donde:
[tex] v_{f}[/tex]: es la velocidad final del coche = 100 km/h
[tex] v_{0} [/tex]: es la velocidad inicial del coche = 0
t: es el tiempo = 7,5 s
Resolviendo la ecuación (2) para "a" tenemos:
[tex] a = \frac{v_{f} - v_{0}}{t} = \frac{100\frac{km}{h}*\frac{1000 m}{1 km}*\frac{1 h}{3600 s} - 0}{7,5 s} = 3,70 m/s^{2} [/tex]
Entonces, la fuerza es:
[tex] F = ma = 550 kg*3,70 m/s^{2} = 2035 N [/tex]
Por lo tanto, la fuerza que realiza el motor es 2035 N.
Espero que te sea de utilidad!
4-year-old becomes frightened of the dark and refuses to go to sleep at night. How would a psychoanalyst and a behaviorist differ in their views of how this problem developed?
Answer:
A psychoanalyst would see the 4-year-old as having an unresolved conflict where the brain judges or evaluates how good or bad the darkness is, or the usefulness of sleeping in the dark at night based on a comparison, due to the child's exploration of the world around him. A psychoanalyst might see the child's refusal to sleep at night due to the dark as a fear created for instance when the child sleeps alone without the parent. This might change if the child sleeps at night beside the parent in the dark.
While behaviorists would look at how having previous negative experiences in the dark influences a child's behavior towards staying in the dark. This fear would be reinforced with more negative experiences in the dark such as having a bad nightmare whenever the child sleeps in the dark, a feeling of hearing, or seeing strange things while in the dark. These examples would have built a behavioral pattern where the child would be conditioned to respond fearfully to being in the dark.
Find the voltage across the 15 Q resistor.
[?] V
No links please
Answer:
Explanation:
same idea as before Liam, first, find the parallel resistance in 35 || 20
(35*20) / (35+20) = 700 / 55 = 12.727272 ohms
now add the 12.727272 + 15 = 27.727272 ohms total resistance
V = IR
10 = I * 27.727272
10 / 27.727272 = I
0.360655 = I
V = IR (again, but across the 15 ohm resistor)
V = 0.360655 * 15
V = 5.4098
Explain how interactions can both benefical and harmful to the organisms in an community
There are 2 ways of collecting the sun’s energy. What are they? Give an example of each.
help please physics !!
Answer:
Option A. 1 bar = 1 atm
Explanation:
Pressure has various units of measurement. Each unit of measurement can be converted to other units of measurement. For example:
1 atm = 1 bar
1 atm = 760 mmHg
1 atm = 760 torr
1 atm = 1×10⁵ N/m²
1 atm = 1×10⁵ Pa
With the above conversion scale we can convert from one unit to the other.
Considering the question given above, it is evident from the coversion scale illustrated above that only option A is correct.
Thus,
1 bar = 1 atm
list 10 qualities of an effective leader.
answer: vision
inspiration
stragic and critical thinking
interpersonal complication
autencity and self awareness
open mindness and creativity
flexibility
responsibility and dependability
Answer:
effective leader
1. must stand on his/her words
2. must trust in his/her capabilities
3. must learn from mistakes and never repeat them
4. should motivate others to go in a right path
5. should have an out of the box thinking ability
6. must be responsible towards his duty
7. never disrespect someone weaker than him
8. must trust his followers
9. must have faith in them
10. always be responsible for the things his/her followers do
Lack of portion control contributes to the obesity problem in the United States.
True
False
HELP PLZZZ I will give brainliest to who ever helps me the fastest plzzzzzzzz.
Answer: space race automobiles
Explanation:
they were used in space to get to planets
A bowling ball moving with a velocity of 5V to the right collides elastically with a beach ball moving at a velocity 2V to the left. The bowling ball barely slows down. What is the approximate velocity of the beach ball after the collision?
Answer:
[tex]v'_2=3V[/tex]
Explanation:
From the question we are told that:
Bowling ball Speed [tex]v_1=5 m/s[/tex]
Beach ball Speed [tex]v_2=2 m/s[/tex]
Let The Mass be equal i.e
[tex]M_1=M_2[/tex]
Therefore
Generally the equation for Velocity of beach ball after collision [tex]v'_2[/tex] is mathematically given by
Since Velocity is Vector Quantity
Therefore
[tex]v'_2=v_1-v_2[/tex]
[tex]v'_2=5-2[/tex]
[tex]v'_2=3V[/tex]