Answer:
Explanation:
Voltaje, tensión, corriente, resistencia, etc. son términos por diferentes investigadores (Danusso y Dupré 1987,
de un lenguaje común con el que todos estamos familia- Buchweitz y Moreira 1987, Dupin y Johsua 1987, Gauld
rizados al utilizarlos para referirnos al funcionamiento 1988, Varela, Manrique y Favieres 1988, Acevedo 1989,
de una gran cantidad de aparatos eléctricos y electróni- Andrés 1990, Licht y Thijs 1990). Las principales caraccos de nuestro entorno cotidiano. terísticas de las interpretaciones de los estudiantes sobre
los circuitos eléctricos que han destacado los investigadores
Las ideas básicas de electricidad son presentadas a los son:
estudiantes en los cursos de física del bachillerato, frecuentemente acompañadas de experimentos sencillos a) La idea de que la bombilla consume o atenúa la
con baterías y bombillas. Como consecuencia, muchos comente que circula por ella. Cuando se colocan varias
estudiantes de bachillerato, y todavía más los de universidad, bombillas en serie, los estudiantes predicen que la bombilla
son capaces, a veces, de resolver complicados circuitos más cercana al punto de donde «sale» la corriente brillará
con mallas eléctricas y de realizar montajes eléctricos con mayor intensidad que las otras, ya que la corriente se
relativamente sofisticados.
To induce an electric current in a coil of a wire you can
A) move a magnet into the center of the coil of wire
B) hold a magnet against the coil of wire
C) hold a magnet in the middle of the coil
D) hold a magnet above the coil of wire
Answer:
The Answer is
A) move a magnet into the centre of the coil of wire
John and Henry push a piano with 800N, and the piano refuses to move. According to the definition of work in physics, there is NO work done on the piano.
Answer:
Explanation:
This is true because the definition of work is the parallel force required to move an object times the distance it moves. If it doesn't move, no work has been done. That is not to say that no energy has been expended, because it most certainly has! But that is not the same thing.
6.) What is the missing element?
a. Hydrogen
b. Helium
c. Carbon
d. Nitrogen
Answer:
It's nitrogen. Specifically, this is the alpha emission of an N-15 isotope.
Ohm's law states which relationship between electrical quantities? a. Volts = current x resistance b. Volts = current divided by amps c. Volts = coulombs divided by charge d. Volts = resistance times charge
Answer:
a. Volts = current x resistance
Explanation:
Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.
Mathematically, Ohm's law is given by the formula;
[tex] V = IR[/tex]
Where;
V represents voltage measured in voltage.
I represents current measured in amperes.
R represents resistance measured in ohms.
Hence, Ohm's law gives the relationship between voltage, current and resistance of an electric circuit.
What is the major function of Eustachain tube of ear?
Answer:
Explanation:
Eustachian tube is located in between the middle ear and the nasopharynx.It's function is to control the pressure within the middle making it equal to the air pressure outside the body.
Rex decides to launch a priceless vase into the air at a 90-degree angle. The initial velocity vase is +7.0 m/s. Dylan claims that the vase would achieve a higher height if it were launched at a 45-degree a Dylan correct? A. Dylan is correct because a 45-degree launch angle results in the largest vertical range B. Dylan is correct because larger launch angles result in a smaller vertical range. C. Dylan is incorrect because a 90-degree and 45-degree launch angle result in the same range. D. Dylan is incorrect because a 90-degree launch angle results in the largest vertical range
Answer:
D. Dylan is incorrect because a 90-degree launch angle results in the largest vertical range
Explanation:
Projectile is the motion of an object thrown into space. When an object is thrown into space, the only force which acts on it is the acceleration due to gravity.
An object thrown into space would reach maximum height (vertical range) if it is launched at an angle of 90 degrees. For maximum horizontal range, the object needs to be launched at an angle of 45 degrees.
Therefore Dylan is incorrect because a 90-degree launch angle results in the largest vertical range
The correct statement is
D. Dylan is incorrect because a 90-degree launch angle results in the largest vertical range
Information regarding projectile:It is the object motion that should be thrown into space. At the time when the object is thrown into space, the only force that should act on it represent the acceleration because of gravity.
Since object thrown into space should have to reach maximum height in the case when it is launched the 90 degrees angle. Due to the above reasons, option D is considered.
Learn more about the degree here: https://brainly.com/question/2836651
What is most likely the color of the light whose second-order bright band forms an angle of 13.5° if the diffraction grating has 175 lines per mm?
Answer:
the color is red.
if brakes were applied to a already moving car with a speed of 72 kilometre per hour to reduce it to the speed of 18 kilometre per hour in 10 seconds calculate
Answer:
Acceleration, a = -0.5 m/s²
Explanation:
Given the following data;
Initial velocity = 72 km/h
Final velocity = 18 km/h
Time = 10 seconds
To find the acceleration of the car;
Conversion:
72 km/h to m/s = 72*1000/3600 = 20m/s
18 km/h to m/s = 18*1000/3600 = 5 m/s
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.
Mathematically, acceleration is given by the equation;
[tex]Acceleration (a) = \frac{final \; velocity - initial \; velocity}{time}[/tex]
Substituting into the equation;
[tex]a = \frac{5 - 20}{10}[/tex]
[tex]a = \frac{-5}{10}[/tex]
Acceleration, a = -0.5 m/s²
Therefore, the car is decelerating.
A 15kg dog jumps out of a 40 kg canoe. If the dog's velocity is 1.2 m/s, what is the velocity of the canoe
Answer:
the velocity is 0.45 m/s and it is moving in the opposite direction
or
-0.45 m/s
Explanation:
The law of conservation of momentum says that initial momentum = final momentum
( mass x velocity of the dog ) = - (mass x velocity of the canoe)
(15 x 1.2) =- (40 x velocity of the canoe)
Velocity of the canoe = -(15 x 1.2) / 40 = -0.45 m/s
What is the resistance of resistor R3?
Answer: 2.0
Explanation: I KNOW !
Which element is LEAST likely to react with Magnesium?
a. Calcium
b. Sulfur
c. Chlorine
d. Iodine
Answer:
my only true question is b
A motor is used to pump water from a depth of 5m to fill a volume of 10cubic meter in 5 min . If 50 percent of the power is wasted , What is the power of the motor?
Which of the following characteristics were not included in John Dalton's description of the atom? A. In any element, all the atoms are the same. B. Atoms are smaller than quarks. C. All matter is made up of atoms. D. Atoms exist only on Earth. E. Elements in a compound are always in a constant ratio. NO LINKS OR VIRUSES PLS
Answer:
d
Explanation:
atoms exits everywhere
Answer: The correct choices to this question are, "B. Atoms are smaller than quarks," and "D. Atoms only exist on earth." Hope this helped.
The speed of light in a piece of plastic is 1.87 × 10^8 meters per second. What is the absolute index of refraction of this plastic?
Question 11 options:
1.00
1.6
0.67
1.33
[tex]\tt\red{See \; Your \: Answer!}[/tex]
Your answer was 0.67m...
If the index of refraction for a certain glass is 1.5, and the angle of refraction is 15 degrees for a ray of light
traveling from air (index of 1) what is the angle of incidence? (in coming beam)
Round your answer to the nearest tenth of a digit. The answer is in degrees so don't worry about the units
Answer:
[tex]\theta_i = 23^o[/tex]
Explanation:
The refractive index of a medium is given by the following formula:
[tex]\eta = \frac{Sin\theta_i}{Sin\theta_r}[/tex]
where,
η = refractive index = 1.5
[tex]\theta_i[/tex] = angle of incidence = ?
[tex]\theta_r[/tex] = angle of refraction = 15°
Therefore,
[tex]1.5 = \frac{Sin\theta_i}{Sin15^o}\\\\Sin\theta_i=(1.5)Sin15^o\\\\\theta_i = Sin^{-1}(0.388)\\\\[/tex]
[tex]\theta_i = 23^o[/tex]
I will give the brainiest for the one who answers it first and CORRECTLY! (pls don't just randomly put any answer just to get points!) Select the correct answers. Which TWO statements are true about generators?
. They covert motion energy to electric energy
. They have a pair of magnets and a rotating metal coil
. They're powered by fossil fuels
.They convert electric energy to motion energy
.They use the relative motion of magnet and coil of wire
Answer:The true statements about generators would be :
They convert motion energy to electric energy
They use the relative motion of a magnet and a coil of wire.
Explanation:
Generators use the energy of the rotating coil in relative motion with magnets to induce a current within the wire. Generators are devices that convert energy into a voltage by the relative motion of the magnet and a coil that changes flux.
Which process is represented inside of the dashed circle?
Evaporation
Condensation
Precipitation
Transpiration
1. Define cellular respiration, and state where it takes place.
Identify the three stages of cellular respiration.
2.How many molecules of ATP are produced in each stage?
3. Explain how cellular respiration and photosynthesis are related.
4. Compare and contrast aerobic and anaerobic respiration.
PLEASE HELP ILL MARK BRAINLIEST
Answer:
1. Cellular respiration is the process in which cells break down glucose, release the stored energy, and use it to make ATP. The process begins in the cytoplasm and is completed in a mitochondrion. Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.
2. How much ATP is produced in all three stages combined? Glycolysis produces 2 ATP molecules, and the Krebs cycle produces 2 more. Electron transport from the molecules of NADH and FADH2 made from glycolysis, the transformation of pyruvate, and the Krebs cycle creates as many as 32 more ATP molecules.
3. Photosynthesis converts carbon dioxide and water into oxygen and glucose. ... Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
4. Aerobic respiration takes place in presence of oxygen; whereas anaerobic respiration takes place in absence of oxygen. Carbon dioxide and water are the end products of aerobic respiration, while alcohol is the end product of anaerobic respiration. Aerobic respiration releases more energy than anaerobic respiration.
The velocity of a given wave remains the same while the wavelength increases. What happens to the frequency of the wave?
A. It increases proportionally to the wavelength.
B. It decreases proportionally to the wavelength.
C. Because frequency is the reciprocal of time it increases.
D. None of the above.
Answer:
B. It decreases proportionally to the wavelength
Explanation:
The relationship between wavelength, velocity, and frequency of a wave is given as;
[tex]f = \frac{v}{\lambda}[/tex]
where;
f is the frequency of the wave
v is the velocity of the wave
λ is the wavelength
From the equation above, the frequency of a wave is inversely proportional to its wavelength. As the wavelength increases, the frequency decreases and vice versa.
Therefore, the correct option is "B"
B. It decreases proportionally to the wavelength
A rock is thrown down from the top of a cliff with a velocity of 3.61 m/s (down). The cliff is 28.4 m above the ground. Determine the velocity of the rock just before it hits the ground.
The velocity of the rock just before it hits the ground is approximately 23.87m/s.
What is the velocity of the rock just before it hits the ground?From the third equation of motion;
v² = u² + 2gs
Where u is initial velocity, v is final velocity, g is acceleration due to gravity ( g = 9.8m/s² ) and s is distance covered.
Given the data in the question;
Initial velocity u = 3.61m/sHeight of cliff s = 28.4mFinal velocity v = ?To determine the final velocity, plug the given values into the equation of motion above.
v² = u² + 2gs
v² = ( 3.61m/s )² + ( 2 × 9.8m/s² × 28.4m )
v² = 13.0321m²/s² + 556.64m²/s²
v² = 569.6721m²/s²
v = √( 569.6721m²/s²)
v = 23.87m/s
Therefore, the final velocity of the object is 23.87m/s.
Learn more about Equations of Motion here: brainly.com/question/18486505
#SPJ1
How much kinetic energy is required to break through?
Explanation:
The natural environment or natural world encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth
Sound travels through air at 343 m/s at 20 °C. A bat emits an ultrasonic squeak and hears the echo 0.05 second later . How far away was the object that reflected it?
Answer:
8.575 m
Explanation:
speed = distance/time
distance -- 2d
343 = 2d/0.05
2d = 17.15
d = 17.15/2
d = 8.575
Thenks and mark me brainliest :))
0.160-kg hockey puck is moving on an icy, frictionless, horizontal surface. At t 0, the puck is moving to the right at 3.00 m/s. (a) Calculate the velocity of the puck ( magnitude and direction) after a force of 25.0 N directed to the right has been applied for 0.050 s. (b) If, instead, a force of 12.0 N directed to the left is applied from 0 tot 0.050s, what is the final velocity of the puck
Answer: [tex](a)10.812\ m/s\ (b)\ 0.75\ m/s\ \text{left}[/tex]
Explanation:
Given
Mass of hockey puck [tex]m=0.160\ kg[/tex]
Initial velocity of hockey puck is [tex]u=3\ m/s[/tex]
First a horizontal force of [tex]25\ N[/tex] is applied to the right for [tex]0.05\ s[/tex]
acceleration associated with it is
[tex]\Rightarrow a=\dfrac{25}{0.160}\\\\\Rightarrow a=156.5\ m/s^2[/tex]
Using equation of motion i.e.
[tex]\Rightarrow v=u+at\\\Rightarrow v=3+156.25\times 0.05\\\Rightarrow v=3+7.812\\\Rightarrow v=10.812\ m/s[/tex]
(b) When a force of [tex]12\ N[/tex] is applied for 0.05s
Using equation of motion i.e.
[tex]\Rightarrow v=3-\dfrac{12}{0.160}\times 0.05\\\\\Rightarrow v=3-75\times 0.05\\\Rightarrow v=3-3.75\\\Rightarrow v=-0.75\ m/s\\\Rightarrow v=0.75\ \text{towards left}[/tex]
Is it important to constantly stay connected for you?
Answer:
no
Explanation:
A __________ is a push or pull.
Answer:
force
Explanation:
Force is a push or a pull of an object that causes the object to speed up, slow down, or stay in one place. In other words, a force is what causes an object to move. Friction and gravity are two types of forces that influence how an object moves.
Convert -40
F into C.
Answer:
40°Fahrenheit= 4.44°Celsius
1. calculate the speed of a wave that travels 10 cm in 4 seconds?
2. if a wave is moving with the speed of 10 cm/s, how far does it travel in 1.5 seconds?
3. what is the wavelength of a wave that has a speed of 40 cm/sand a frequency of 4 Hz?
4. what is the velocity of a wave that have a wavelength of 2 cm in if we can see him 25 Hz?
The force of gravity can be represented by the equation
. This equation is a statement of fact and holds true in every situation. Many experiments have been done involving this equation, and no experiment has ever yielded data that have not supported it.
The force of gravity can be best described as a(n)
experiment.
hypothesis.
theory.
law.
Answer:
law
Explanation:
A law is a scientific statement that describes a proven fact about how things function in nature
a
what is the weight of air inside a spherical balloon
of radius 2 meters? The density of air is 1.29 kg /m^3
Spherical balloon
m = 43.2 kg
Explanation:
volume of sphere = (4/3)pi(r)^3
= (4/3)(3.14)(2 m)^3
= 33.5 m^3
density = mass/volume
or solving for mass m,
m = (density)×(volume)
= (1.29 kg/m^3)(33.5 m^3)
= 43.2 kg
The weight of air inside this spherical balloon is equal to 423.75 Newton.
Given the following data:
Density of air = 1.29 [tex]kg /m^3[/tex]Radius of balloon = 2 metersTo determine the weight of air inside this spherical balloon:
First of all, we would calculate the volume of this spherical balloon by using this formula:
[tex]Volume = \frac{4}{3} \pi r^3\\\\Volume = \frac{4}{3} \times 3.142 \times 2^3\\\\Volume = \frac{32 \times 3.142}{3}[/tex]
Volume = 33.52 cubic meters.
Next, we would calculate the mass of air contained in this spherical balloon:
[tex]Mass = density \times volume\\\\Mass = 1.29 \times 33.52[/tex]
Mass = 43.24 kg
For the weight of air:
[tex]Weight = mg\\\\Weight = 43.24 \times 9.8[/tex]
Weight = 423.75 Newton
Read more on weight here: https://brainly.com/question/366299
For the mirror configuration below, the angle of incidence for the going towards the mirror on the right is 15 degrees. What is the angle of reflection for the light ray leaving the mirror on the bottom
Answer:
Thus, the angle of reflection is 15 degrees.
Explanation:
Angle of incidence, i = 15 degrees
The angle of incidence is the angle between the normal to the mirror and the incident ray, the angle of reflection is the angle between the reflected ray and the normal to the mirror.
According to the laws of reflection, the angle of incidence is equal to the angle of reflection.
Thus, the angle of reflection = angle of incidence = 15 degrees