Optical variable tau influences leg movement initiation when crossing a street by providing a visual motion signal that helps estimate time to collision (TTC) and determine the right time to start stepping onto the curb.
When you walk across a street, the optical variable tau influences the initiation of your leg movement to step up onto the curb on the basis of the distance between your feet and the curb. Optical variable tau is the visual motion signal used by the nervous system to estimate time to collision (TTC). The TTC is the time it will take for a person to reach a particular point while walking. The optical variable tau helps a person to determine the right time to initiate leg movement when crossing the street. The initiation of leg movement depends on the speed and distance from the curb. As the speed of walking and the distance from the curb decreases, the TTC increases. The greater the TTC, the greater the time the nervous system needs to prepare and initiate the leg movement. Therefore, the initiation of leg movement is based on the TTC that is dependent on the optical variable tau.For more questions on motion
https://brainly.com/question/30767410
#SPJ8
Acceleration is the rate of change in the speed of an object. To determine the rate of acceleration, you use the formula below. The units for acceleration are meters per second per second or m/s2.
Explanation:
Acceleration is the rate of change in the speed of an object. If initial and final speed are v₁ and v₂. It changes speed in time t. Its formula is given by :
\(a=\dfrac{v_2-v_1}{t}\)
The problem is "A skater increases her velocity from 2.0 m/s to 10.0 m/s in 3.0 seconds. What is the skater’s acceleration? "
In this problem,
v₁ = 2 , v₂ = 10 m/s and t = 3 s
Acceleration of the object,
\(a=\dfrac{10-2}{3}\\\\a=2.67\ m/s^2\)
So, the acceleration of the skater is \(2.67\ m/s^2\).
difference between universal law of gravitation and acceleration due to gravity
Explanation:
The acceleration on an object due to the gravity of any massive body is represented by g (small g). The force of attraction between any two unit masses separated by unit distance is called universal gravitational constant denoted by G(capital g). The relation between G and g is not proportional. That means they are independent entities.
G and g
In physics, G and g can be related mathematically as –
\(g=\frac{GM}{R^{2}}\)
Where,
1=g is the acceleration due to the gravity of any massive body measured in m/s2.
2=G is the universal gravitational constant measured in Nm2/kg2.
3=R is the radius of the massive body measured in km.
4=M is the mass of the massive body measured in Kg.
A 222 kg snowmobile is traveling at 24.21 m/s. How fast would a 306.3 kg snowmobile need to travel in order to have the same momentum?
The velocity is 17.5 m/s.
What is the momentum?Momentum is a measure of an object's motion and is defined as the product of its mass and velocity. It is a vector quantity, meaning it has both magnitude and direction.
Momentum of the snowmobile = 222 kg * 24.21 m/s.
= 5374.62 Kgm/s
Velocity of the other snowmobile = 5374.62 Kgm/s/306.3 kg
= 17.5 m/s
Thus we observe that the momentum can be used to obtain the velocity of the object we have here. In physics, momentum is a vector quantity, meaning it has both magnitude and direction.
Learn more about momentum:https://brainly.com/question/30487676
#SPJ1
you wake up in a spaceship feeling being pushed down to the floor. what could be the possible cause?
There could be a few possible causes for feeling pushed down to the floor while waking up in a spaceship. One possibility is: that the spaceship is experiencing a sudden acceleration or change in velocity, causing the sensation of increased gravity or g-forces.
Another possibility is that the artificial gravity system on the spaceship is malfunctioning, resulting in an increase in the force of gravity felt by the occupants.
Alternatively, the sensation could be a result of waking up in a low-gravity environment after being used to Earth's higher gravity, which can cause a feeling of heaviness or difficulty moving at first.
It is probable that the spaceship is encountering a sudden acceleration or velocity change, resulting in an increased sensation of gravity or g-forces. The artificial gravity system on the spaceship might also be malfunctioning, resulting in an increase in the gravitational force felt by the occupants.
Lastly, waking up in a low-gravity environment after being used to Earth's higher gravity can cause a sensation of heaviness or difficulty moving at first.
To learn more about "low-gravity environment" here:
https://brainly.com/question/26906545#
#SPJ11
What is the efficiency of a worm gear reducer if input torque is 6532 inch-pounds and output torque is 5623 inch-pounds?
Th efficiency of the worm gear reducer if input torque is 6532 inch-pounds would be 86%.
What is Worm gearWorm gears are a common power-transmission component used to reverse the direction of a rotating shaft's motion as well as to reduce speed and increase torque between non-parallel rotating shafts.
They are used on shafts with axes that are perpendicular and do not intersect.
What is a worm gear reducer’s efficiency?Worm gears typically have a ratio range of 5:1 to 60:1.
How effective is a single worm set?
The efficiency of a single worm set varies with ratio and speed; this efficiency can vary from 40 to 93%.
Calculationn = Output/input x 100
= 5623/6532 x 100
= 0.86 x 100
= 86%
Thus, the efficiency is calculated as 86%
To know more about efficiency visit:
https://brainly.com/question/13828557
#SPJ4
tom and his group were making a poster for their classroom to depict the way that electricity and magnetism work together which of the following should the group to their poster
Currents can be created by magnetic fields. A current is capable of creating a magnetic field.
What are the interactions between electricity and magnetism?Magnetic fields are constantly shifting, pushing and pulling electrons. Metals like copper and aluminium have slackly held electrons. As a magnet is moved around a wire or a coil of wire, the electrons in the wire are pushed, creating an electrical current.
Is sound energy potential or kinetic?Sound energy can be made up of both kinetic and potential energy. A musical instrument is one possible illustration. When the instrument is performed, sound waves are produced that have kinetic energy. Nevertheless, potential energy is all that is present when that same musical instrument is at rest.
To know more about magnetic field visit:-
brainly.com/question/24397546
#SPJ1
What is the pH of a solution of H2SO4 that has [H3O ] = 5. 45 × 10–5 M?.
The pH of the solution is approximately 4.26.
What is the pH of a solution of H2SO4 that has [H3O ] = 5. 45 × 10–5 M?.The pH scale is a logarithmic scale that measures the acidity or alkalinity of a solution. It is based on the concentration of hydronium ions ([H3O+]) in the solution. The formula to calculate pH is:
pH = -log[H3O+]
In your case, the concentration of hydronium ions is given as [H3O+] = 5.45 × 10^(-5) M.
To find the pH, we need to take the negative logarithm (base 10) of the hydronium ion concentration. Using a scientific calculator or logarithmic tables, we can calculate:
pH = -log(5.45 × 10^(-5))
The negative sign is included in the formula because the pH scale is defined as the negative logarithm of the hydronium ion concentration.
Evaluating the logarithm, we find:
pH ≈ -(-4.261)
The double negative sign cancels out, resulting in:
pH ≈ 4.261
Therefore, the pH of the solution is approximately 4.261. This indicates that the solution is acidic since a pH below 7 is considered acidic on the pH scale.
Learn more about pH
brainly.com/question/2288405
#SPJ11
Which law describes what happens when two skaters push apart in a
rink? (Newton’s laws)
Answer:
Newton's third law
Explanation:
Newton's Third Law of equal and opposite forces is very important when considering collisions between objects or propulsion. In these situations, all of the forces are internal, which means that for every force, there will be an equally sized force in the opposite direction. An example is two skaters out on the ice.
BRAINLIEST OF CORRECT
Match the atom to the number of electrons it is likely to gain/lose,
Answer:
Na: lose 1
O: gain 2
Al: lose 3
Be: lose 2
N: gain 3
Cl: depends on the limit of your study im grade nine and the energy level M can hold only eight electrons so i would have answered (gain 1)
Explanation:
The atoms according to the number of electrons it will lose or gain is matched as follows;
Sodium → lose 1
Nitrogen → gain 3
Sulphur → gain 2
Fluorine → gain 1
Boron → lose 3
Beryllium → lose 2
Atoms
Atoms are the building block of matter. The outermost electron of an atom determines the number of electron an atom loose during bonding. Therefore,
Na(sodium) with an outermost electron of one will lose 1 electron to attain the octet rule.Nitrogen with an outermost electron of 5 will easily gain 3 electrons to attain the octet ruleSulphur(S) with an outermost electron of 6 will easily gain 2 electrons to attain the octet ruleFluorine with an outermost electron of 7 will easily gain 1 electrons to attain the octet rule Boron with an outermost electron of 3 will easily loose 3 electrons to attain the octet ruleBeryllium with an outermost electron of 2 will easily loose 2 electrons to attain the octet rulelearn more on electrons here:https://brainly.com/question/5141076
Two planets X and Y travel counterclockwise in circular orbits about a star, as seen in the figure. The radii of their orbits are in the ratio 2:1. At some time, they are aligned, as seen in (a), making a straight line with the star. Five years later, planet X has rotated through 90.9°, as seen in (b). By what angle has planet Y rotated through during this time?
By 272.7 degrees angle has planet Y rotated through during this time.
What is Kepler's 3rd law?The cubes of the semi-major axes of the planets' orbits are precisely proportional to the squares of the planets' orbital periods. According to Kepler's Third Law, as an orbiting planet's radius rises, so does the time of its orbit around the Sun.
Using Kepler's 3rd law, which says that the period of any planet's orbit squared is proportional to the radius of the orbit cubes, we can establish that
(period X / period Y)^2 = (radius X / radius Y)^3
(period X / period Y)^2 = 2^3 = 8
take sq root
period X / period Y = √8 = 2.82≅ 3
this means it takes planet X 2.82≅ 3 times longer to go through one orbit... so planet Y travels 2.82≅ 3 times as far (in its orbit...) as planet X!
This means...
planet Y travels 3 * 90.9 = 272.7 degrees
to learn more about Kepler's 3rd law go to - https://brainly.com/question/16705471
#SPJ4
the __________ travel(s) from the subtropical high to the equator.
The trade winds travel from the subtropical high to the equator. The trade winds are prevailing winds that blow from the subtropical high-pressure areas towards the equator.
These winds are characterized by their consistent direction and strength, and they play a crucial role in global atmospheric circulation patterns. The subtropical high-pressure zones are regions of high atmospheric pressure located around 30 degrees latitude in both the Northern and Southern Hemispheres. As air rises at the equator due to intense heating, it creates a low-pressure area. To equalize the pressure gradient, air flows from the subtropical high-pressure zones towards the equator, forming the trade winds. The trade winds are named so because they were historically used by traders sailing across the oceans for their reliable and consistent nature. They are characterized by their easterly direction, blowing from east to west in both hemispheres. The trade winds are an integral part of the global atmospheric circulation system and have a significant impact on climate patterns and ocean currents.
Learn more about trade winds here
https://brainly.com/question/1558204
#SPJ11
What is the voltage drop across the 30 q resistor?
A. 120 v
B. 30 V
c. 2 v
D. 60 V
Answer:
120v 120v 120v 120v 120v
7. The different colors of the visible light spectrum
coalesce to make white light. What is the best
synonym for "coalesce?"
a. Divide
b. Separate
c. Combine
d. End up
The best synonym for "coalesce" in the context provided is "combine."
To understand why "combine" is the most appropriate choice, let's examine the meanings of the given options.
a. Divide: This word conveys the opposite meaning of "coalesce." It refers to the act of separating or splitting something into two or more parts.
b. Separate: Similar to "divide," this word implies the act of dividing or setting apart different components or entities.
c. Combine: This word aligns closely with the meaning of "coalesce." It signifies the merging or bringing together of different elements or entities to form a unified whole. In the context of the visible light spectrum, the various colors combine to create white light.
d. End up: This phrase does not capture the essence of "coalesce" accurately. "End up" suggests a result or outcome without explicitly emphasizing the process of merging or combining.
Considering the provided options, "combine" is the most suitable synonym as it reflects the idea of the different colors of the visible light spectrum coming together to form white light. Therefore, the correct choice is c. Combine.
For more questions on coalesce, click on:
https://brainly.com/question/28150659
#SPJ8
The electric current through a wire varies with time as shown
The total charge flown across any cross section of the wire in time interval 0-T is
The total charge flown across any cross section of the wire in time interval 0-T is determined from the area under the curve as ¹/₂i₀T.
option (2) is the correct answer.
What is the total current flowing in the wire?The total charge flown across any cross section of the wire in time interval 0-T is calculated as follows;
The total charge flowing = area under the curve
area under the curve = ¹/₂ x base of the triangle x height of the triangle
area under the curve = ¹/₂ x T x i₀
area under the curve = ¹/₂i₀T
Thus, the total charge flown across any cross section of the wire in time interval 0-T is determined from the area under the curve as ¹/₂i₀T.
Learn more about total charge here: https://brainly.com/question/14397213
#SPJ1
explain the oscillations or motion of both types of waves
PLEASE HELP THIS IS DUE TODAY If an element's atomic mass and atomic number are known, what else can be determined? Give an example to demonstrate your understanding.
Which skill is least useful on defense in basketball?
A.Jumping ability
B.Speed
C.Strength
D.Passing ability
he tangent plane to the surface z= 53−x 2
−2y 2
at the point (3,2,6).
To explain the tangent plane to the surface, `z = 53 − x² − 2y²` at the point `(3, 2, 6)`, let us first determine the partial derivatives of `z` with respect to `x` and `y`.
Partial derivative of `z` with respect to `x`, `∂z/∂x = -2x`Partial derivative of `z` with respect to `y`, `∂z/∂y = -4y`Now, let's find the gradient vector `grad z` at `(3, 2, 6)` and the value of `z` at `(3, 2)`.gradient vector `grad z = (-2x, -4y, 1)`gradient vector `grad z = (-6, -8, 1)` at `(3, 2, 6)`.Value of `z` at `(3, 2)` is given by `z = 53 - 3² - 2(2)² = 39`.
Therefore, the equation of the tangent plane to the surface `
z = 53 − x² − 2y²` at `(3, 2, 6)` is:
`z - 6 = -6(x - 3) - 8(y - 2)`
which can be written as:`6x + 8y + z = 50`Thus, the equation of the tangent plane to the surface `z = 53 − x² − 2y²` at the point `(3, 2, 6)` is `6x + 8y + z = 50`.
To know more about Partial derivative visit:-
https://brainly.com/question/32387059
#SPJ11
Electricity is defined by the following: energy made through the use of heat through a window. energy made by burning material energy made by the flow of electrical current through a conductor
Electricity is defined as the flow of electrical current through a conductor.
A fundamental type of energy that is produced by the presence and movement of electric charge is electricity. The passage of electrons or other charged particles across a conductor, like a wire, is what defines the phenomena. It includes the creation, transmission, and use of electric energy, as well as the full field of electric phenomena.
Therefore,
Electricity is defined as the flow of electrical current through a conductor.
To know more about electricity, click here:
https://brainly.com/question/12791045
#SPJ4
6. What is the uncertainty in position of a proton with mass 1.673 x 10-27 kg and kinetic energy 1.2 keV?
According to Heisenberg's Uncertainty Principle, it is impossible to determine the position and momentum of a particle with absolute certainty at the same time. The Uncertainty Principle is defined as Δx * Δp ≥ h/4π, where Δx is the uncertainty in position, Δp is the uncertainty in momentum, and h is Planck's constant.
For the given problem, the uncertainty in position of a proton with mass 1.673 x 10-27 kg and kinetic energy 1.2 keV can be calculated as follows:
We know that the momentum p of a particle is given by p = mv, where m is the mass of the particle and v is its velocity.
The kinetic energy of the proton can be converted to momentum using the equation E = p²/2m, where E is the kinetic energy.
1.2 keV = (p²/2m) (1 eV = 1.6 x 10^-19 J)
p²/2m = 1.92 x 10^-16 J
The momentum p of the proton can be calculated by taking the square root of both sides:
p = √(2mE) = √(2 x 1.673 x 10^-27 x 1.6 x 10^-16) = 7.84 x 10^-22 kg m/s
Using Heisenberg's Uncertainty Principle, we can calculate the uncertainty in position as follows:
Δx * Δp ≥ h/4π
Δx ≥ h/4πΔp
Substituting the values of h, Δp, and solving for Δx:
Δx ≥ (6.626 x 10^-34)/(4π x 7.84 x 10^-22)
Δx ≥ 2.69 x 10^-12 m
Therefore, the uncertainty in position of the proton is 2.69 x 10^-12 m.
To know more about momentum visit:-
https://brainly.com/question/30677308
#SPJ11
Help pls.!! and explain please
Answer:
so if it's 20 you should put 20 times 10 15 * 30 and 1.3 * 5 mg and if you put that milligrams in there it'll solve the destination I saw the white way you going so yeah just be careful at least you want to make the milligrams even a multimacy with the y i and replace it with the 14a
4. A 5000 N space probe weighs 1580 N on planet X. Calculate the gravitational field strength of this planet
Answer:
gravitationalforce=5000N
weight=1580N
Explanation:
weight=m×g
g=10m/s
1580=m×10
m=1580/10
m=158kg
gravitational field strengtg=force/mass
gravitationalfieldstrength=5000\158
31.6N/kg
6. Dentists use a soft, clay-like material to make a filling for a cavity. The filling stays soft under the
light of the dentist's lamp, but it hardens when the dentist shines an ultraviolet flashlight on it. Why
does light from the ultraviolet flashlight harden the filling when light from the lamp does not?
Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not.
What is ultravoilet ray?Ultraviolet Rays in the electromagnetic Spectrum Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.
Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of Vitamin C.
Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not,
Hence light from the ultraviolet flashlight harden the filling when light from the lamp does not.
To learn more about the ultravoilet ray refer to thr link;
https://brainly.com/question/25780677
(b) What is the probability that the electron can be detected in the middle one third of well, region (b)
In order to determine the probability that an electron can be detected in the middle one-third of a well region, we need to take into account the wave function and the boundary conditions.The wave function represents the probability density of finding the electron in a particular location within the well. The boundary conditions are determined by the geometry of the well, which can be rectangular, triangular, or other shapes.
The Schrodinger equation is used to calculate the wave function and determine the probability density of finding the electron in a particular location. The wave function is a complex function that describes the position and momentum of the electron. It is also used to calculate the energy of the electron in the well.The probability of finding the electron in the middle one-third of the well can be determined by integrating the probability density over the middle one-third of the well region. This will give us the probability of finding the electron in that region. The integral can be evaluated using numerical methods or analytical methods, depending on the complexity of the wave function and the boundary conditions.In general, the probability of finding the electron in the middle one-third of the well will depend on the shape of the well, the energy of the electron, and the boundary conditions. For example, if the well is rectangular and the electron is in the ground state, then the probability of finding the electron in the middle one-third of the well will be high. However, if the well is triangular and the electron is in an excited state, then the probability of finding the electron in the middle one-third of the well will be lower.For such more question on probability
https://brainly.com/question/13604758
#SPJ8
how does electricity work?
Answer:Electricity works by getting a bunch of conductor elements together and creating a flow of electron-stealing patterns through them. This flow is called a current. ... Once you can control the direction the electrons are going, you can use them to power or charge anything from a light bulb to your TV to your electric car.
Explanation:trust
When red light and green light are mixed, the color created is
Answer:
blue lighp
Explanation:
If a galaxy were shrunk down to the size of a paper plate, then the next nearest galaxy would be?
The next nearest galaxy would be if, a galaxy was shrunk down to the size of a paper plate less than 100 feet away, so option C is correct.
What is a galaxy?A galaxy is a vast collection of stars, solar systems, gas, and dust. Gravity holds a galaxy together. A supermassive black hole also resides in the center of our galaxy, the Milky Way. You see additional stars in the Milky Way as you look up at the stars in the night sky.
As we know that the size of our galaxy is 52,850 light years approx,
If we shrunk it to the size of a paper plate, which is 0.2286 meters,
The nearest galaxy is Andromeda Galaxy which is 2.5 million light-years away,
The distance of the nearest galaxy, d = 2.5 × 10⁶ light year
The distance of the nearest galaxy, d = 2.5 × 10⁶ × 9.4 × 10¹⁵ meters (1light year = 9.4 × 10¹⁵ meter),
Thus, as compared to miles, the foot is the smaller unit to represent,
Therefore, the next nearest galaxy would be less than 100 feet away.
To know more about the galaxy:
https://brainly.com/question/2516215
#SPJ12
Baker's weight and mass are measured on Earth and on the moon. Which measurement is the same in both places?
Answer: mass
The mass of a person is constant, weight is a force that is influenced by gravity.
What does an electromagnet do?
Name five (5) things.
Answer:
it is used on hard disk drives, speakers, motors, mri machines, and generators
Explanation:
there ya go
A lens with f = 35.0 cm is held
42.0 cm from an object. Where
does the image form?
Answer: 210 cm
Explanation:
Look up Thin Lens Equations Calculator- it helps!