4. What is the purpose of the corneal reflex?​

Answer:

Which surface applied the greatest force of friction on the object?

Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force.

I hope you helped>_<

Answer:

Its A

Explanation:

Thats because federalists wanted to take away rights. But the fathers wanted to definitely ensure that each person had equal rights and liberty.

Answer:

The answer should be light or other electromagnetic radiation

Explanation:

Such as x-rays or other things like that.

-Hope This Helps!

-Justin:)

A geostrophic flow is a type of motion in the atmosphere or ocean that is influenced by the Coriolis force and the pressure gradient force. The Coriolis force arises due to the rotation of the Earth and causes the fluids to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.

The pressure gradient force, on the other hand, is responsible for the movement of air or water from high pressure to low pressure regions. In a geostrophic flow, these two forces are balanced, resulting in a steady and straight flow along the contour lines of constant pressure.

The geostrophic flow is an important concept in meteorology and oceanography as it helps to explain the large-scale circulation patterns of the Earth's atmosphere and oceans. This type of flow can be observed in high-altitude winds, ocean currents, and weather systems such as hurricanes and cyclones. Understanding the dynamics of geostrophic flow is crucial for predicting weather patterns and studying the Earth's climate system.

To Learn more about  geostrophic flow. Click this!

brainly.com/question/28314662

#SPJ11

The main reason a person weighs less at the equator than at the poles is due to the Earth's rotation, which causes a centrifugal force at the equator due to law of planet motion.

This centrifugal force is caused by the Earth's rotation around its axis, which is faster at the equator than at the poles. As a result, objects at the equator are moving faster and experience a weaker gravitational pull towards the Earth's center compared to objects at the poles due to law of planet motion.

The difference in gravitational force between the equator and the poles is relatively small, around 0.5%, but it is still measurable. The gravitational force at the poles is stronger because the Earth's rotation is slower there, so there is less centrifugal force pushing objects away from the Earth's center.

The influence of the Sun, Moon, and planets on a person's weight is much smaller than the effect of the Earth's rotation. These celestial bodies do have an effect on the Earth's gravitational field, but their impact is relatively minor compared to the Earth's rotation.

Learn more about planet here:

https://brainly.com/question/13851553

#SPJ4

Answer:

A. Repeating an experiment to verify results

Explanation:

A scientific theory may be defined as the theory of science that is a thought out explanation of the observations done in the nature or that happens in the natural world. They are constructed using several scientific methods by observing many facts and hypothesis.

According to the question, repeating of an experiment a number of times and verifying its result may help in improving a scientific theory as if we get the similar result for each experiments, then it confirms the basis of the hypothesis or the facts that are observe in the nature and conclude a scientific theory.

Answer:

b

Explanation:

26) Energy is a scalar quantity. Option 2

27) Energy is measured in the same unit as work. Option 4

28) The unit that is correctly paired is work. Option 4

29) The unit of gravitational potential energy is Joule. Option 4

30) The greatest gravitational potential energy is possessed by the object that is 6Kg at a height of 5 m. Option 4

31) he gravitational potential energy and the speed decreases. Option 1

We know that when we talk about a quantity in physics, our minds should be able to go to something that can be measured. In Physics we can be able to classify the quantities that we have into the vector quantities and the scalar quantities.

The vector quantities are the ones that have both a magnitude and a direction while the scalar quantities are the ones that have only a magnitude but do not have a direction that is attached to them.

The unit of the quantity can be used to deduce the dimensions of the quantity that we are looking at and this is key when we are looking at the relationship between the quantities in an equation.

Learn more about vectors:https://brainly.com/question/29740341

#SPJ1

Answer:

20 meters per second.

Explanation:

200/10

Answer:

the answer is B

visible light

The correct answer is: a) The light bulb is brightest when the middle of the magnet is in the middle of the coil.

This phenomenon is known as Faraday's law of electromagnetic induction, which states that a changing magnetic field induces an electromotive force (EMF) in a nearby conductor. When the magnet is moved through the coil, the magnetic flux through the coil changes, which induces an EMF in the coil according to the law. The magnitude of the EMF is proportional to the rate of change of the magnetic flux.

When the magnet is in the middle of the coil, the magnetic flux through the coil is changing at its maximum rate. Therefore, the induced EMF and the current through the bulb are at their maximum, making the bulb the brightest. As the magnet moves away from the middle of the coil, the rate of change of the magnetic flux decreases, and so does the brightness of the bulb.

So, the correct answer is a) The light bulb is brightest when the middle of the magnet is in the middle of the coil.

Learn more about Faraday's law:

https://brainly.com/question/1640558

#SPJ11

A. The loss of potential energy for the stone is 1.764 J

B. The speed of the stone as it hits the water is 5.42 m/s

We'll begin by obtaining the initial potential energy. Details below:

PE₁ = mgh₁

PE = 0.12 × 9.8 × 1.5

PE = 1.764 J

Finally, we shall determine the loss of potential energy. This is shown below:

ΔPE = PE₁ - PE₂

ΔPE = 1.764 - 0

ΔPE = 1.764 J

Thus, the loss of potential energy is 1.764 J

The speed of the stone as it hits the water can be obtained as follow:

KE = ½mv²

1.764 = ½ × 0.12 × v²

1.764 = 0.06 × v²

Divide both side by 0.06

v² = 1.764 / 0.06

Take the square root of both side

v = √(1.764 / 0.06)

v = 5.42 m/s

Thus, the speed is 5.42 m/s

Learn more about potential energy:

https://brainly.com/question/22274239

#SPJ1

Answer:

76*

Explanation:

Answer:

Q= 31,798.4

Explanation:

You would use the specific heat formula which is Q=mCΔt

m(mass)=100

C(Specific heat capacity)= 4.184

Δt(change in temperature)=24-100=-76 or just 76 in this case

so Q=(100)(4.184)(76)=

418.4(76)=31,798.4

Therefore the missing value Q(heat lost or gained) equal 31,798.4

Hope that helped! xoxo

Using speed, distance, time relation, The Space Shuttle covers approximately 8 football fields in the blink of an astronaut's eye.

The speed of something or someone is how swiftly they are moving. You can determine something's average speed if you know how far it has traveled and how long it took to get there. Speed is determined by the formula: speed = distance time. Calculating the units for speed requires knowledge of the units for both time and distance.

The equation speed = distance time can be altered, just like any other equation.

The formula can be set up in one of three ways:

Distance is determined by time and speed.

Time and speed both affect distance.

Time = Speed x Distance

To compute one of the variables, we require the other two (speed, distance, or time).

For instance, we need to know the distance traveled and the speed at which movement occurs in order to calculate the travel time.

To find out how many football fields the shuttle covers in one blink of an eye, we need to divide the distance it travels in 116 ms by the length of one football field.

First, let's find the distance:

distance = speed x time

distance = 6.38 ×  m/s × 116 ms

distance = 738.88 m

Next, let's divide the distance by the length of a football field:

distance ÷ length of a football field

738.88 m ÷ 91.4 m  = 8.09 football fields

So the Space Shuttle covers approximately 8 football fields in the blink of an astronaut's eye.

To know more about distance, speed, and time, check out:

brainly.com/question/29678530

#SPJ4

Answer:

A: It decreased trade because soldiers no longer protected the oases.

I took it on E2020. I hope I've helped. If you need further explanation, please comment below.  

Answer:

Yes it is A

It decreased trade because soldiers no longer protected the oases.

Explanation:

The electric field vector at a point P located directly below a single negative point source charge Q is directed upward.

The direction of the electric field around a point charge depends on the charge of the source. In this case, since the source charge Q is negative, the electric field lines radiate outward from the charge in all directions.

At a point directly below the negative source charge, the electric field vectors will point directly away from the charge, which is upward. This is because the negative charge repels negative charges and attracts positive charges.

The electric field vector indicates the direction in which a positive test charge would move if placed at that point. Since the source charge is negative, a positive test charge placed at point P would experience a repulsive force and be pushed away from the source charge, resulting in an upward direction for the electric field vector.

Therefore, the electric field vector at a point directly below a negative point source charge Q point upward.

To know more about vector, refer here:

https://brainly.com/question/29740341#

#SPJ4

The electric and magnetic fields associated with a plane wave in a lossless material medium (ε=ε0εr, µ=µ0µr) are governed by Maxwell's equations.

In such a medium, the electric field E and magnetic field H oscillate in phase and are mutually perpendicular to each other and the direction of wave propagation.

The material properties, relative permittivity (εr) and relative permeability (µr), determine the speed of the wave and its impedance. The speed of the wave (v) can be found using the equation v=1/√(ε0εrµ0µr).

The wave impedance (Z) is given by Z=√(µ0µr/ε0εr). Plane waves in lossless materials do not experience any attenuation, ensuring that the energy carried by the wave remains constant as it propagates through the medium.

To learn more about : magnetic fields

https://brainly.com/question/26257705

#SPJ11

Answer:

Explanation:

To find how long it took we use the formula

\(t = \frac{d}{v} \\ \)

d is the distance

v is the velocity

From the question we have

\(t = \frac{30}{15} \\ \)

We have the final answer as

Hope this helps you

As the diameter of the wire approaches to zero, the resisitance approaches  infinity.

Electrical resistance is the physical capacity of any body to oppose the flow of electric current even when there is an applied potential difference, capacity calculated by Ohm's First Law, and, according to the International System of Units (IS), is measured in ohms.

With that being said, and knonwing that:

R = Resistance; p = Resistivity; L = Length; d = Diameter

It is possible to calculate the resistance of the wire by:

\(R = p\frac{L}{A}\)

Where A is calculated by:

\(A = \frac{\pi d^{2} }{4}\)

Changing in the first formula:

\(R = p\frac{L}{\pi d^{2} } \\\\R = p\frac{4L}{\pi d^{2} }\)

Knowing that when the diameter tends to zero resistance tends to infinity, it is possible to say that resistance of the wire will tend to infinity when the diameter approaches zero.

See more about eletromagnetism at: https://brainly.com/question/13407121

#SPJ1

Answer:

The resistance approaches infinity.

Explanation:

100% Correct

Answer:

The block that is dropped straight down will have the greatest speed before hitting the ground. This is because it has no initial horizontal velocity, so all of its potential energy is converted into kinetic energy as it falls. The other blocks have some initial horizontal velocity, so some of their potential energy is converted into kinetic energy in the horizontal direction. This means that they will have a lower speed when they hit the ground.

Explanation:

The potential energy of an object is given by the equation:

PE = mgh

KE = 1/2 mv^2

When an object is dropped, its potential energy is converted into kinetic energy. The equation for the conservation of energy can be used to express this relationship:

PE = KE

mgh = 1/2 mv^2

v^2 = 2gh

v = sqrt(2gh)

The velocity of an object that is dropped is directly proportional to the square root of the height from which it is dropped.

The blocks in the question are all dropped from the same height. However, the block that is dropped straight down has no initial horizontal velocity. The other blocks have some initial horizontal velocity. This means that the block that is dropped straight down will have a greater speed when it hits the ground than the other blocks.

Learn more about Projectile Motion.

https://brainly.com/question/32657362

#SPJ11

For the honeybee that circles a field looking for a flower upon which to land, we have:

a) The tangential velocity is 10.01 m/s.

b) The centripetal acceleration is 40.1 m/s².

c) The centripetal force is 1.60 N.

a) The tangential velocity can be calculated as follows:

\( v = \omega r = \frac{2\pi r}{T} \)  (1)

Where:

r: is the radius of the circle = 2.5 m

ω: is the angular velocity = 2π/T

T: is the period = 1.57 s

By entering the above values into equation (1), we have:

\( v = \frac{2\pi r}{T} = \frac{2\pi 2.5 m}{1.57 s} = 10.01 m/s \)  

Hence, the tangential velocity is 10.01 m/s.

b) The centripetal acceleration is related to the tangential velocity as follows:

\( a_{c} = \frac{v^{2}}{r} = \frac{(10.01 m/s)^{2}}{2.5 m} = 40.1 m/s^{2} \)

Therefore, the centripetal acceleration is 40.1 m/s².

c) The centripetal force is given by:

\( F = ma_{c} \)

Where:

m: is the honeybee's mass = 0.04 kg

\( F = ma_{c} = 0.04 kg*40.1 m/s^{2} = 1.60 N \)

Hence, the centripetal force is 1.60 N.

Find more here:

I hope it helps you!

Answer:

what are the results? Also

Explanation:

The distribution of touch receptors in human skin is not consistent over the body. In humans, touch receptors are less dense in skin covered with any type of hair, such as the arms, legs, torso, and face.  If two points are felt as two separate points, each is in the receptive field of two separate sensory receptors.

Electromagnetic waves (EMW) are reflected and attenuated by obstacles such as buildings, tunnels, walls, mountains, and other physical structures. At home, you can use the remote control (remote) for the television receiver as an example. The remote's lens can also attenuate and reflect EMW.

The remote control emits an infrared light beam that travels from the remote to the TV's receiver. If the remote control is aimed directly at the receiver, the receiver can detect the infrared light beam and execute the command accordingly.However, if the remote's lens is obstructed by an object, the light beam is weakened, attenuated, or even reflected, resulting in the TV not responding to the remote control's command.

The obstacle that obstructs the light beam reflects and attenuates the EMW, rendering the signal too weak for the receiver to detect.In conclusion, electromagnetic waves (EMW) can be attenuated or reflected by physical obstacles such as buildings, walls, mountains, and other structures. Remote controls are a common example of how EMW can be obstructed by an object and, as a result, weaken or reflect.

To know more about object visit:

https://brainly.com/question/31018199

#SPJ11

Hello!!

For this, use the formula:

\(\boxed{I=V/R}\)

\(\textbf{Being:}\)

\(\sqrt{}\) \(I = Current = ?\)

\(\sqrt{}\) \(V = Voltage = 160 \ V\)

\(\sqrt{}\) \(R = Resistance = 10\ \varOmega\)

\(\textbf{If we replace and resolve it}\)

\(I = 160\ V / 10\ \varOmega\)

\(I = 16\ A\)

\(\text{The current of that circuit is \textbf{16 Amperes}}\)

Answer:

4 smaller disks

Explanation:

We are given;

Mass of smaller and larger disks = M

Radius of smaller disk = R

Radius of larger disk = 4R

Formula for moment of inertia about cylinder axis is:

I = ½MR²

Thus;

For small disk, I_small = ½MR²

For large disk, I_large = ½M(2R)² = 2MR²

We are told that moment of inertia of System A consists of two of the larger disks. Thus;

I_A = 2 × I_large = 2 × 2MR²

I_A = 4MR²

We are also told that System B consists of one of the larger disks and a number of the smaller disks. Thus;

I_B = I_large + n(I_small)

Where n is the number of smaller disks.

I_B = 2MR² + n(½MR²)

I_B = MR²(2 + n/2)

We are told that the moment of inertia for system A equals the moment of inertia for system B. Thus;

I_A = I_B

So;

4MR² = MR²(2 + n/2)

MR² will cancel out to give;

4 = 2 + n/2

Multiply through by 2 to give;

8 = 4 + n

n = 8 - 4

n = 4

Answer:

h= 0.45 m

Explanation:

PE= 1/2 mv^2             KE= mgh

v= 3m/s

vf= 0 m/s

h=?

PE= 1/2(1kg)(3m/s)^2

PE= 4.5 J

4.5 J/ 1kg(9.8 m/s^2)

h=0.45 m

The height of the ball above the ground when it stops is 0.46 m.

The initial kinetic energy of the ball is equal to the final potential energy of the ball.

⇒ Formula:

⇒ Where:

⇒ make h the subject of the equation

From the question,

⇒ Given:

⇒ Substitute these values into equation 2

Hence, the height of the ball above the ground when it stops is 0.46 m.

Learn more about height here: https://brainly.com/question/12446886

Answer:

That it will always work on earth.

Explanation:

If it's on earth it will not be able to elude gravity.

That's all i've got sorry

Explanation:

The emf is equal to the work done on the charge per unit charge (ϵ=dWdq) when there is no current flowing. Since the unit for work is the joule and the unit for charge is the coulomb, the unit for emf is the volt (1V=1J/C).

Answer:

The EMF or electromotive force is the energy supplied by a battery or a cell per coulomb (Q) of charge passing through it. The magnitude of emf is equal to V (potential difference) across the cell terminals when there is no current flowing through the circuit. (byjus)

Explanation:

Using, spectroscopy, astronomers identified a new element in the sun (one that was only later found on earth). today, this element is called helium.

Because it revealed that the sun was made of substances that were absent from the Earth, the discovery of helium in the sun is regarded as one of the greatest achievements of spectroscopy. This proved that the sun is not constructed of the same materials as the Earth, which was a major accomplishment in the area of astronomy.

French astronomer Jules Janssen and British astronomer Joseph Norman Lockyer made the discovery of helium in the sun in 1868. They noticed a yellow spectral line in the sun's spectrum that had no known Earthly chemical explanation. They came to the conclusion that a new element, which they dubbed helium after the Greek word for the sun, "helios," was responsible for producing this line.

To know more about spectroscopy, click here,

brainly.com/question/14854785

#SPJ4