The 10 diopter lens to be held closer to a piece of paper when focusing a distant object and diopter is unit of power of accomodation.
Two roughly fitting curved surfaces ground together will eventually become spherical spheres don’t bring parallel rays to a point this is called spherical aberration nearly axial rays (paraxial rays).
Two types of lens Convex and concave. Convex lenses make real images, concave make virtual images,the power of a lens (in diopters) is 1 over its focal length.
Implication of the gaussian formula is that when combining two lenses, add their power, adding a closeup filter allows a smaller object distance, changing object and image distances changes magnification.
lenses perform a 3D perspective transform of object space an object’s apparent size is inversely proportional to its distance linear lens motions move the in-focus plane non-linearly, focusing a lens changes the image size (slightly).
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which terms is eaqual to velocity change per second? A. acceleration B. speed C. velocity D. gravity
Answer: A. acceleration
Explanation: Acceleration is the term that is equal to velocity change per second. Acceleration refers to the rate at which an object's velocity changes over time. It measures how quickly an object's speed or direction changes. When an object speeds up, slows down, or changes direction, its velocity is changing, and this change per unit of time is known as acceleration.
To calculate acceleration, you divide the change in velocity by the time it takes for that change to occur. The unit of acceleration is meters per second squared (m/s²) in the metric system. For example, if an object's velocity changes from 10 m/s to 20 m/s in 2 seconds, the acceleration would be (20 m/s - 10 m/s) / 2 s = 5 m/s².
how much mass of u is required to produce about 8 j oof eenergy assum the energy produced in a single fission reaction is 200 mev
Using the assumption that each fission process produces 200 Mev of energy, a mass of U(235) is needed to produce approximately 8 x10¹¹ J of energy is 9.754 grams.
Explain the term single fission reaction?A bigger atom undergoes fission when a neutron smashes into it, causing it to excite then divide into two smaller atoms, also referred to as fission products. A chain reaction may be started by other neutrons that are also released. An enormous quantity of energy is produced when each atom divides.For the given single fission reaction-
Let the mass of U(235) required be m.Required energy = 8 x 10¹¹ J Produced energy = 200 Mev from one atomThus, convert energy required in Mev
8 x 10¹¹ J = 8 x 10¹¹ x 6.242 x 10¹² Mev
8 x 10¹¹ J = 49.9 x 10²³ Mev
Number of atoms required = Total energy / energy from 1 atom
Number of atoms required = 49.9 x 10²³ / 200
Number of atoms required = 0.24 x 10²³ atoms
Number of moles = 0.24 x 10²³ / NA = 0.041 mol
NA is Avogadro's number = 6.022 x 10²³
Number of moles = 0.041 mol
So, mass = 0.041 x 235
mass = 9.754 grams
Thus, using the assumption that each fission process produces 200 Mev of energy, a mass of U(235) is needed to produce approximately 8 x10¹¹ J of energy is 9.754 grams.
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The correct question is-
How much mass of U(235) is required to produce about 8 x 10¹¹ J of energy assuming the energy produced in a single fission reaction is 200 Mev.
how high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its initial speed is 108 km/h?
High (in m) a hill can a car coast up is 45.92m, if friction is negligible and its initial speed is 108 km/h
Initial velocity V = 108 Km/hr
V = 30m/s
Let mass of car m
Kinetic energy = 1/2 m[tex]v^{2}[/tex]
potential energy = mgh
by energy conservation,
h = [tex]v^{2}[/tex]/2g = 45.92m
Friction is the force preventing moving in the same direction between moving components of solid surfaces, fluid layers, and sliding materials. There are numerous types of friction:
Dry friction prevents the relative lateral motion of two in touch solid surfaces. Static friction (also known as "stiction") occurs between stationary surfaces and is further subdivided into kinetic friction (also known as "stiction") between moving surfaces. Except for atomic or molecule friction, the interaction of surface features known as asperities is the main cause of dry friction (see Figure 1).
Fluid friction can occur when layers of a viscous fluid move in close proximity to one another. Lubricated friction is the friction between two solid surfaces that is caused by a lubricating fluid.
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Correctly label the different filaments of a sarcomere. Mline Thick filament Thin filament Myofiber Sarcomere Z disc A band Contains myosin
The labeling of the different filaments of a sarcomere shown below -
What about sarcomere?Sarcomere is the smallest functional unit of striated muscle tissue. It is repeating unit between two z-disc. In striated muscle sarcomere, the M-line is the attachment site for the thick filaments. The M-line is in the center of the A band and thus, it is in the center of sarcomere.
Actin and myosin, the two primary protein filaments that make up each sarcomere and are the functional elements in charge of causing muscle contraction. The sliding filament theory is the most widely used model for describing muscle contraction.
The labeling are shown below:
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The complete question is as follows:
For a planet with a roughly circular orbit, how does the planet's velocity change when the orbital radius increases or
decreases?
Answer: increases
Explanation:
how can the period of oscillation and the parallel axis theorem be used to find the omment of inertia of an object about its center of mass
Using the parallel axis theorem, the interactive determines the inertia moment of a semicircle about three different axes.
What's the connection between time and moment of inertia?the length of an actual pendulum The inertia moment can be used to determine T=2ImgL T = 2 I m g L.The distance L between the mass center and the point of rotation.
What do the terms parallel axis theory and parallel axis theorem mean in relation to a lamina's moment of inertia?According to the parallel axis theorem, a body's inertial moment (I) about any axis equals the total of its moments of inertia (ICM) along all of its parallel axes.
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a 1.00 kg crate is placed at the top of a 0.0 incline i.00 m in length and is released. the coefficient of friction , between the crate and the incline is 0.15. what is the work done by the frictional force on the body as it slides down the incline g
The work done by the frictional force will be 0 Nm. Since the crate is released at the top of the incline and there is no initial velocity, it will not move and the work done by the frictional force will be zero.
The work done by the frictional force on the body as it slides down the incline can be calculated using the formula:
Work = Force * Distance
In this case, the force of friction is equal to the coefficient of friction, 0.15, multiplied by the weight of the crate, 1.00 kg * 9.8 m/s^2 = 9.8 N. The distance the crate travels is the length of the incline, 0.0 m.
Therefore, the work done by the frictional force on the body as it slides down the incline is:
Work = 0.15 * 9.8 N * 0.0 m = 0.0 Nm.
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how much energy is required to heat 40.7 g of water (h2o) from −10∘c to 70∘c?
The amount of energy that is required was found to be 4.184 J
define energy ?
In physics, energy (from Ancient Greek: v, enérgeia, "activity") is a quantitative quality that is transmitted to a body or a physical system and is observable in the execution of work as well as in the form of heat and light. The law of conservation of energy holds that energy can be transformed in form but cannot be generated or destroyed. The joule is the International System of Units (SI) unit of measurement for energy (J).
The kinetic energy of a moving object, the potential energy stored by an object (for example, due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, radiant energy carried by electromagnetic radiation, and internal energy contained within a thermodynamic system are all examples of common forms of energy. All living creatures continually absorb and expel energy.
So, to do that, we'll set up our equation so that q equals 40.7, and then the specific heat of water is 4.184 joules per gramme, times degrees celsius, and since I'm keeping this in grammes, this is the correct value of c, and then our final temperature minus our initial temperature, so 70 degrees celsius minus negative 10 degrees celsius, and that gives us 40.7 times 4.184 times 80, which gives us the value of q
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which of the following ideas is not a consequence of the quantum revolution? all tiny particles, like photons, have a dual wave-particle nature. particles of matter and antimatter completely annihilate each other, producing energy, when they meet. the force of gravity is a result of the curvature of spacetime. particles belong to two categories: fermions and bosons. quantum degeneracy pressure can prevent the core of a star from collapsing.
The idea that is not consequence of quantum revolution is particles of matter and antimatter completely annihilate each other, producing energy, when they meet.
Matter and antimatter meet in a process called annihilation. Both particles disappear after meeting. The mass of both particles is immediately converted into energy in this reaction. The resulting energy is usually a photon, which is a single particle of light. The annihilation process is also reversible. In the presence of a sufficiently large amount of energy, both matter and antimatter can be created. This is part of the big bang theory. A large enough amount of energy produced the matter that created the universe. All the antimatter produced during the Big Bang was destroyed in the presence of matter. However, this does not explain why the universe has so much matter and why everything we know about it is made of matter and not antimatter. It was theoretically possible that everything known could have been formed from antimatter instead, and scientists aren't sure why matter forms a galaxy instead of antimatter.To understand more about antimatter -
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if he is listening to the radio at the frequency of 660 khz , how many wavelengths fit in the distance from the station to his house?if he is listening to the radio at the frequency of 660 , how many wavelengths fit in the distance from the station to his house?111322233
If he were to listen to the radio at a frequency of 660 kHz, the distance between the station and his dwelling could be covered by 11 wavelengths. A good illustration of a wavelength is the length of light.
"The space between the light wave's two subsequent crests or troughs." The Visible Spectrum is Simply said, the visible spectrum is the portion of an electromagnetic wave that can be observed by human eyes. The frequency of an event is its repetitions per unit of time. For clarification, it is sometimes referred to as temporal frequency and is separate from angular frequency. One event occurs every second, or one hertz (Hz), when measuring frequency.
(660*103*5*103)/3*108 is the wavelength number.
11 wavelengths are present.
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The complete question is -
if he is listening to the radio at the frequency of 660 khz , how many wavelengths fit in the distance from the station to his house?
For a wave pulse on a string to travel twice as fast, the string tension must be
1-Decreased to one fourth its initial value.
2-Increased by a factor of 4.
3-Not possible. The pulse speed is always the same.
4-Increased by a factor of 2.
5-Decreased to one half its initial value.
choose the corecct answer.
Option B; A wave pulse on a string to travel twice as fast, the string tension must be 2-Increased by a factor of 4.
wave velocity is given by
v =2v.
T = 4T
As the pulling force transmitted axially by a string, rope, chain, or other similar object, or by each end of a rod, truss member, or other similar three-dimensional object, tension is defined; it can also be defined as the action-reaction pair of forces acting at each end of the aforementioned elements. Compression's opposite, tension, might exist.
When molecules or atoms are forced apart at the atomic level and accumulate potential energy while a restoring force is still present, the restoring force may produce what is also known as tension. Under such stress, each end of a string or rod might pull on the thing to which it is linked, releasing the tension and allowing the string or rod to return to its relaxed length.
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why is there error between a vector addition and displacement of the actual trip taken
No doubt your curriculum materials have an adequate discussion of error and how it is determined.
What is curriculum materials ?
a) The error between two values is the difference between an approximation and the true value. You determine it by subtracting the true value from the approximation.
In the case of a trip, you need to decide what is the "true value" and what is the "approximation." The wording here suggests that the "displacement of the actual trip taken" is to be considered the "true value." Then, you determine the error by subtracting that displacement from the "vector addition."_
b) In Euclidean geometry, a vector is a straight-line path. In the real world, we use the term vector to refer to the direction taken by an object, generally along a curved path at some relative distance from the Earth's surface. The direction reference may change along the path, so that following a given "vector" will usually result in a curved path (not a great circle) on the Earth's surface.
__
c) The curved path from a point A to a point B on the Earth's surface will always be longer than the straight-line path between the same two points. In the case of points on opposite sides of the world, the straight-line path is through the center of the Earth, whereas the "vector addition" will be some path along the surface of the Earth.
You need to decide the meaning of "actual trip taken," as any actual trip will generally involve all the changes in direction and ups and downs along the way. If you consider "the actual trip taken" to be the difference between starting and ending coordinates, then the "vector addition" will always be longer.
Complete question:Explain how you would determine how much error there is between a vector addition and the displacement of the actual trip taken. Why aren’t vectors true straight - line paths in the real world? Would you expect the vector addition to be larger or smaller than the actual trip taken? Why?
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what is the sl unit for work
The SI unit for work is joule (J).
What is joule ?Joule is the SI unit of work (J). The work accomplished by a force of one newton creating a displacement of one meter is known as a joule. Work is sometimes measured in newton-metres (N-m). But because this unit is also used for torque, things can become a little complicated. As a result, the SI authority does not promote the usage of this unit.Work is the process of transferring energy to an object's motion by the application of a force; it is frequently depicted as the result of force and displacement. If a force has a component in the direction of the displacement of the site of application, it is said to have positive work.
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why is it i can see the north star visible in the same location 24 hours a day?
It makes a fairly small circle over the course of a day since it is so close to the celestial equator. As a result, Polaris is a trustworthy indicator of the north since it always remains in nearly the same location in the sky.
Why do I always notice the same star in the same place?The stars move continuously and are not fixed. When the daily arcing motion of the stars across the sky caused by the rotation of the earth is taken into account, you are left with a pattern of stars that appears to remain constant.
Does it seem as though the North Star is stationary in the night sky?The star in the middle of the star field, Polaris, appears to be stationary. Polaris sits almost straight under the equator, hence this star is said to move the least. Due to Earth's rotation on its axis, the other stars seem to move in arcs.
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If light rays actually converge to the image point, the image is said to be a (virtual/real?) image and the image distance is positive. If the rays diverge, they should be extended backward with dashed lines to the common image point where they appear to meet. The image is said to be a (virtual/real?) image.
A virtual image is formed when light rays diverge from a common image point.
The image distance is negative because the light rays are extending away from the image point. This is because the light rays never actually meet at the image point and only appear to meet when extended backward.
A virtual image is an image that is formed when light rays do not actually converge to the image point but instead diverge from the image point. The image distance is negative in this case, and the rays should be extended backward with dashed lines to a common image point where they appear to meet.
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A steel cable has a cross sectional area 2.83x10^-3 m^2 and is kept under a tension of 1.00 x10^4 N. the density of steel is 7860 kg/ m^3 (note that this value is not the linear density of the cable). At what speed does a transverse wave move along the cable?
The velocity is 21.203 m/s
What is tension ?Tension is the force that is sent through a rope, string, or wire when two opposing forces pull on it. Along the whole length of the wire, the tension force pulls energy equally on the bodies at the ends. Every physical object that comes into contact with another one exerts force on it.
According to the given information
Cross sectional Area, A = 2.83 [tex]\times 10^{-3} \mathrm{~m}^2$[/tex]
Tension on the string, T = 1 [tex]\times 10^4[/tex] N
Density of steel, [tex]$\rho[/tex] = 7860 [tex]\mathrm{~kg} / \mathrm{m}^3$[/tex]
let [tex]$\psi(x)$[/tex] be the equation of the wave on the cable.
then Net force on the cable, [tex]$F_{n e t}[/tex] = T [tex]\left[\psi^{\prime}(x+d x)-\psi^{\prime}(x)\right][/tex]
= [tex]T d x\left(d^2 \psi(x) / d^2 x\right)$[/tex]
where we have assumed that [tex]$d x$[/tex] is infinitesimal
Now mass density of cable per unit length can be calculated as following
[tex]& \mu=A \rho \\[/tex]
[tex]& \mu=2.83 \times 10^{-3} \times 7860=22.243 \mathrm{~kg} / \mathrm{m}[/tex]
Using equation 1 ,
[tex]& F_{\text {net }}[/tex] = [tex]T d x\left(d^2 \psi(x) / d^2 x\right)[/tex] = m a =[tex]\mu d x\left(d^2 \psi(x) / d^2 t\right) \text { where } m[/tex][tex]=\mu d x \\& d^2 \psi(x) / d^2 t=(T / \mu)\left(d^2 \psi(x) / d^2 x\right)[/tex]
Comparing with the above equation,
[tex]$d^2 \psi(x) / d^2t[/tex] = [tex]\left(v^2\right)\left(d^2 \psi(x) / d^2 x\right)$[/tex] where V is the speed of the wave. then
v = [tex]\sqrt{T / \mu}$[/tex]
Using equation 2 and given value of tension,
v = [tex]\sqrt{1 \times 10^4 / v}=\sqrt{1 \times 10^4 / 22.243}[/tex]
= [tex]\sqrt{449.57}=21.203 \mathrm{~m} / \mathrm{s}[/tex]
The velocity is 21.203 m/s
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a point on the rim of a wheel has a linear speed of 47 cm/s. if the radius of the whelel is 20 cm, what is the angular speed of the wheel in radians per second
The angular speed of the wheel in radians per second is 1.17 radians/s.
Find the circumference of the wheel.
Angular speed is the rate at which an object rotates or revolves around an axis or center. It is usually measured in radians per second or revolutions per minute (rpm).
Circumference = 2πr
r = 20 cm
Circumference = 2π (20 cm) = 40π cm
Find the linear speed.
Linear speed = 47 cm/s
Find the angular speed.
Angular speed = Linear speed/Circumference
Angular speed = 47 cm/s/40π cm
Angular speed = (47/40π) radians/s
Angular speed = 1.17 radians/s
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a person with a black belt in karate has a fist that has a mass of 0.70 kg. starting from rest, this fist attains a velocity of 8.0 m/s in 0.15 s. what is the magnitude of the average net force applied to the fist to achieve this level of performance?
Magnitude of the average net force applied to the fist is 37.3 W.
a= DV/DT
= 8 / 0.15
= 53 m/s2
EF = (0.7)(53) = 37.3 W
Velocity is described as a vector measurement of the charge and path of motion. Placed truly, speed is the velocity at which something moves in one course. The velocity of an automobile travelling north on a chief parkway and the velocity of a rocket launching into the area can each be measured using speed.
Uniform velocity: A body is stated to be shifting with uniform speed if its average pace among any two factors along its course is equal in importance as well as path.
The SI unit of velocity is metre per/sec (m/s).
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what is the minimum power that the engine of a 560kg car has to deliver to accelerate the car from rest to 100km/he in 6.0second
Answer:
what is the minimum power that the engine of a 560kg has to deliver to accelerate the car from the rest to 100 kilometers/he in 6.0 seconds per feet
Explanation:
the car's weight kilometeresseconds the car is going acceleration of the speed it is going at ofa current of 27.0 ma is maintained in a single circular loop of 3.90 m circumference. a magnetic field of 0.710 t is directed parallel to the plane of the loop.
The magnetic moment of the loop is 8.37 * 10⁻³ Am²
The torque exerted on the loop by the magnetic field is 5.94 * 10⁻³ Nm.
What is the magnetic moment of the loop?The magnetic moment of the loop is calculated as follows:
M = IAwhere;
M is the magnetic momentA is the area of the loop in m²I is the current in amperesThe Area of the loop, A = πr²
where r is the radius
r = Circumference / 2π
r = 3.9 / 2π
Area = π * (3.9/2π)²
A = 0.31 m²
Moment of the loop = 27 * 10⁻³ * 0.31
Moment of the loop = 8.37 * 10⁻³ Am²
The torque exerted on the loop by the magnetic field is given as follows:
T = MB
where;
T is the torque
B is the magnetic field.
T = 8.37 * 10⁻³ * 0.71
T = 5.94 * 10⁻³ Nm
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Complete question:
A current of 27.0 mA is maintained in a single circular loop with a circumference of 3.90 m. A magnetic field of 0.710 T is directed parallel to the plane of the loop. (a) Calculate the magnetic moment of the loop. (b) What is the magnitude of the torque exerted on the loop by the magnetic field?
Why is impulse a vector?
Answer:
Impulse is defined as, It is defined as the product of net force and the length of time it was applied. As we know that momentum and force are both vectors, therefore impulse is also a vector.
explanation:
Since force is a vector quantity, impulse is also a vector quantity. Impulse applied to an object produces an equivalent vector change in its linear momentum, also in the resultant direction.
a mass is attached to a spring. it oscillates at a frequency of 1.27 hz when displaced a distance of 2.0 cm from equilibrium and released. what is the maximum velocity attained by the mass?
The maximum velocity attained by the mass is given by the equation v(max) is 0.80 m/s
Step 1: Calculate the spring constant
The frequency of a mass on a spring is given by the equation:
f = (1/2π)√(k/m)
where f is the frequency, k is the spring constant, and m is the mass.
Given:
f = 1.27 Hz
x = 2.0 cm = 0.02 m
Therefore:
k = (2πf)2m
k = (2π*1.27 Hz)2*0.02 m
k = 2.02 N/m
Step 2: Calculate the maximum velocity
The maximum velocity of an oscillating mass on a spring is given by the equation:
vmax = (2πfx)√(k/m)
where vmax is the maximum velocity, f is the frequency, x is the displacement, k is the spring constant, and m is the mass.
Given:
f = 1.27 Hz
x = 0.02 m
k = 2.02 N/m
Therefore:
vmax = (2π*1.27 Hz*0.02 m)√(2.02 N/m/0.02 m)
vmax = 0.80 m/s
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A 4.0 m long thin rod is pinned so that it spins about its center. The rod has a rotational inertia of 8.0 kg m2 about this center. The rod has two 3.0 kg masses attached at each end. What force F must be applied to one end to make the system rotate with an angular acceleration of 4.0 rad/s2 about its center?
The force F must be applied to one end to make the system rotate with an angular acceleration of 4.0 rad/s² about its center is 8 N.
What is the force that must be applied at one end of the rod?
The force that must be applied at one end of the rod to make the system rotate with an angular acceleration of 4.0 rad/s² about its center is calculated by applying the principle of conservation of angular momentum.
Mathematically, the formula for angular momentum is given as;
Fr = Iα
where;
F is the applied force r is the perpendicular distance I is the moment of inertia of the rodα is the angular acceleration of the rocF = ( Iα ) / ( r )
The force F must be applied to one end to make the system rotate with an angular acceleration of 4.0 rad/s² about its center is calculated as;
F = ( 8 kgm² x 4 rad/s² ) / ( 4 m )
F = 8 N
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Part A Complete the Part A Concept Map to describe the types of connective tissue found in the body Drag the appropriate labels to their respective targets. View Available Hint(s) Reset Help collagen and a few elastic adipose collagen reticular, elastic dense connective tissue connective tissue areolar that conveyis) fluid and strengthens) organs is/are matrix includes ground substance and the following fiber(s): that stor(s) fat and protect(s) organisare matrix includes ground substance and the following fiber(s): that attach() muss and bones is/are matrix includes ground substance and the following fibers): Sum Part B Complete the Part B Concept Map to indicate connective tissues' characteristic functions. Drag the appropriate labels to their respective targets. View Available Hints) Reset Help colagen only hyaline cartilage Inorganic salt connective tissue compact bone blood that transport(s) materials in a plasma matrix Ware the stores) minerals and anchoris) muscles are matrix includes nonbrous matrix includes ground substance and the following fiber(s) that covers and protects the end of long bones are mat includes ground susce and the following fibero): Submit
Three subgroups of connective tissue can also be distinguished: loose connective tissue, dense connective tissue, and specialized connective tissue. Extracellular matrix, collagenous, elastic, and reticular fibers make up loose connective tissue, which serves to hold organs in place.
Appropriate connective tissue is further classified into loose and dense connective tissues. Adipose, reticular, blood, bone, and cartilage are all types of specialized connective tissue. Any illness that affects the bodily tissues that link the body's structures together is referred to as a connective tissue disease. Collagen and elastin, two proteins, are the building blocks of connective tissues. The protein present in collagen
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the force vs. time graphs for two collisions are shown. which collision has the largest impulse?
Momentum is a product of the mass and velocity of particles in motion while impulse is the rate of change of the momentum of particles/objects when a force acts on the object.
The impulse of the collision in system A is twice the impulse of the collision in system B
Impulse is given as J = F.dt
In case of impulse 1,
it is F(1-0.5) = 4* 0.5 = 2 Ns
In case of impulse 2,
it is = 2(2.5 - 1.5) = 2Ns
We saw that, both the impulses are calculated to be 2Ns.
Therefore, both the impulses in the graph are same.
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how does the maximum static friction force that the surface exerts on the block depend on the surface area of the block?'
The maximum force of static friction is not dependent on the area of contact.
Static friction is a force that keeps an object at rest.The friction experienced when individuals try to move a stationary object on a surface, without actually triggering any relative motion between the body and the surface on which it is on.The static frictional force is self-regulating, i.e. static friction will at all times be equivalent and opposite to the force applied.The maximum force of static friction is not dependent on the area of contact.The maximum force of static friction is comparative to the normal force i.e., if the normal force increases, the maximum external force that the object can endure without moving, also increases.To know more about friction visit:
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if there is going to be a total lunar eclipse tonight, then you know that:
If there is going to be a total lunar eclipse tonight, then you know that the Moon's phase is full.
What is a lunar eclipse?The full moon phase is when lunar eclipses take place. When the Moon and Sun are exactly lined up, Earth's shadow falls on the Moon's surface, darkening it and occasionally turning it a brilliant red over the course of a few hours. Every lunar eclipse can be seen from half of the planet.
Total lunar eclipses occur when the moon is entirely submerged in the umbra of the earth's shadow. Hence, total lunar eclipse occurs when the Moon's phase is full.
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Which of the following field is used by the EM waves?
a) Solar field
b) Polarized field
c) Electric field
d) Micro field
Answer:
d
Explanation:
In an electromagnetic field, the electric and magnetic fields are present in the form of waves in horizontal and vertical patterns. In order to be present in that pattern, it is necessary to have maximum amplitude.
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a satellite s is in an elliptical orbit around a planet p, as shown above, with r1 and r2 being its closest and farthest distances, respectively, from the center of the planet. if the satellite has a speed v1 (a) at its closest distance, what is its speed at its farthest distance?
A satellite s is in an elliptical orbit around a planet p, as shown above, with r1 and r2 being its closest and farthest distances, respectively, from the center of the planet
(R1/R2)V1 is its speed at its farthest distance.
The rate of change in position of an object in any course.Speed is measured because the ratio of distance to the time wherein the distance became included. Speed is a scalar amount because it has handiest route and no significance.
Velocity can be notion of as the rate at which an object covers distance. A quick-moving object has a high speed and covers a notably big distance in a given amount of time, whilst a sluggish-shifting item covers a relatively small amount of distance in the same amount of time.
The primary unit or the S.I. unit of velocity is m/s or ms?¹.
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3. Miguel (m-72) and Fernando (89 kg) board the bumper cars at the local carnival. Miguel is moving at a velocity of 4 m/s when he
rear-ends Fernando who is at rest in his path. Fernando and his 125-kg car lunge forward at 2 m/s. Determine the post-collision
velocity of Miguel and his 125-kg car.
The collision, Miguel is moving in the opposite direction at 1.2 m/s.
Define collision.
A collision in physics is any situation in which two or more bodies quickly exert forces on one another. Despite the fact that the most common usage of the word "collision" refers to situations in which two or more objects clash violently, the scientific usage of the word makes no such assumptions.
Miguel's post-collision velocity can be determined using the law of conservation of momentum.
Momentum is a vector quantity and is equal to mass times velocity (p=mv). Before the collision, the momentum of the system (Miguel + Fernando's car) is equal to (m1=72kg)(v1=4m/s) + (m2=125kg)(v2=0m/s) = 782 kg*m/s.
After the collision, the momentum of the system is equal to (m1=72kg)(v1=?m/s) + (m2=125kg)(v2=2m/s) = 782 kg*m/s.
By solving for v1 we can find that Miguel's post-collision velocity is -1.2 m/s.
This means that after the collision, Miguel is moving in the opposite direction at 1.2 m/s.
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