More bilateral transfer occurs from the preferred limb to the non-preferred limb than the opposite occurs.
initials and names interchangeablyYour given name, which is also known as the first name, is the name your parents gave you when you were born. Typically, middle names are given as initials rather than full names, and this is true for the initial as well.
What does initial in a document mean?On the last page, there is a mark that reads "I." Pen and ink are used for physical documentation. The initial is unique to the person using it, not unlike a signature in that it is not a generic symbol. To show that you have read the page and accepted its terms, please add a small personalization.
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An 8.25kg point mass and a 15.0 kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 13.0cm from the 8.25kg mass along the line connecting the two fixed masses. Find the magnitude of the acceleration of the particle. Find the direction of the acceleration of the particle.
The direction of the acceleration of the particle is 8.825 kg mass.
Solution:
Acceleration = G m1 /r1^2 - G m2/r2^2
=6.67*10^-11 (0.048 - 0.01) towards 8.825 kg mass
= 2.5346 *10^-12 m/s^2 towards 8.825 kg mass
Particles have velocity in the negative direction and constant acceleration in the positive direction. When an object accelerates, its acceleration is in the same direction as its motion. When an object slows down, its acceleration is in the opposite direction of its motion.
Acceleration in uniform circular motion is toward the center along the radius. Instantaneous acceleration is the limit of average acceleration as Δt approaches zero. The velocity vector v always points in the direction of travel. The acceleration vector can point anywhere.
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if a planet had a semi-major axis length of 2.3 au as it orbits the sun, what would be its period in years?(
The period of the planet is obtained as 3.5 years .
What is the period?We know that we can be able to obtain the period of the planet by the use of the Kepler's law. By the use of the Kepler law, we can see that the square of the period of the planet is equal to the cube of the length of the semi major axis.
We can now write;
T^2 = r^3
Now we have the semi-major axis length as 2.3 au.
We would now have to substitute the values and then obtain the period of the planet from the equation as;
T = r^3/2
T = (2.3)^3/2
T = 3.5 years
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first make a substitution and then use integration by parts to evaluate the integral. (use c for the constant of integration.) x ln(5 x) dx
∫xln(5+x)dx
u = ln(5+x) , dv = xd
du = (1/5+x)dx , v = x2/2
∫xln(5+x)dx = ln(5+x).x2/2 -∫ x2/2 .1/5 dx
=x2ln(5+x)/2 - 1/2 ∫[(x-5) + 25/5+x] dx
=x2ln(5+x)/2 - 1/2 (x2/2 - 5x + 25ln[5+x]) + c
=1/2 (x2 - 25) ln(5+x) - 1/4.x2 +5/2.x+c
In calculus, and more generally in mathematical analysis, integration by parts or partial integration is a process that finds the integral of a product of functions in terms of the integral of the product of their derivative and antiderivative
Integration by parts is a special method of integration that is often useful when two functions are multiplied together, but is also helpful in other ways
∫ udvdx dx = uv − ∫ vdu dx dx. This is the formula known as integration by parts.
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A pulley on a frictionless axle has the shape of a uniform solid disk of mass 2.10 kg and radius 20.0 cm. A 1.90 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (Figure 1), and the system is released from rest. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable ii. Part A How far must the stone fall so that the pulley has 4.50 J of kinetic energy? Express your answer with the appropriate units. THA ΠΑ 2 ha Value Units Submit Request Answer Part B What percent of the total kinetic energy does the pulley have? Express your answer in percent.
The stone will fall 0.68 m so that the pulley has 4.50 J of kinetic energy.
The percent of the total kinetic energy of the pulley is 35.6 %.
What is the law of conservation of energy?According to this law, energy can only be converted from one form to another and it can neither be created nor destroyed. Total energy before and after the event remains conserved.
Given, the mass of the pulley, M = 2.10 Kg
The mass of stone, m = 1.90 Kg
The radius of the pulley, R = 20 cm
The kinetic energy of the pulley = 4.50 J
The kinetic energy of the pulley, I = (1/2) I ω²
[tex]{\displaystyle \frac{1}{2} I\omega^2 = 4.50\; J[/tex]
[tex]{\displaystyle \frac{1}{4} M v^2 = 4.50\; J[/tex]
[tex]{\displaystyle \frac{1}{4} \times 2.10 \times v^2 = 4.50\; J[/tex]
v² = 8.57 m²/s²
From the law of conservation of energy:
KE(pulley) + KE (stone) + PE (mass) = 0
[tex]{\displaystyle 4.50\; J + \frac{1}{2} m v^2-mgh =0[/tex]
[tex]{\displaystyle 4.50\; + \frac{1}{2} (1.9) \times 8.57=1.9 \times 9.8 \times h[/tex]
h = 0.68 m
The percent of total kinetic energy is given by:
[tex]\% KE_p = \frac{KE_p}{KE_{total}}\times 100[/tex]
[tex]\% KE_p = \frac{4.50}{4.50 + \frac{1}{2} \times 1.9\times 8.57}\times 100[/tex]
[tex]\% KE_p = 35.6 \%[/tex]
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you are performing an analysis on your model. you select five faces, 3 edges and 2 vertices and apply a force of 20lb. what is the total force applied to the model using solidworks simulation?
The model is subjected to a 100lb total force with the use of solidworks simulation.
How do you locate the reaction force in a simulation using solidworks?
Following analysis execution, right-click Results and choose List Result Force to display response forces. Select Reaction force from the Options menu in the PropertyManager. Additionally, you can choose Results Advisor > List Result Force (Simulation CommandManager). For rigid bodies, reaction forces are not considered.
What standards are most appropriate for evaluating ductile material failure in fusion 360 simulation?The default criterion is yield strength. The yield strength to Von Mises equivalent stress ratio is used to calculate the safety factor. For ductile materials like steel and aluminum in particular, the Von Mises stress is a reliable indicator of failure.
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what factor(s) determine the speed of wind-blown waves in deep ocean? what factor(s) determine the speed of tsunami wave?
The speed of a tsunami depends on the depth of the water it is traveling through. The deeper the water; the faster the tsunami.
What is windspeed?
In meteorology, wind speed, also known as wind flow speed, is a fundamental atmospheric quantity brought on by air shifting from a state of high to low pressure, frequently as a result of temperature changes. Nowadays, an anemometer is frequently used to measure wind speed.
What is tsunami?
A tsunami is a set of waves brought on by a disturbance. Similar to the ripples created when a stone is thrown into a pond, a tsunami can be produced by a disturbance that moves the water vertically (a sudden drop or a sudden rise).
Three factors influence the formation
Windspeed;
Length of time the wind has blown over a given area; and
Distance of open water that the wind has blown over (called fetch).
The speed of a tsunami depends on the depth of the water it is traveling through. The deeper the water; the faster the tsunami. As the water depth decreases, the tsunami slows. The tsunami's energy flux, which is dependent on both its wave speed and wave height, remains nearly constant.
Therefore, the speed of a tsunami depends on the depth of the water it is traveling through. The deeper the water; the faster the tsunami.
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a 5.0-m-diameter merry-go-round is turning with a 4.5 s period. part a what is the speed of a child on the rim? express your answer using two significant figures.
The speed of the merry-Go-round is 3.492 m/s
Given: Time period of Merry-go-round = 4.5 seconds
Diameter of the ring = 5.0m
this implies Radius=2.5m
Distance Travelled to complete 1 circle
= 2πr = 2*π*2.5 = 5π
Time Taken to complete 1 circle = 4.5 seconds
Speed = Distance Travelled/time taken
⇒ speed = 5 pi / 4.5
speed = [tex]\frac{5 * 22}{7 * 4.5}[/tex]
speed = 110 / 31.5
speed = 3.492 m/s
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a student drops a basketball into a pool from a height of 5 meters while a friend records the approximate splash height. they want to make a bigger splash in their next trial. how can they achieve this?(1 point) responses they can drop the same ball from a lower height. they can drop the same ball from a lower height. they can drop the same ball with less speed. they can drop the same ball with less speed. they can use a ball that has a larger circumference. they can use a ball that has a larger circumference. they can use a ball with more mass.
The students only need to use a ball with a larger circumference in order to make a bigger splash in their subsequent trial.
How is volume and mass ?We can state that an object's volume and mass are directly proportional. The mass of the object rises directly in proportion to the volume. The density of the substance is equal to the gradient of the graph.
Volume is the amount of space an object or substance occupies. Mass is a measurement of how much matter there is in an object or substance. Density is the ratio of an object's or substance's volume (the amount of space it occupies) to the amount of matter it contains.
Similarly in this question the basket ball being bigger will displace more area.
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What is the frequency of radio wave with a wavelength of 25 m?.
The frequency of a radio wave with a wavelength of 25 m is 0.12 × 10⁸ Hz.
An example of electromagnetic radiation is radio waves. The wavelength of a radio wave is substantially greater than that of visible light. Radio waves are widely used by people for communication. Both rectangular and circular antennas are used by this radio tower to send and receive radio frequency energy.
The relationship between frequency and wavelength is inversely proportional. The wavelength of the wave with the highest frequency is the shortest.
Wave velocity=Wavelength× Frequency
Given, λ = 25m
c = 3 × 10 ⁸ m/s
f =?
c = λ × f
3 × 10⁸ = f × 25
f = 3 × 10⁸ / 25
f = 0.12 × 10⁸ Hz.
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a driver will have more time and space to exercise options by searching ........ seconds ahead, identifying objects that could require a change in speed or direction 12-15 seconds ahead, and possible alternative path 8-12 seconds in advance.
A driver will have more time and space to exercise options by searching 20-30 seconds ahead.
what is excersise options?1. Shrug holds The main muscles that shoulder shrugs target are the trapezius muscles. ...
2. Tighten the glutes The easiest way to work out the buttocks while being in a sitting position is to simply squeeze the muscles. ...
3. Feet lifting Being stuck behind the wheel for long hours can hurt the feet. ...
4. Abdominal Hollowing ...
5. Seated Pelvic Tilt ..?
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while the prefrontal is necessary for the manipulation of order information in memory, the ... deals with its maintenancewhile the prefrontal is necessary for the manipulation of order information in memory, the posterior parietal cortex deals with its maintenance
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models.
what is parietal cortex ?
The parietal lobe is also an important component of spatial information, as it allows us to judge size, distance, and shape. The capacity to read written language and solve mathematical issues is provided by an unique triangular-shaped region known as the parietal association cortex.
The prefrontal cortex is activated during working memory, as evidenced by fMRI results in human studies and neurophysiological recordings in animal models. The neural correlate of working memory has traditionally been thought to be persistent activity during the delay period of working memory tasks, following the offset of stimuli that subjects are required to remember. Several findings in recent years have cast doubt on the role of this activity. According to some, activity in other brain areas, such as the primary visual and posterior parietal cortex, is a better predictor of information maintained in visual working memory and working memory performance;
dynamic patterns of activity may convey information without requiring any persistent activity at all; and prefrontal neurons may be ill-suited to represent non-spatial information. about the features and identity of remembered stimuli.
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The required subject matter expertise or background for an evaluator is documented in the exercise evaluation plan.
It is accurate to say that the exercise assessment plan includes information on the required subject matter competence or background for an evaluator.
What is exercise?The second law of physics applies to strengthening exercises. One kind of strength can be created by moving a heavy object with little acceleration. This may be seen in the powerlifting discipline, where competitors attempt to perform the deadlift, squat, and bench press with the greatest amount of weight. The third rule of motion, which states that "for every action there is an equal and opposite reaction," is connected to running in the article "The Truth about Running."
Why is exercise related to force?The homeostasis of the internal environment is impacted by exercise. Muscle contractions during activity produce heat and force. Therefore, engaging in physical activity uses mechanical energy. The body's reserves of energy will be depleted by the energy that is produced. There is an equal and opposite reaction to every action. This becomes the SAID principle—Specific Adaptations to Imposed Demands—when it is applied to exercise science. In other words, the body will adjust (respond) to the training strategy (action).
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suppose that we look at a photograph of many galaxies. assuming that all galaxies formed at about the same time, which galaxy in the picture is the youngest?
If all galaxies formed at about the same time, and when we look at a photograph of many galaxies, the galaxy that is the farthest away would be the youngest.
Small clouds of stars and dust whirling across space are considered to give origin to galaxies. Gravity propels these items careening into one another as additional clouds approach, knitting them into bigger spinning packs. From this expalation, we know that the most distant galaxy is the youngest galaxy.
The majority of galaxies are between 10 and 13.6 billion years old. Because our universe is around 13.8 billion years old, most galaxies formed when the cosmos was very young! Astronomers estimate that our Milky Way galaxy is 13.6 billion years old. GN-z11 is the youngest and the farthest galaxy discovered by Astronomers.
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particle of mass m starts from rest at position x = 0 and time t = 0. it moves along the positive x-axis under the influence of a single force xf bt=
The velocity v of the particle of mass m that starts from rest at position x = 0 and time t = 0 and moves along the positive x-axis under the influence of a single force Fx = bt, where b is a constant is b t² / 2 m
F = m a
a = dv / dt
F = Force
m = Mass
a = Acceleration
dv = Change of velocity
dt = Change of time
F = m dv / dt
Fx = bt
m dv / dt = bt
dv = ( b / m ) t dt
Integrating on both sides,
v = b t² / 2 m
Therefore, the velocity v of the particle is given by b t² / 2 m
The given question is incomplete. The complete question is:
A particle of mass m starts from rest at position x = 0 and time t = 0. It moves along the positive x-axis under the influence of a single force Fx = bt, where b is a constant. The velocity v of the particle is given by b t² / 2 m
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HURRY PLEASE
Two different bumper designs are shown here.
Recall that if the colliding objects have hard surfaces, the collision is elastic. Based on this description, which bumper design is more likely to result in an elastic collision? Predict how this bumper design will change the force that car 2 experiences during the collision.
The design that has the metal bar would increase the chances of an elastic collision and lead to an increase of the velocity of the car after collision.
What is elastic collision?We know that an elastic collision is one in which there is a conservation of the kinetic energy of the momentum. Recall that the colliding particles would have to constitute a closed system such that there is no loss in the momentum of the objects that are colliding.
We have two designs of the bumpers of the cars. We know that the balloon design would have more tendency to have this car stick to the other car and create an inelastic Collison.
However, with the metal bar design, there is less tendency that the cars would stick together after collision and we would have an elastic collision. The effect of this is that velocity of the car 2 may increase after the collision.
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a weight-lifter strains to lift a heavy weight and there is no movement of the person's arms holding on to the weight. this type of contraction is called a(n) contraction.
A weight-lifter strains to lift a heavy weight and there is no such movement of the person's arms holding on to the weight. This type of contraction is known as isometric.
In science and engineering, the weight of an object is the force appearing on the item due to gravity. some general textbooks define weight as a vector amount, the gravitational force performed at the object. Others outline weight as a scalar quantity, the importance of the gravitational pressure.
The word weight denotes an amount of the equal nature as a pressure: a load of a frame is fabricated from its mass and the acceleration due to gravity."
We regularly use the words 'mass' and 'weight' interchangeably, however, they suggest quite different things. Your mass is equal regardless of in which you go within the universe; your weight, alternatively, adjustments from place to region.
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in what direction relative to a magnetic field does a moving charged particle experience maximum deflecting force? minimum deflecting force?
Charged particles will experience a maximum force when traveling perpendicular to the magnetic field.
Which way does the magnetic field deflect charge?In accordance with this law, an electron or other charged particle traveling in a magnetic field will be deflected by the field at a right angle to both the field's direction and the direction of the particle. (As you apply that rule, keep in mind that the cathode ray electrons are moving in the opposite direction to that of regular current.)
How do you tell which way the deflection is going?A positive charge that is traversing a magnetic field perpendicularly at the top is deflected. The positive charge will be deflected in the direction that is predicted by the right-hand rule, the bottom. Positive charges will be deflected according to a related left-hand rule.
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What are some similarities between solar energy production and photosynthesis?.
Solar energy and plants Photosynthesis is a process that turns solar energy into chemical energy in plants and other living things. To produce energy, both rely on sunlight.
Describe energy in plain terms.Energy is the capacity to perform labor, according to scientists. Because of the ability to transform energy from one form to another and use it to accomplish tasks, modern civilisation is feasible.
Which energy kinds are there?Chemical, electrical, radiant, mechanical, thermal, nuclear, and other six main types of energy exist. Additional kinds, such as electrochemical, acoustic, electromagnetic, and others, may be discussed in other studies.
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a solid iron ball is thrown directly downward, with an initial speed of 8.10 m/s, from the top of a tower at a height of 29.7 m. how much time (in s) does it take before striking the ground?
a solid iron ball is thrown directly downward, with an initial speed of 8. The time (in s) it takes before striking the ground: a=g=9.8 m/s2 a = g = 9.8 m / s 2 is the acceleration due to gravity.
Initial velocity is the velocity at time interval t = zero and its miles are represented with the aid of u. it's miles the velocity at which the motion starts off evolved. they're four initial velocity formulations: (1) If time, acceleration, and final pace are supplied, the preliminary velocity is articulated as. u = v – at.
Initial velocity describes how fast an item travels when gravity first applies force on the object. alternatively, the final velocity is a vector quantity that measures the rate and course of a transferring frame after it has reached its maximum acceleration.
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In which concept does price and quantity supplied move in the same direction?.
The concept law of supply shows that price and quantity supplied move in the same direction.
The law of supply relates price changes for a product to the quantity supplied. In differentiation from the law of demand, the law of supply relationship is coordinated, not converse. The higher the cost, the higher the quantity provided. Lower costs mean decreased supply, all else held equal. Higher prices donate suppliers an incentive to supply more of the item or product, expecting their costs aren't expanding as much. Lower costs result in a fetched crush that checks supply. As a result, supply inclines are upwardly inclined from cleared out to right. As with demand, supply limitations may constrain the cost flexibility of supply for a product, whereas supply shocks may cause an unbalanced cost to alter for a basic commodity.
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What is the wavelength of a wave with a speed of 12 m/s and a frequency of 3 Hz?.
Answer:
[tex] \huge{ \boxed{4 \: m}}[/tex]
Explanation:
The wavelength of the wave given it's speed and frequency can be found by using the formula
[tex] \lambda = \frac{v}{f}\\ [/tex]
where v is the speed
f is the frequency
From the question
v = 12 m/s
f = 3 Hz
We have;
[tex] \lambda = \frac{12}{3} = 4 \\ [/tex]
We have the final answer as
4 mHow does visible light differ from ultraviolet and infrared on the electromagnetic spectrum.
The major difference between ultraviolet and visible light is that UV has a wavelength of 10-400 nm, while visible light has a wavelength of 400–700 nm and infrared has a wavelength of 700 nm–1 mm.
What are the differences between visible light, ultraviolet and infrared on electromagnetic spectrum?Compared to red light, infrared radiation has longer waves, a lower frequency, and less energy. Although ultraviolet light has shorter wavelengths that of blue or violet light, it moves more quickly and has a higher energy content per photon than visible light. In other words, their wavelengths are different.Infrared electromagnetic radiation (EMR) has wavelengths longer than that of visible light, whereas ultraviolet electromagnetic radiation (EMR) has a wavelength starting at 10 nanometers (nm). Visible light refers to the region of the electromagnetic spectrum which is visible to the human eye.Infrared waves have longer wavelengths than visible light, which allows them to pass through dense gas and dust clouds in space with less absorption and scattering. Thus, infrared light can reveal celestial objects that optical telescopes are unable to see in visible light.Know about electromagnetic spectrum at:
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for a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is related to the distance between the boundaries and the wave speed by group of answer choices
For a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is n ( v / 2 L ) where n = 1, 2, 3...
For a standing wave formed on a string with fixed boundaries at either end, the wavelength is λ / 2
Let the distance between the boundaries be L.
v = f λ
v = Wave speed
f = Frequency
λ = Wavelength
λ = v / f
L = n λ / 2
L = n v / 2 fn
fn = n ( v / 2 L ) where n = 1, 2, 3...
Therefore, for a standing wave formed on a string with fixed boundaries at either end, the frequency of the wave of harmonic order is related to the distance between the boundaries and the wave speed by n ( v / 2 L ) where n = 1, 2, 3...
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a scale from which a rock is suspended reads 5 n when the rock is out of the water and 3 n when the rock is completely submerged in the water. the density of the rock is
The density of the object is 1.67 g/cm^3.
What is the density of the object?We know that we can be able to obtain the relative density of an object as the ratio of the weight of an object in air to the weight of the object in water. Another name for the relative density of the object is also the specific gravity of the object.The density of an object is the mass of the object compared to its volume. The equation for density is: Density = mass/volume or D = m/v. Each substance has its own characteristic density because of the size, mass, and arrangement of its atoms or molecules.Density is the mass of an object divided by its volume. Density often has units of grams per cubic centimeter (g/cm3). Remember, grams is a mass and cubic centimeters is a volume.The density of an object or substance is its mass divided by its volume: Density = Mass ÷ Volume. The units of density depend on the units used for mass and volume, but are usually: g/cm³ (if mass is measured in g and volume in cm³). The more dense a substance is, the heavier it feels for its size.Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth's density is 5.51 grams per cubic centimetre.Thus;
Relative density = Weight in air/weigh in water
= 5 N/3N
= 1.67
Given that the density of water is 1 g/cm^3
Density = Relative density * density of water
= 1.67 * 1 g/cm^3
= 1.67 g/cm^3
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While standing on frictionless ice, you (mass 65.0 kg ) toss a 4.50g rock with initial speed 12.0m/s . The rock is 15.2 m from you when it lands. Take the axis on the ice surface in the horizontal direction of the motion of the rock. Ignore the initial height of the toss. At what angle did you toss it? How fast are you moving? (cm/s)
While standing on frictionless ice, you (mass 65.0 kg ) toss a 4.50g rock with initial speed 12.0m/s.At 37.8 degrees angle did you toss it.
Back to including the slide. The range equation is
Eq1: 15.2 - Vs*t = 12^2/g*sin(2A) (t is the time of flight in all this) Conservation of momentum gives
Eq2: 65Vs = 4.5*v*cos(A) or Vs = 0.8308*cos(A)
Vertical velocity at the turnover point is 0 = Vi + at = 12*sin(A) - gt/2 or Vertical velocity Eq3: t = 2.45*sin(A)
initial speed=12.0m/s
Sub eq3 into eq1 to get
15.2 - 2.45*Vs*sin(A) = 14.7*sin(2A)
Sub eq2 in for Vs Vertical velocity:
15.2 - 2.45*0.8308*cos(A)*sin(A) = 14.7*sin(2A)
15.2 - 2*sin(A)*cos(A) = 14.7*sin(2A) a bit of a roundoff here to get the 2
15.2 - sin(2A) = 14.7*sin(2A)
15.2 = 15.7*sin(2A)
sin(2A) = 0.97
A = 37.8 degrees
To get the speed of the person, you would just use eqn2.
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the period of the object attached to a spring is tt . how much time does the object need to move from the equilibrium position to half the amplitude?
The time period for this given SHM, when it moves from equilibrium position to half the amplitude will be T/12.
When the objects starts from the mean position, the equation for displacement is given by x = Asin(wt).
where, x= displacement from the mean position, A= amplitude, w= angular frequency, t= time, T= time period of the object.
Substituting the values in x = Asin(wt).
We get: A/2 = A sin (wt)
1/2 = sin(wt)
wt = π/6
(2π/T)t = π/6
[since, sin(π/6)=1/2 and w=2π/t ]
Therefore, (time) t = T/12
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g a 80 kg woman on roller skates pushes a 30 kg girl, also on roller skates, with a force of 100 n. the magnitude of the force exerted by the girl on the woman is group of answer choices 200 n 100 n 50 n 40 n 38 n zero
The magnitude of the force exerted by the girl on the woman is 100 N .
How is it calculated?Given,
m₁ = 80 Kg
m₂ = 30 Kg
F1 = 100 N
F₂ = ?
By applying Newton's third law of motion, the force exerted by the girl is equal in magnitude to the force exerted by the boy but in opposite direction.
F₁ = F₂
F₁ = m₁ × a₁
F₂ = m₂ × a₂
∴ 100 = 80 × a₁
∴ a₁ = 100 / 80
∴ a₁ = 1.25 m/s
we know,
m₁ × a₁ = m₂ × a₂
∴ 80 × 1.25 = 30 × a₂
∴ 100 = 30 × a₂
∴ a₂ = 100 / 30
∴ a₂ = 3.33 m/s
Therefore,
F₂ = m₂ × a₂
∴ F₂ = 30 × 3.33
∴ F₂ = 100 N
Hence, the magnitude of the force exerted by the girl on the woman is 100 N .
What is magnitude of force?A force magnitude is a number that expresses the A force magnitude is a number that expresses the strength of a force.Example: Suppose the force is = 10 N towards the east. "East" represents the direction, and "10" represents the strength of the force. A quantity is therefore basically a "value" or "amount" of a physical quantity it is always a scalar quantity.Can learn more about the magnitude of force from https://brainly.com/question/20719505
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What is the frequency of a wave with a velocity of 500 m/s and a wavelength of 25 m?.
Answer:
[tex] \Huge{\bold{20 Hz}} [/tex]
Explanation:
The frequency of the wave given it's velocity and wavelength can be found by using the formula
[tex] frequency = \frac{v}{ \lambda} [/tex]
where [tex] \lambda [/tex] is the wavelength
From the question
v = 500 m/s
[tex] \lambda [/tex] = 25 m
We have
[tex]f = \frac{500}{25} = 20 \\ [/tex]
We have the final answer as
20 HzHope this helps you
in a laser generator, what is found at both ends that allows for the amplification and stimulated emission of laser light?
In a laser generator, micro reflectors is found at both ends that allows for the amplification and stimulated emission of laser light.
What is laser generator?
A laser beam is produced by a laser generator that uses electrical discharges to excite a gas mixture. This kind of generator operates on the same fundamental tenet as a laser beam, which is to "pump" a medium with energy before the medium returns to its initial state and emits photons.
What is amplification?
amplification (countable and uncountable, plural amplifications) (countable and uncountable, plural amplifications) the process or outcome of enlarging, extending, or adding the act of independently increasing a quantity, particularly voltage, power, or current, or the result of doing so (physics). Gain. (Electronics)
Therefore, in a laser generator, micro reflectors is found at both ends that allows for the amplification and stimulated emission of laser light.
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what is the length of a single pendulum oscillating in earth's surface having the same period as t accept above for each of four masses
A straightforward pendulum with a period of one second will be 0.25 meters, or 25 cm, long.
What are a pendulum's period and frequency?Please feel free to explore how the pendulum would function on different planets, but we'll use the Earthly value of 9.80665 m/s2 for our calculations. Use the formula above to get the oscillation period: T = 2π√(L/g) = 2π * √(2/9.80665) = 2.837 s . As the period's reciprocal, determine the frequency: f = 1/T = 0.352 Hz .
What are the two things that influence a pendulum's period?The length of the string and gravitational acceleration are two elements that can alter a pendulum's period.
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