Two key problems for controlled fusion on Earth are high temperature and containment.
What is nuclear fusion?Nuclear fusion can be defined as a type of nuclear reaction that involves joining or combining two (2) smaller (light) nuclei of atoms, so as to form a single heavier nucleus accompanied with the release of energy.
What is controlled fusion?In Science, controlled fusion can be defined as a thermonuclear process that typically involves the fusion of smaller (light) atomic nuclei into a single heavier nucleus, usually at high temperatures and under controlled conditions.
In this context, we can reasonably infer and logically deduce that high temperatures (heating) and containment are the two fundamental problems that are associated with controlled fusion on planet Earth.
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Complete Question:
Two key problems for controlled fusion on Earth are _______ and containment.
behavior therapists look to current environmental events that maintain problem behaviors and help clients produce behavior change by changing environmental contingencies (T/F).
(T)rue
Through the process of functional assessment, behavior therapists look to the current environmental events that maintain problem behaviors and help clients produce behavior change by changing environmental events.
Functional assessment is used to determine an individual's level of functioning and his or her ability to perform specified tasks on a safe and predefined environment over a defined period. An FBA is the process of determining the reasons (or “functions”) of behavior before producing an intervention, which is based upon hypothesized causes (functions) of behavior and understanding why a behavior occurs facilitates a more targeted and effective intervention.There are components of functional assessment, which includes- Vision and hearing, mobility, continence, nutrition, mental status, affect, home environment, social support, activities of day to day life such as transferring, ambulating, bathing, etc.Hence, through the process of functional assessment, behavior therapists look to the current environmental events that maintain problem behaviors and help clients produce behavior change by changing environmental events.
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Through which process, behavior therapists look to the current environmental events that maintain problem behaviors and help clients produce behavior change by changing environmental events?
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which of the following statements best justifies the inclusion of test tube v as a control in the experiment? responses it will provide a measurement of amylase activity at an acidic ph.
The following statement which best justifies the inclusion of test tube v as a control in the experiment is that it will show the color change that occurs in the absence of enzyme activity and is denoted as option C.
What is an Enzyme?This is referred to as a biological catalyst which is involved in the speeding up of the rate of a reaction by lowering the activation energy used to initiate the reaction.
Enzymes are known as proteinous in nature and are denatured by heat and other substances is included in the test tube v as a control in the experiment is that it will show the color change that occurs in the absence of enzyme activity.
This therefore helps to differentiate the enzymatic processes which takes place in a substance or body therefore making option C the correct choice.
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The options are:
It will provide a measurement of amylase activity at an acidic pH.it will provide a measurement of amylase activity at a basic pH. It will show the color change that occurs in the absence of enzyme activity.it will show the color change that occurs in the absence of the amylase protein.It will show the color change that occurs in the absence of enzyme activity.
a battery was charged. when the charging began, it was 232323 percent full. after 303030 minutes of charging, the battery was 898989 percent full.
According to the provided statement, a power supply was charged after 2.2 minutes of charging.
What would you say is charge?Charge, also referred to as electric charge, electrostatic attraction, or electrostatic interactions and denoted by the symbol q, is a property of a unit of matter that indicates how many more or fewer particles than protons it contains.
Charge, in brief: what is it?The physical characteristic of matter that leads it to feel a force when exposed to an electromagnetic field is called electric charge. The two types of electric charges that protons and electrons most frequently carry are positive and negative charges. Charge movement is what produces energy.
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The free-fall acceleration at the surface of planet 1 is 26m/s^2 . The radius and the mass of planet 2 are twice those of planet 1. What is on planet 2?
The acceleration on planet 2 is 13 m/s².
Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector portions. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.
Calculation:-
The acceleration of gravity near the surface of a planet is:
g = MG / R²
For planet 1, g = 26 m/s^2.
The gravity on planet 2 in terms of the mass and radius of planet 1 is:
g = (2M)G / (2R^2)
g = 1/2 MG / R²
Since MG/R² = 26 m/s², then:
g = 13 m/s²
Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.
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a cube of side length 10.0 cm and made of unknown material floats at the surface between water and oil. the oil has a density of 810 kg/m3. If the cube floats so that it is 71 % in the water and 29 % in the oil, what is the mass of the cube?What is the buoyant force of the cube?
The buoyant force of the cube is 23 / 12 gcm^-3. Upthrust, often known as buoyancy, is an upward force applied by a fluid against the weight of an object that is partially or completely submerged.
What is buoyant force ?Upthrust, often known as buoyancy, is an upward force applied by a fluid against the weight of an object that is partially or completely submerged. The weight of the fluid on top causes pressure in a fluid column to rise with depth.
Any object in water experiences a buoyant force that works against gravity, causing it to shed some of its weight. The buoyant force acting on the object will be equal to gravity and it will float if it displaces an amount of water equal to its own weight.
Let the side of metal be L.
So the of base is A = L²
Now the weight of 144 g weight will be balanced by the buoyancy force due to 1/2cm length of metal cube (p = 2gcm^-3)
So buoyancy force is F = A x L1pg=L^2 x 1/2 x 2x10
L = 12cm
This force is equal to weight of 144gm.
so, L² x 1/2 x 2 x 10 = 144 x 10
L = 12 cm
when no weight was placed the 1/2 cm was above the liquid.
so total length under weight was L - 1/2 = 23/ 2 cm
weight of block = buoyancy force
pmetal x L³ x g = p x L² x 23/2 x g
pmetal = 23 / 12 gcm^-3
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a piano hangs from a steel cable. as it s lowered from a third- floor apartment to the groundt,he work done on the piano by the cable is (a) positive; (b)negative; (c) zero; or (d) it cannot be determined without more information
The correct option is option B.
For this exercise we must use the work definition
W = F. s
Where the bold characters indicate vectors and the point is the scalar producer
W = F s cos θ
Where θ is the angles between force and displacement.
Here, in this case, the cable creates an upward tension and with the piano going down the angle between them is 180º so the work of the cable on the piano is negative.
The evade has a downward force, its weight so the force goes down and the displacement goes down, as both are in the same direction the work is positive.
Therefore, the cable does negative work on the piano and piano does positive work on the cable and we can say work done on the piano by the cable is negative.
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solar photovoltaic energy is highly versatile and can be used in a variety of dispersed settings. which of the following would not be a good location to harness large amounts of this form of energy?
The location that is not good for photovoltaic cells is the farm.
What is a photovoltaic cell?In the recent years, there have been a lot of clamor for the return to clean energy and the first port of call have been the consideration of the use of renewable energy sources as a power source for the future. This has engendered the return to the solar energy.
In the harvesting of the solar energy, solar cells are displayed in such a place that they can be able to absorb the energy from the sun and this is converted to electrical energy.
Unfortunately, if we are to harness the use of the photovoltaic cells, we need a large expanse of land that can be used to mount the cells and these lands would cease to be available for use in agriculture.
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Missing parts;
Solar photovoltaic energy is highly versatile and can be used in a variety of dispersed settings. Which of the following would NOT be a good location to harness large amounts of this form of energy?Roof tops of commercial buildings Base-load Power Facilities Airports Agricultural Fields Residential Neighborhoods
What is the collision formula?.
The collision formula is m₁u₁+m₂u₂=m₁v₁+m₂v₂ and [tex]V=\frac{m_1v_1+m_2v_2}{m_1+m_2}[/tex].
A collision is an event in which two or more objects exert forces on one another quickly. Elastic collision and inelastic collision are two types of collision.
The term "elastic collision" refers to a collision between two bodies where the total kinetic energy of both bodies after the collision is equal to their total kinetic energy before the collision. The formula to calculate this is m₁u₁+m₂u₂=m₁v₁+m₂v₂.
Here, m₁ and m₂ are the mass of object 1 and object 2. u₁ and u₂ initial velocities of object 1 and object 2. v₁ and v₂ are the final velocities of object 1 and object 2.
An inelastic collision is one in which some energy is lost when two objects collide. The formula to calculate this is [tex]V=\frac{m_1v_1+m_2v_2}{m_1+m_2}[/tex].
Here, V is the final velocity, m₁ and m₂ are the mass of object 1 and object 2. v₁ and v₂ are the initial velocities of object 1 and object 2.
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A race car starts from rest on a circular track. The car increases its speed at a constant rate at as it goes once around the track in the counterclockwise direction. Find the angle that the total acceleration of the car makes with the radius of the circle, at the moment when the car completes first half of the circle. A) 9.04o B) 4.55o C) 3.14o D) ) 0.08o E) none of the above
Option A is correct.
9.04 degree is the angle that the total acceleration of the car makes with the radius of the circle.
What is speed?Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement. Put another way, speed is a scalar value, while velocity is a vector.
What is acceleration?Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. Motion on a circle is accelerated even if the speed is constant, because the direction is continually changing.
How to calculate angle when the car completes first half of the circle?When car completes half of the circle it means distance covered would be half the perimeter of the circle.
s = ut + 1/2at²
2πr/2 = 0 + 1/2at²
a(tangential) = 2πr/t²............(1)
where s = distance
u = initial velocity
a = acceleration
t = time
We know that centripetal force is :
a(centripetal) = v²/r ............ (2)
Now we using first equation of kinematics,
v = u +at
Put the values from equation(1):
We get,
v = 0 + 2πr/t² × t
where v = final velocity
u = initial velocity
a = acceleration
t = time
Now the put the obtained value in equation(2)
a = 4π²r/t²
To get the angle we can use this expression :
θ = tan⁻¹ [ a(T)/a(C) ]
= tan⁻¹ [1/2π]
= 9.04 degree.
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A cedar raft is 2. 4 m wide, 0. 30 m high, and 3. 0 m long. What is the maximum load (in newtons) the raft can support? Assume the density of cedar to be 598 kg/m^3 and ignore the volume of the load
The maximum load (in newtons) the raft can support is 7830kg.
What is buoyancy force?
A fully or partially submerged object is subject to an upward force known as the buoyant force. Upthrust is another name for this thrust upward. A body that is partially or completely submerged in a fluid gives the impression of losing weight because of the buoyant force, or that it is lighter.
What is density?
Density Symbol: D or Formula for Density: D = m/V, where D stands for density, m for mass, and V for volume.
Buoyancy is the upward force that an object feels from the water and when compared to the weight of the object.
Buoyancy force can be calculated with the equation
Fb=Vs×D×g
where F b is the buoyancy force, V s is the submerged volume, D is the density of the fluid the object is submerged in, and g is the force of gravity.
It can also be given as the sum of the weight of the raft and the weight of the load. That is,
W raft +W load = Fb=Vs×D×g.
The weight of the raft
W raft=V raft Draft g.
At maximum load, Volume of water displaced is equal to volume of the raft.
max(W load )=(D water −D raft )Vraft g.
=(1020kg/m 3 −150kg/m 3 )(3m×3m×1m)g
=7830kg.
Hence, the maximum load the raft can carry sea water so that the plank just floats in water is 7830kg.
Therefore, the maximum load (in newtons) the raft can support is 7830kg.
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amples of coarse aggregate from a stockpile are brought to the laboratory for the determination of specific gravities. the following weights are found:
The aggregate bulk dry specific gravity, the aggregate apparent specific gravity, the moisture content of stockpile aggregate and absorption are respectively,
A. 2.7
B. 2.72
C. 1.6%
D. 0.21%
A) The formula for the aggregate bulk dry specific gravity is:
Aggregate bulk dry specific gravity = Mass of oven dried aggregate /( Mass of saturated surface dry aggregates - Submerged mass of aggregate)
Placing the values from the data we have,
Aggregate bulk dry specific gravity = 5216/ (5227 - 3295) = 2.7
B) Formula for aggregate apparent specific gravity is
Mass of oven dried aggregate/ ( Mass of oven dried aggregate - Submerged mass of aggregate) = 5216/ (5216 - 3295) = 2.7
C) The moisture content of the stockpile aggregate is
m = (weight of moist aggregate - mass of oven dried aggregate) / (mass of oven dried aggregate* 100%)
m = (5298 - 5216)/ (5216* 100%) = 1.6 %
D) Absorption is calculated as A = (5227 - 5216) / (5216) * 100% = 0.21 %
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Claire sits on a bar stool, with her feet off of the floor. The seat of the bar stool is free to rotate. Claire is holding a wheel (moment of inertia = 1.75 kg m^2) that is spinning counterclockwise at an angular speed of 16.20 rad/s, as shown below. Claire and the bar stool are stationary. (Claire + the bar stool have a moment of inertia of 44.20 kg m^2.) Claire, being adventurous, flips the axle of the wheel by 180 degree (applying an internal torque) and holds the wheel in place. What happens to Claire and the wheel? (a) What is ''the system" for this problem? O Just wheel. O Just Claire.
O The wheel and Claire. O The wheel. Claire, and the bar stool. (b) What is the total angular momentum of the system? Magnitude kg m^2/s Direction (One Submission) O up (counterclockwise) O down (clockwise) (c) What is the angular momentum of the wheel after Claire flips it over? Magnitude kg m^2/s Direction (One Submission) O down (clockwise) O up (counterclockwise) (d) What is (the bar stool + Claire)'s angular momentum after Claire flips the wheel over? Magnitude? kg m^2/s Direction? (One Submission)
O down (clockwise) O up (counterclockwise) (e) What is Claire s angular velocity after she flips the wheel over? Magnitude? rad/s Direction? (One Submission) O down (clockwise) O up (counterclockwise)
That the combination of an object's mass, speed, and distance from the center of rotation determines its angular momentum.
What is the system's overall angular momentum?L = I, where L is angular momentum, I is rotational inertia, and (the Greek letter omega) is angular velocity, is the formula for angular momentum.To put it simply, you can say that the angular momentum of an object is equal to the sum of its mass, speed, and separation from the point of rotation.Symbol = The angular momentum is represented by the letter L because it is a vector quantity. Units = The unit of measurement is the kilogram-meter-second.Dimensional equation: M L2 T 1 Angular momentum (L) is calculated using the formula mvr, where m stands for mass, v for speed, and r for radius.The system's total angular momentum is equal to I=1.87 x 17.80=33.286 in the up (counterclockwise) direction.The vector sum of the individual angular momenta near the origin represents the system of particles' total angular momentum.Radius times linear momentum is what determines an object's angular momentum. [L = I x, I = inertia, and = angular velocity or L = r x p, where p is linear momentum]To learn more about Angular momentum refer to:
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How will you explain the behavior of the food dye when the water is agitated?.
The water will eventually become colored as a result of the molecules' random movement. The diffusion process will be accelerated by agitation.
What brings about agitated behavior?Extreme motor activity or interior restlessness, sometimes known as agitation, can be a sign of an illness or be a normal physiological response to a circumstance. The most common reasons for agitation are being in a new environment, using or withdrawing from drugs, having alcohol in your system, and general medical issues.
What sets off an individual's agitation?It can start as a result of events, words, deeds, or in some situations, for unknown reasons. Although feeling irritated occasionally is common (for example, in reaction to stress from work or school), it can occasionally be an indication of an underlying medical condition.
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A 3.1 x 1023 kg object and a 7.3 x 105 kg object are orbiting each other in deep space. If these two objects are 4.3 x 1010 meters apart, what is the magnitude of their gravitational force?
The gravitational force on the object of masses 3.1×10²³ kg and 7.3×10⁵ kg respectively is 8.16×10⁻³ N.
What is gravitational force?Gravitational force is the most prevalent force in the universe, pulling together on any two objects with mass in the universe.
To calculate the magnitude of the gravitational force, we use the formula below.
Formula:
F = GmM/r²............... Equation 1Where:
F = Gravitational forcem = Mass of the first objectM = Mass of the second objectr = Distance between the objectsG = Universal constant.From the question,
Given:
m = 3.1×10²³ kgM = 7.3×10⁵ kgG = 6.67×10⁻¹¹ Nm²/kg²r = 4.3×10¹⁰ mSubstitute these values into equation 1
F = (3.1×10²³× 7.3×10⁵×6.67×10⁻¹¹)/(4.3×10¹⁰ )²F = 8.16×10⁻³ NHence, the gravitational force is 8.16×10⁻³ N.
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how fast, in rpm , would a 5.8 kg , 20- cm -diameter bowling ball have to spin to have an angular momentum of 0.26 kgm2/s ?
Angular speed is the speed of the object which determines how fast any object can rotate. It has both direction and magnitude and so is the vector quantity.
Given that:
Angular momentum (L) = 0.26
Diameter = 20cm = 0.2 cm
Radius, r = (d/2) = 0.1m
Mass = 5.8 kg
Moment of inertia (I) = 2mr² / 5
I = (2 * 5.8 * 0.1^2) / 5
= 0.116
= 0.116 / 5
= 0.023 kgm²
Angular speed (w) ;
w = L / I
w = 0.26 / 0.023
= 11.30
= 11.3 rad/s
w = (11.3 * 60/2π)
w = 1064.9
Angular speed = 1064.9 rpm
= 1065 rpm
Therefore the angular speed is 1065 rpm.
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an object has a weight of 8.50 n when in air. however, it apparantley weighs 4.40 n when completely submerged in water
the density of the object is 0.0041 g/vol
How does density change in water and air?Water has a density of about 1 gram per milliliter, however this might vary depending on temperature or the things that are dissolved in it. Because ice is less thick than liquid water, ice cubes float in glasses of water.
Compared to a unit volume of liquid water, air has fewer molecules per volume, making it lighter.
Given two weights = 8.5 N and 4.4 N
the formula v₀ = wₐ - wₓ/ pₓg
here wₐ = weight in air
and wₓ = weight in water
Thus on substituting the value of the above mentioned dimensions we get
v₀ = 8.5 - 4.4 / 1000
v₀ = 0.0041
Thus the density of the object is 0.0041 g/vol
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17) what is the net power needed to change the speed of a 1600-kg sport utility vehicle from 15.0 m/s to 40.0 m/s in 4.00 seconds?
The net power needed to change the speed of a 1600-kg sport utility vehicle from 15.0 m/s to 40.0 m/s in 4.00 seconds is 275,000Watts.
Define power?
The ratio of work completed to the amount of time required is known as power. It can be expressed as- P = W/tThe following informations are provided in the question,
Mass of the sport vehicle, m = 1600 kg
Initial velocity, u = 15 m/s
Final velocity, v = 40 m/s
Time required, t = 4 seconds
Using the formula F = m(v-u)/t, we can find the force required to change the velocity of the vehicle.
Putting the values in the above equation we get,
F = 1600(40-15)/4
F = 1600(25)/4
F = 400 * 25
F = 10,000N
Therefore the required net power is calculated using the expression-
P = 1/2*F(u+v)
Putting the values of F, u and v we get net power P as,
P = 1/2(10000)*(15+40)
P = 5000(55)
P = 275,000Watts
Hence, the required power is 275,000Watts
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which of the following happens when the frequency of electromagnetic radiation decreases? explain your reasoning.
As the electrical field corresponds to amplitude; so when the frequency decreases, waves broaden and the extent of the change decreases.
What happens when frequency of electromagnetic radiation decreases?When the frequency decreases, then the wavelength gets longer. There are two types of waves: mechanical and electromagnetic. Mechanical waves like sound, ocean, seismic, or earthquake travel through a solid, liquid, or gas medium whereas electromagnetic waves travel through a medium or a vacuum.
The energy equation is given as, E = hν, where E represents energy, h is Planck's constant whose value is 6.626 x 10 -34 J.s and v represents frequency. The energy equation is direct relationship between frequency and energy. As frequency increases, energy. also increases.
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if the 36.0- n force continues, the box accelerates at 0.38 m/s2 . what is the coefficient of kinetic friction?
The coefficient of kinetic friction is 0.54
Kinetic friction is characterized as a force that acts between moving surfaces. A body moving on the surface encounters a force in the opposite direction of its movement. The magnitude of the force will depend on the coefficient of kinetic friction between the two materials. Here we are given the information of a force of 36.0 N required to a 6.0-kg box moving across a horizontal concrete floor and the acceleration is at 0.60 m/s2.The formula we can refer to in order to the calculate the kinetic friction is : F- u[tex]_{k}[/tex](mg)=ma
=>36-u[tex]_{k}[/tex](mg)= 6* 0.60
=> u[tex]_{k}[/tex](mg) = 36 -(3.6)
=> u[tex]_{k}[/tex]= 32.4/mg
=>u[tex]_{k}[/tex]= 32.4/6*10 = 0.54
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A force of 36.0 n is required to start a 6.0-kg box moving across a horizontal concrete floor. if the 36.0-n force continues, the box accelerates at 0.60 m/s2 . What is the coefficient of kinetic friction?
a car drives around a 75 m radius curve at a constant speed of 18 m/s. a car freshener hangs by a string from the rearview mirror. determine the angle between the string and the vertical as the car rounds the curve.
The angle between the string and the car is 23.79° When the car drives around a 75 m radius curve with a constant speed of 18m.s.
Radius of the curve = r = 75m
Speed of the car = v = 18 m/s
To calculate centripetal acceleration,
Centripetal acceleration is the acceleration experienced by the car when in constant motion around the curve.
Centripetal Acceleration = Cₐ =
= v² / r
= 18² / 75
= 4.35 m/s²
Gravitational acceleration = g = 9.8 m/s²
To find the angle between the string and the car= θ =
= θ = tan (Cₐ /g)
= θ = tan (4.35 / 9.8)
= θ =23.79°
Thus, the string attached to the car moving at the constant force is at an angle of 23.79 degrees.
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What is her speed vi at the bottom of the arc if she swings out to a 45. 0 ∘ angle before reversing direction?.
The bottom of the arc would be equal to v0 * 0.707, or 70.7% of her initial velocity.
What is initial velocity?
A physical system's behaviour in terms of the its motion is described using equations of motion. The equations are relationships between different terms and quantities. There are primarily three equations of motion, also known as the laws of constant acceleration, that apply when there is uniform acceleration. Any object subject to forces will accelerate. The object's velocity changes as a result of this acceleration. As a result, the initial velocity is indeed the object's speed before the change brought on by acceleration. The velocity will become the final velocity after the object has been accelerating for a while.
Her speed at the bottom of the arc would depend on the magnitude of the initial velocity and the angle she is swinging out to.
Assuming that the initial velocity is constant, the speed at the bottom of the arc can be calculated using the equation:
v = v0 * cos(θ)
where v0 is the initial velocity and θ is the swing angle.
In this case, v0 is the initial velocity and θ is 45°, so the speed at the bottom of the arc would be:
v = v0 * cos(45°)
Therefore, her speed at the bottom of the arc would be equal to v0 * 0.707, or 70.7% of her initial velocity.
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A cubical block of mass m and side 'a' is moving horizontally on a smooth horizontal surface with a velocity v 0
. The block collides with a ridge P and starts rotating about P. Find the minimum value of v 0
needed to overcome the ridge.
A cubical block of mass m and side a is moving horizontally on a smooth horizontal surface with a velocity v₀. The minimum value of v₀ is 4aω/3.
Consider the initial angular momentum of the block,
Li = Mv × x
Angular momentum of the block after it hits a certain point O is
Lf = Ic *ω
where, Ic is the moment of inertia
ω is angular velocity
From the parallel axis theorem, we have
Io = Ic + M * OC² = 1/6 M a² + M ( AC² + AO² ) = 1/6 M a² + 1/2 M a² = 2/3 M a²
Using the law of conservation of angular momentum, we have
1/2 M v = 2/3 M a² ω
v = (4a ω)/3
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how much heat is needed to raise the temperature of 12 kg/s of argon from 20 deg c to 120 deg c? the specific heat of argon is 0.3122 kj/(kg-k).
To elevate 12 kg/s of argon from 20 degrees Celsius to 120 degrees Celsius, 520.3 heat must be used.
What does "heat" actually mean?Heat is the outcome of kinetic energy moving within a material or an object, or from a power source to a medium or an object. Such energy can be transported through three different mechanisms: radiation, conduction, and convection.
What does heat actually mean?Heat energy is created by the motion of tiny atoms, molecules, or ions in solids, liquids, and gases. Heat energy is transferable from one thing to another. Heat is the flow or transfer that happens as a result of temperature difference between two objects.
[tex]C_{p} = 0.3122 = \frac{8.314}{39.95 X 10^{3} } = 0.2081 X 10^3\\ C_{p} = 0.2081 X 10^3 + 0.3122\\ C_{p} = 0.5203 X 10^3\\ C_{p} = 520.3[/tex]
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when this guitar string vibrates in the second harmonic, it creates a sound wave in air, traveling at 343 m/s. what is the frequency of this sound wave?
The waves produced in string and the waves produced in the air are different from each other. The only similarity they have is that their frequencies are equal—otherwise, there's no similarity between them. One of the waves is a transverse wave which is on the wire and the other wave is a longitudinal wave which is in the air. But their velocities too are different from each other.
velocity = wavelength x frequency
if the frequency is constant
wavelength ∝ velocity
Here, in this question, the velocity is given to be 343 m/s
From the above formula, we can solve for frequency,
Frequency = velocity/wavelength
Frequency = 343*λ⁻¹
Thus, the frequency of the sound is directly commensurable (proportional) to the haste(velocity) of the sound and here it's 343 * λ ⁻¹.
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if we connect two diodes in series pointing in opposite direction, we can still get the output of the circuit.
When two diodes are connected in opposing directions, both of them will constantly be in the reverse bias state and won't conduct until they break down.
How does a diode function? What is it?A diode is a semiconductor component that only allows one way for electricity to flow. These are the fundamental parts of semiconductors and are referred to as "active components." They are capable of keeping a steady voltage and control the flow of power.
Why are diodes necessary?Due to its capacity to limit electrical current flow to only one direction, diodes are utilized in circuit protection. This quality is advantageous since several electrical devices and components will break down or become damaged if current travels in the different path.
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a fluid enters a pipe and at the end of the pipe is a diverging nozzle. the diverging nozzle exhausts to the atmosphere. the fluid has properties of c p
The Bernoulli Principle causes pressure to fall in a converging nozzle.
the properties of the fluid was changed to the following conditions they are the change in density, energy, mass.
what was nozzle mean ?
A nozzle is a spout on the end of a hose or pipe that is used to regulate the flow of a fluid such as water or air. A convergent nozzle is one that begins large and gradually becomes smaller, resulting in a decrease in cross-sectional area. Due to mass conservation, a fluid must accelerate as it enters the smaller cross-section. The fluid must travel quicker to keep a consistent amount of fluid passing through the limited part of the nozzle.
The energy required to accelerate this fluid must originate from someplace. Some energy is included in the random motion of molecules, which we perceive as pressure. This random motion's energy.
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when charges mutually repel and distribute themselves on the surface of conductors, what becomes of the electric field inside the conductor?
The charges align themselves so that the conductor's internal field is zero.
What occurs if a charged surface is in close proximity to a conducting surface?Induced charges are created on the conductor when a charge is brought close to it. The internal free charges of the conductor, however, are gathered throughout its surface because the electric field inside the conductor must be zero in order to defeat the electric field of induced charges.
What takes place within a conductor?A substance that has a lot of free electrons accessible for the flow of current is said to be a conductor. Since there are numerous electrons, a powerful force of repulsion exists between them as well. As a result, the electrons move to lessen their attraction for one another.
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if their original solder sample weighed 3.1564g, what is the percent silver in the solder? calculate the concentration in ug/ ml of the four standards you will prepare in week 2 of the instrumental procedure
The process of joining two or more parts using silver solder, also referred to as "hard" soldering or silver brazing, involves melting and flowing filler metal into the joint.
What is silver soldering?The filler metal flows into the joint via capillary action and has a melting point above 420°C. A silver soldered joint is much stronger than a soft soldered joint because it consists of multiple layers that are all metallurgically connected to the surface of the parts being joined. Due to the fact that the filler material frequently contains silver, it is known as "silver" soldering.In contrast, welding involves melting the base metal during the joining process, letting the two halves of the molten joint flow together, and then allowing the joint to cool. The discussion below solely pertains to silver/hard soldering.In hard soldering, the surface's metallurgy is altered, the joints are metallurgically connected, and they become a permanent part of the underlying metal surface. Because of this, a joint that has been silver soldered is often times stronger than the base materials being joined and much stronger than one that has been soft soldered.To Learn more About silver solder refer to:
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in the first step of k-means with the standard euclidean distance metric, which points will be assigned to the cluster centered at p?
In the first step of the k-means with the standard euclidean distance metric, the mean of the observation values are assigned to the cluster.
K-means clustering is one of the commonly used clustering algorithms for partitioning observations into a set of k groups. This method tries to classify observations into mutually exclusive groups, so that observations within the same cluster are as similar as possible.
In k-clustering, each cluster is represented by its centre which corresponds to the mean of the observation values assigned to the cluster.
This implies that k-algorithm recognizes the k number of centroids.
The following required of k-means clustering are defined distance metric, number of clusters, initial guess of centroids.
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sea breezes group of answer choices involve onshore (toward the land) air flows that often develop in the afternoon. occur because warmer air is denser and settles to the surface of the land.
Sea breezes involes onshore air flows that often developes in afternon.
Hence, option A is the correct answer.
Sea Breeze is inflow of wind ocean towards land. This landward movement of wind caused due to lower heat capacity of land. Land portion gets hotted snappily as compared to ocean so due to hotting wind gets lower thick and low pressure zone devlopes on land while ocean water get hotted veritably slow so there's high pressure zone over ocean. High pressure wind over ocean face is thick and its thresholds to flow towards low pressure land.This process takes place in the evning but at night land breaths takes places which is rear of ocean breath i.e wind inflow from land towards ocean.Learn more about the Sea Breeze here: https://brainly.com/question/7380142
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