The angular acceleration of the body is 9059.125 rad.
Angular Acceleration is described as the time rate of alternate angular velocity. it's also expressed in radians per 2d consistent with the second. accordingly, α = d ω d t. Angular acceleration is also called rotational acceleration.
Calculation:-
a. angular acceleration = change in angular velocity
a = 2π (1700 - 200)/60.115
= 1.37 rad/sec²
b. θ = 01/2at²
= 0.5×1.37 ×(115)²
= 9059.125 rad.
Angular acceleration (α) can be described as angular velocity (ω) divided by acceleration time (t). rather, pi (π) increased by means of power pace (n) divided by acceleration time (t) multiplied by 30. This equation yields the usual angular acceleration SI unit of radians in line with 2d squared (Rad/sec²)
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the amplitude of a wave decreases gradually as the wave travels down a long, stretched string. what happens to the energy of the wave when this happens
The amplitude of a wave decreases gradually as the wave travels down a long, stretched string. The energy of the wave will also start decreasing
The energy of the wave is proportional to its amplitude
hence, a high amplitude wave will indicates a high energy and a low amplitude wave will indicate low energy
So , as the amplitude of the wave decreases , it indicates the energy of the wave is also decreasing .
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a bicyclist rides a long a circular track. if the bicyclist travels around exactly half of the track in 10.0s, what is his average angular speed?
The average angular speed of the bicyclist that travels around exactly half of the track in 100 s is 0.314 rad / s
ω = 2 π / T
ω = Angular speed
T = Time period
The time taken, t to complete half of the track is 10 s
T = 2 * t
T = 2 * 10
T = 20 s
ω = 2 * 3.14 / 20
ω = 0.314 rad / s
The speed of the object in rotational motion is called as angular speed. Just like the regular speed formula, this is also in terms of distance and time. But the distance is measured as θ whose value is taken in radians.
Therefore, the average angular speed of the bicyclist is 0.314 rad / s
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what is the electromagnetic frequency for the following variables? 3 t, 0.25 m, 3 m/s group of answer choices 6.75 v 2.25 v 20.25 v 0.75 v
Electromagnetic waves occur at frequencies between 104 and 1024 Hz and have wavelengths between 10-16 and 104 meters.
All types of electromagnetic waves have in common that their velocity in vacuum is 3.00 × 108 m/s. Radio waves form the long wavelength, low frequency end of the electromagnetic spectrum. The sections of the EM spectrum are named, in order of increasing energy,
gamma rays, X-rays, ultraviolet, visible light, infrared, and radio waves. Microwaves (used in microwave ovens) are a subsection of the radio segment of the EM spectrum. Electromagnetic waves are transverse waves. The wavenumber is k = 2π/λ, where λ is the wavelength of the wave. The wave frequency f is f = ω/2π, where ω is the angular frequency.
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Help me with this please I need it ASAP
Scavenger can help break down or reduce organic material into smaller pieces. These smaller pieces are then eaten by decomposers.
They may be called scavengers. They assist damage down or lessen organic cloth into smaller portions. these smaller portions are then eaten through decomposers. Decomposers consume useless materials and spoil them down into chemical components.
In the event that they weren't within the ecosystem, the plant life could no longer get essential vitamins, and dead count and waste might pile up. There are sorts of decomposers, scavengers and decomposers. Scavengers are animals that locate useless animals or flora and consume them. while they consume them, they spoil them into small bits.
What is the difference among a detritivore and a scavenger? Detritivores eat organic debris that they discover, from any organisms. Scavengers consume the soft tissues of dead/decaying animals. Detritivores consume organic particles that they discover, from any organisms.
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How much energy does a 50 kg rock have if it is sitting on the edge of a 15 m cliff.
The energy needed to lift a 50 kg rock on the edge of a 15 m cliff is 7350 Joules.
Energy exists in much unique paperwork. Examples of those are: light power, warmth energy, mechanical electricity, gravitational energy, electric energy, sound strength, chemical strength, nuclear or atomic electricity, and so forth. each shape can be transformed or modified into alternative forms.
The kinetic energy of an object is the power that it possesses because of its movement. it's far described as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having received this electricity in the course of its acceleration, the frame maintains this kinetic energy until its pace modifications.
Calculation:-
Energy = mgh
= 50 × 9.8 × 15
⇒ 7350 Joules
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The form of energy that includes visible light, x rays, and microwaves and that exhibits wavelike behavior as it travels through space is called.
Electromagnetic radiation is a form of energy that exhibits wavelike behaviour as it travels through space.
Examples of EMR include ultraviolet light, infrared light, microwaves, and radio waves.
In terms of science, electromagnetic radiation (EMR) is made up of electromagnetic (EM) field waves that travel over space while carrying radiant electromagnetic energy. It consists of X-rays, gamma rays, microwaves, infrared, visible light, ultraviolet, and radio waves. These waves are all a component of the electromagnetic spectrum.
Electromagnetic waves, which are synchronized oscillations of the electric and magnetic fields, are the traditional form of electromagnetic radiation. Due to the periodic alteration of the electric or magnetic field, electromagnetic radiation or waves are produced. Different wavelengths of the electromagnetic spectrum are created depending on the way this periodic change takes place and the power generated. Electromagnetic waves move at the speed of light, typically abbreviated as c, in a vacuum.
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Match the symbols used in electric circuit diagrams to their functions.
3F
00
a device that converts electric
energy into sound energy
a device that glows when it
receives current
a device that provides energy
to a circuit
a device that starts or stops
the flow of current
4
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what is the difference between air resistance and friction?
Answer:Friction is a force that opposes the motion of objects; friction can cause objects to slow down. Air resistance is a type of friction. Air resistance causes moving objects to slow down. Different physical properties, such as the shape of an object, affect the air resistance on an object.
Explanation:
which of the following is an effect of acid rain? solar radiation gets trapped in the atmosphere. respiratory and card
Solar radiation gets trapped because of acid rain as a effect of acid rain and has no effect on respiratory and card.
Acid rain: What is it?Rain or any other form of precipitation that is unusually acidic, that is, with high quantities of hydrogen ions, is referred to as acid rain (low pH). While the neutral pH range for most freshwater, particularly drinking water, is between 6.5 and 8.5, acid rain often has a pH between 4-5.
Acid rain's impact on solar radiation.Sulfur dioxide seems to be doing this by altering clouds, making them more efficient in blocking the sun's rays and reflecting radiation into space again. Scientists worry that lowering acid rain would hasten possible global warming because of this effect.
Effect on our Respiratory system.Sulfur dioxide and nitrogen oxides in the air can either create respiratory disorders or worsen existing conditions. Breathing becomes difficult for persons who have respiratory conditions such chronic bronchitis or asthma.
So, Solar radiation gets trapped because of acid rain as a effect of acid rain and has no effect on respiratory and card
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Two objects, A and B, are pushed across the floor. Object A is pushed across a longer distance. Which statement best describes what must be true for Object B to have a greater value of work? The distance traveled by Object A is higher. The distance traveled by Object B is lower. Equal forces are applied to Objects A and B. A greater force applied to Object B.
It is clear that, what would make object B to have a greater work is that a greater force applied to Object B.
What is the work done?We know that in physics, it is common to understand that work is done when the force that has been applied is said to move a distance in the direction of the force.
Now we have see that when force is applied to an object, we expect that the position of the object would change as a result of the fact that work has been done on the object as we can see. Thus by applying a greater force on B it does a greater work.
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Find the average velocity of the following 4 velocity measurements:
9.6 m/s
8.8 m/s
7.6 m/s
8.7 m/s
Leave your answer correct to three decimal places.
The average velocity of the following 4 velocity measurements will be d) 8.7 m/s
average of given velocities = sum of all velocities divided by number of velocity mentioned in the question
average velocity = ( v1 + v2 + v3 + v4 ) / 4
= ( 9.6 + 8.8 + 7.6 + 8.7 ) / 4 = 8.675 ≈ 8.7 m/s
correct answer d)
The average velocity of the following 4 velocity measurements will be d) 8.7 m/s
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Caroline leaves her house and walks north 6 blocks. She turns and heads east 8 blocks until she reaches mattie’s house. What is the shortest distance between caroline’s and mattie’s houses?.
a piano emits sound waves with frequencies that range from a low of about 28 hz to a high of about 4,200 hz. the speed of sound in air is approximately 343 m/s. what is the longest wavelength of sound produced by a piano? (in m)
From a low frequency of about 28 hz to a high frequency of roughly 4,200 hz, a piano emits sound waves. In air, sound travels at a speed of around 343 m/s. In other words, the piano's sound has a 12.25 m wavelength at its longest.
What is wavelength?A waveform signal's wavelength, which is the distance between two identical locations (adjacent crests) in the succeeding cycles, determines whether it is sent through space or via a wire. Typically, in wireless systems, this length is specified in meters (m), centimeters (cm), or millimeters (mm) (mm).
A velocity of wave is given as,
V = λ .f
V = Velocity of wave = 343 m/s
f = frequency of wave = 28hz and 4200hz
λ = wavelength = ?
λ[tex]_{min}[/tex] = V/f
λ[tex]_{min}[/tex] = 343/4200
λ[tex]_{min}[/tex] = 0.0816 m
λ[tex]_{max}[/tex] = V/f
λ[tex]_{max}[/tex] = 343/28
λ[tex]_{max}[/tex] = 12.25 m
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In the context of forecasting, the term _______ refers to the tendency of forecasts to consistently be larger or smaller than the actual values of the time series.
bias
In the context of forecasting, the term bias refers to the tendency of forecasts to consistently be larger or smaller than the actual values of the time series.
What is meant by the tendency of the forecast?When determining the direction of future trends, forecasting is a technique that makes educated estimates using historical data as inputs. Businesses use forecasting to choose how to spend their allocated funds or make plans for upcoming expenses.There are three fundamental categories: causal models, time series analysis and projection, and qualitative approaches.Businesses can improve their adjustments if they have knowledge of both current data and predictions for the future. Businesses can modify their existing operations and optimise their plans with the use of forecasts to change possible outcomes.The goal of causal forecasting is to attempt to predict or forecast future market events based on a variety of factors that are likely to affect the market's future movement.To learn more about tendency of forecast refer to:
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Since the river also flows South at 6.0m/s, how does dividing 120m and 8.0m/s make sense?
Dividing 120m and 8.0 m / s makes sense because 120 m is the distance travelled East and 8 m / s is velocity travelled East.
Using the velocity value of 6 m / s with 120 m would have been wrong because it is the South velocity. If you wanted to use 6 m / s velocity value, you have to find the distance travelled South. Since there is no acceleration, the time taken to travel East, South and the resultant distance will all be the same.
v = d / t
v = Velocity
d = Distance
t = time
For East,
t = 120 / 8
t = 15 s
tan θ = Vs / Ve
tan θ = 6 / 8
θ = 36.9°
For south,
tan 36.9° = d / 120
d = 0.75 * 120
d = 90 m
t = 90 / 6
t = 15 s
As you can see both time values are same.
Therefore, dividing 120m and 8.0 m / s makes sense because 120 m is the distance travelled East and 8 m / s is velocity travelled East.
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The sun is almost 22 million times as massive as the moon but it is nearly 400 times as far from earth. Which celestial body, the sun or the moon, exerts the greatest amount of gravitational force on you as you sit in class?.
The change in gravitational potential energy stored in 16 Jule.
What is gravitational potential energy?
gravitational potential energy
In classical mechanics, of the gravitational potential energy at in a location is equal to the work per unit mass that's would be needed to Move an object to that locations from a fixed references location. It is analogous to the electric potential with the mass playing the role of charge.
Sol-As per the given question ∆PE = mgh
M= skg
g= 4m/s^2
∆h = 2m
∆PE = 2m×4m×2m
= 16 Joules.
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what is the charge on the smaller of the two charges in coulombs? (note: if you calculate your answer using your result from part (a), make sure you didn't round it substantially.)
The Charge on smaller of the two charges is 1.747 × 10⁻⁷ C .
When two charges come together, an attractive force occurs for opposite charges and a repulsive force for similar charges. Coulomb's law can be used to calculate the electrostatic force between two charges if the distance between them is known.
Coulomb's Law defines the following equation for this: F.E = Kₑq₁ q₂/r²
Where,
F.E --> electrostatic force in Newton
Kₑ---> Coulomb constant
q₁---> charge of the larger charge in coulombs
q₂---> charge of the smaller charge in coulombs
r ---> distance between the objects in meters
we have given that ,
charge on larger charge(q₁) = 9.56 × 10⁻⁶C
Coulomb constant (Kₑ) = 8.988×109 Nm²C⁻²
distance between two charges = 0.45 m
repulsive force between charges = 0.015 N
putting all the values in above formula we get, 0.015 = (8.988×10⁹ Nm²C⁻² × q₂ × 9.56×10⁻⁶ C)/(0.45)²
=> q₂ = 1.747 × 10⁻⁷ Coulomb
Hence, the charge on smaller charger is 1.747× 10⁻⁷C
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Complete Question :
Two point charges totaling 9.5 uC exert repulsive force of 0.015 N on one another when separated by 0.45 m Randomized Variables.
Part (a) the charge on the larger of the two charges in coulombs = 9.56 * 10-6
Part (b) What is the charge on the smaller of the two charges in coulombs? (Note: If you calculate your answrer using YOur result from part (a). make sure you didn round it substantially.
A block of ice with a mass of 10 kg is resting on a frozen pond. How much
force will it take to accelerate the ice at 0.25 m.s^-2
Answer:
See below
Explanation:
Answer 3 and 6 with F = ma to find the 'a' or F
4 and 5 are also F = ma with a = 9.81 m/s^2
when a separate branch-circuit is run to a wall mounted oven, or to a counter-mounted cooking unit, the branch circuit size is based on of the nameplate rating of the appliance.
When a separate branch-circuit is run to a wall mounted oven, or to a counter-mounted cooking unit, the branch circuit size is based on of the nameplate rating of the appliance.
The ratings are shown in watts on the appliance nameplate. The circuit must be sized to provide the required number of amperes to operate the appliance at its nameplate rating.
One ampere is defined as the current that flows through a conductor when a potential difference of one volt is applied across it. The ampere is thus equivalent to the coulomb, the SI unit of charge. The ampere was originally defined as one tenth of the unit of electric current in the centimetre–gram–second system of units.
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How fast does a 1000 kg car have to move to have a momentum of 50,000 kg-m/sec?
A dog weighing 18 kg runs into a park at a velocity of. 63 m/s. What is the momentum of the dog?.
The momentum of the dog of mass 18 kg is 1134 kgm/s.
What is momentum?The Momentum of an obeject, can be defined as the product of its mass and velocity.
To calculate the momentum of the dog, we use the formula below.
Formula:
M = mv........... Equation 1Where:
M = Momentum of the dogm = Mass of the dogv = Velocity of the dogFrom the question,
Given:
m = 18 kgv = 63 m/sSubstitute these values into equation 1
M = (18×63)M = 1134 kgm/sHence, the momentum of the dog is 1134 kgm/s.
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A. 11.34 kg * m/s
i did the test
a 5.20 g bullet moving at 672 m.s strikes a 700 g wooden block at rest on a frictionless surface. the bullet emerges, traveling in the same direction with its speed reduced to 428 m/s. (a) what is the resulting speed of the block? (b) what is the speed of the bullet-block center of mass?
The centroid is a unique point at the center of the mass distribution in space that has the property that the weighted position vectors with respect to this point sum to zero.
Similar to statistics, the centroid is the average position of the mass distribution in space. In physics, we say that the centroid is the point at the center of the mass distribution in space (also called the equilibrium point) where the sum of the weighted relative positions of the distributed masses is zero. Simply put, the center of gravity is the relative position of an object.
Choose +X along the first direction of travel and save the pulse as follows: 672m/s)
= (5.2 g )(428m/s) + (700g)ν
2/4 4.4 4 4.4 2 .4 4.4 2
= 1.81 m/s. The constant velocity is a result of conservation of momentum. Choose to evaluate it before collision. s)
=4.96m/s
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a series circuit has individual resistor values of 200 ohm, 86 ohm, 91 ohm, 180 ohm, and 150 ohm. what is the total resistance of the circuit?
707 ohms . (You add up all the resistors there's 5 total 200, 86, 91, 180, and 150. Add all ohms for total resistance of the circuit)
How do you find the total of a series?When resistors are connected one after each other this is called connecting in series. This is shown below. To calculate the total overall resistance of a number of resistors connected in this way you add up the individual resistances. This is done using the following formula: Rtotal = R1 + R2 +R3 and so on.
What exactly are resistors and what is their unit?A passive electrical component known as a resistor increases current flow resistance. They can be found in almost all electrical and electronic networks. Resistance is measured in terms of ohms
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you drop a penny into a well on the earth's surface. it hits the water in two seconds. how far did it fall before reaching the water
The distance a penny travelled before reaching the water surface is 19.6 m. Consider the acceleration of the penny as 9.8 m / s^2.
What is acceleration?
Acceleration is the rate of change of the velocity with respect to the time taken. it is a vector quantity which is seen as moving faster or happening quickly. The standard unit is metre per second squared.
The distance or depth of the well can be calculated as,
d = ut + at^2 / 2
where d = depth of the well, u = initial velocity, t = time for reaching the water, a = acceleration of the penny.
d = (0 x 2) + 0.5 (9.8) (2)^2 = 19.6 m
Therefore, the stone falls for 19.6 m when it travels for 2 seconds before hitting the water when the acceleration is 9.8 m/s^2.
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an air-conditioning system requires a 20m long section of 15cm diameter duct work to be laid underwater. determine the upward force the water will exert on the duct.
The upward force the water will exert on the duct is 3.463kN.
Here we have to find the buoyancy force:
Buoyancy force:
The buoyant force is the upward force exerted on an object wholly or partly immersed in a fluid. This upward force is also called Upthrust. Due to the buoyant force, a body submerged partially or fully in a fluid appears to lose its weight, i.e. appears to be lighter.
Formula to calculate buoyancy forces:
B = ρgV
ρ= fluid density
g = acceleration due to gravity
V = fluid volume
V = πr²L
So;
B = ρgπr²L
Given data:
g = 9.8 m/s²
r = 15 cm = 0.15m
L = 20m
ρ = 1000
B = 1000× 9.8 × 22/7 ( 0.15/2)² × 20
= 3.465kN
Therefore the upward force is 3.465kN.
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what is the maximum total force exerted on a 50-kg astronaut by her seat during the launch of a space shuttle?
Force exerted by the astronaut was 625 newtons
what is force?
A force in physics is an effect that has the power to alter an object's motion. A force can cause an object with mass to alter its velocity, or accelerate (for example, moving from a condition of rest). Intuitively, a push or a pull can also be used to describe force. Being a vector quantity, a force has both magnitude and direction.
formula to find the force was
Force= mass x acceleartion.
max acceleration (slope) occurs from 1min to 2 min, I see the slope as
the acceleration was found to be 12.5
Force=50 x 12.5 Newtons
=625 newtons.
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In a physics lab, you attach a 0. 200 kg air-track glider to the end of an ideal spring of negligible mass and start it oscillating. The elapsed time from when the glider first moves through the equilibrium point to the second time it moves through that point is 2. 60 s.
If you attach an ideal spring of negligible mass to the end of a 0. 200 kg air-track glider and start it oscillating, the spring constant (K) is equal to 0.292.
Time (s) = 2.6 s, mass (m) = 0.2 kilogramme
the spring constant, please (K)
The glider moves from the equilibrium position and back to it in half the period due to the spring constant (K) = m2. Therefore, the period is equal to 2 x time
period (T) = 2.6×2 = 5.2 s,
and ω= 2π/ T = 2π / 5.2 = 1.21.
spring constant (K) is equal to m2 = 0.2 x 1.21.
0.292 is the spring constant (K).
The stiffness of the spring is quantified by the spring constant, k. For various materials and springs, it varies. The spring becomes stiffer and more challenging to stretch as the spring constant increases.
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what type of mass wasting involves earth materials in which the descending mass remains relatively intact and moves along a well-defined surface?
The type of mass wasting that involves earth materials in which the descending mass remains relatively intact and moves along a well-defined surface is a slide.
There are four types of mass wasting. They are:
FlowSlumpSlideFallA slide is a descending mass rock remaining relatively coherent moving along one or more well defined surfaces. A rock slide is a mass of bed rock rapidly sliding along a declined surface like bedding plane or a major fracture.
Therefore, the type of mass wasting that involves earth materials in which the descending mass remains relatively intact and moves along a well-defined surface is a slide.
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What can change the way enzymes work?.
The way enzymes work: inclusive of temperature, pH, and awareness.
Enzymes are proteins that act as biological catalysts by way of accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into exclusive molecules known as merchandise. An enzyme is a biological catalyst and is nearly usually a protein. It quickens the rate of a particular chemical response within the cellular. The enzyme is not destroyed in the course of the reaction and is used time and again.
There are several elements that have an effect on the speed of an enzyme's motion, inclusive of the attention of the enzyme, the concentration of the substrate, temperature, hydrogen ion attention (pH), and the presence of inhibitors.
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An object is moving on a frictionless surface to the right and experiencing a net force that is directed to the right. The magnitude of the force is decreasing with time. The speed of the object is.
The speed of the object is increasing. The force is decreasing, but since the surface is frictionless, the object continues to accelerate in the direction of the force.
Since the force is in the same direction as the velocity (moving to right), hence speed of the object will increase with time. The decrease in magnitude of force will only result in the decrease in the rate of increase of speed but the speed in total will still increase.
The magnitude of a force is the amount of force that is applied to an object. while force is defined as a mass under acceleration. Velocity is the speed and direction of an object's motion.
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