Answer:
A battery in a pair of headphons
Explanation:
Answer: A
Explanation:
A600kg car is acted force of 1200N starting from rest.how travel in 10 seconds?
Answer:
x= 100 m
Explanation:
m= 600 kg
t= 10 s
F= 1200N
v0= 0
-----
F=ma
a=F/m
x= (v0)t + (1/2)(a)(t^2)
x= (1/2)(F/m)(t^2)
x= (1/2)(1200/600)(10^2)
x= 100m
in section 3 of the dsm-5-tr, the diagnosis of a(n) will require meeting the following sets of criteria: determining how a person functions in terms of identity and self-direction, determining how a person functions in relationships with others, and ratings of specific traits.
The diagnosis of a personality disorder in section 3 of the DSM-5-TR will require meeting criteria related to determining how a person functions in terms of identity and self-direction.
Clinicians use clinical interviews, observations, and psychological assessment measures to gather information and evaluate an individual's functioning in these three areas. They consider the individual's reported experiences, behavioral patterns, and the impact of these difficulties on their overall well-being. The specific criteria for each personality disorder outlined in the DSM-5-TR guide clinicians in making a comprehensive and accurate diagnosis.
Section 3 of the DSM-5-TR provides criteria for the diagnosis of personality disorders, emphasizing the assessment of identity and self-direction, relationships with others, and ratings of specific traits. This comprehensive approach helps clinicians understand the individual's personality functioning and make appropriate diagnostic determinations.
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True or False. Average velocity can be expressed as (Δs/Δt) where s(t) is the position function.
The given statement "Average velocity can be expressed as (Δs/Δt) where s(t) is the position function." is True. Average velocity is defined as the change in position over a given time interval.
This can be expressed mathematically as (Δs/Δt), where Δs is the change in position and Δt is the change in time. The position function, s(t), gives the position of an object at any given time t. By calculating the difference in position over a specific time interval, we can determine the average velocity of the object during that interval. This calculation is a fundamental concept in calculus and physics, as it allows us to understand how objects move and change over time. Therefore, it is true that average velocity can be expressed as (Δs/Δt) where s(t) is the position function.
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An uncharged spherical conductor hangs by an insulating thread. You bring a negatively charged rod near
from the left side. The net charge on the hanging conductor’s left side is (choose one):
a. Positive
b. Negative
c. Neutral
Answer:
Positive
This type of charging is called charging by induction In this the uncharged body gets the opposite type of charge.when a negatively charged rod is bring near uncharged spherical conductor it attracts positive charge and repels negative charges
so In left side all positive charges appears and in right side all negetive
Types of methods of charging
Charging by contact charging by rubbing charging by induction.Please select the word from the list that best fits the definition
Is equal to mass multiplied by velocity
Answer:
Hi... Your answer is impulse
The half-life of Radon-222 is 3.8 days. Calculate how long a 48g sample of radon will last before it contains only 3g of radon.
PLS HELP FOR MY GCSE REVISION! ill give brainliest
Answer:
48 / 3 = 16
1 / 16 of the original amount is to remain
4 half lives = 1/2 * 1/2 * 1/2 * 1/2 = 1/16
After 4 half lives 1/16 of the original amount is present
4 half-lives * 3.8 days / half-life = 15.2 days
After 15.2 days only 3 g will be present
what is the ability to be stretched or drawn inti thin wire without breaking?
The ability to be stretched or drawn into thin wire without breaking is referred to as ductility.
Metals are commonly ductile, which means that they can be drawn into wires or bent into different shapes without breaking. The term ductile refers to a material's ability to be stretched, molded, or shaped without breaking or fracturing. If a material is ductile, it can be deformed by tensile stress without fracturing. Ductility is a valuable property because it allows a metal to be stretched into wires or drawn into thin sheets, making it more useful and versatile.A few factors that affect ductility are the grain size of the material, temperature, and purity of the metal. In general, metals with smaller grain sizes are more ductile than metals with larger grain sizes.
As temperature rises, so does ductility, but only up to a certain point. At extremely high temperatures, ductility decreases as the metal begins to soften too much. Similarly, a higher degree of purity can increase a metal's ductility by reducing the number of impurities that might cause the metal to crack or break during deformation. In summary, ductility is a critical property for a wide range of materials, especially metals.
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technician a says an inductive wire tracer generates a dc voltage in the wiring being tested. technician b says an inductive wire tracer checks for high current load in the circuit. who is right?
Technician A is incorrect, and Technician B is correct.
An inductive wire tracer, also known as an inductive toner or tone generator, is a tool used to trace or locate wires within a circuit or electrical system. It works based on the principle of electromagnetic induction.
Technician A's statement that an inductive wire tracer generates a DC voltage in the wiring being tested is incorrect. An inductive wire tracer does not generate a DC voltage in the circuit. Instead, it generates an alternating current (AC) signal or tone, typically at a specific frequency. This AC signal induces an electromagnetic field around the wire being traced.
Technician B's statement that an inductive wire tracer checks for high current load in the circuit is correct. When the inductive wire tracer is used, the user typically follows the wire or cable path while holding the receiver or tracer probe near the target wire. The receiver picks up the electromagnetic field generated by the tracer and provides an audible or visual indication to the user. It helps identify the presence and path of the wire being traced.
It's important to note that an inductive wire tracer does not check for the actual current load in the circuit. Its primary purpose is to trace or locate wires, not to measure current flow or load characteristics. Other tools and instruments, such as clamp meters or multimeters, are used for measuring current or load in a circuit.
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Xavier is administering medication to his patient. He administers four cups 4 points
of liquid with two ounces in each and one cup of liquid with three ounces.
How many ounces of liquid did the patient get? *
9 ounces
11 ounces
14 ounces
24 ounces
Answer:
11 ounces
Explanation:
The patient gets 11 ounces of liquid.
From the description of this problem:
Xavier administers four cups of liquid each containing two ounces
The number of ounces in the four cups = 2 x 4 = 8ounces
Also,
One cup of the liquid contains 3 ounces.
Total number of ounces administered = 8 + 3 = 11 ounces.
Wat is acceleration!???
Explanation:
Acceleration , rate at which velocity changes with time, in terms of both speed and direction.What device did Faraday invent that harnessed the power of electric current
Faraday invented the electric generator that harnessed the power of the electric current.
Michael Faraday, a British scientist, is credited with the invention of the electric generator, also known as the dynamo. In 1831, Faraday discovered that a changing magnetic field could induce an electric current in a wire. He then designed a machine that utilized this principle to generate electricity.
Faraday's generator consisted of a rotating disk of copper wire near a stationary magnet. As the disk rotated, the magnetic field induced a current in the wire, producing electricity.
Faraday's invention was a major breakthrough in the field of electromagnetism and paved the way for the development of modern electrical power systems. Today, electric generators are widely used to produce the electricity that powers homes, businesses, and industries around the world.
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A loaded 365 kg toboggan is traveling on smooth horizontal snow at 4.20 m/s when it suddenly comes to a rough region. The region is 6.00 m long and reduces the toboggan's speed by 1.50 m/s .
What average friction force did the rough region exert on the toboggan?
-i've tried 604.9 and 468.1
By what percent did the rough region reduce the toboggan's kinetic energy and speed?
The average friction force exerted on the toboggan is 191.6 N and percent reduction in speed is 35.7%.
What is acceleration?Acceleration is the amount at which the velocity of an object changes over time. An object can accelerate by changing its speed, direction of motion, or both.
What is the average friction force exerted on the toboggan when it comes to a rough region?Equation:
mass of toboggan (m) = 365 kg
initial speed of toboggan (v1) = 4.20 m/s
final speed of toboggan (v2) = 2.70 m/s
distance over which toboggan slows down (d) = 6.00 m
acceleration of toboggan (a) = (v2² - v1²)/(2dd)
a = (v2² - v1²)/(2d) = (2.7² - 4.2²)/(26) = -0.525 m/s² (negative because acceleration is in opposite direction to motion)
friction force (F) = m*a = 365 kg * (-0.525 m/s²) = -191.6 N (negative because friction is in opposite direction to motion)
The average friction force exerted on the toboggan is 191.6 N.
By what percent did the rough region reduce the toboggan's kinetic energy and speed?Initial kinetic energy of toboggan (KE1) = 0.5 * m * v1² = 3663.3 J
Final kinetic energy of toboggan (KE2) = 0.5 * m * v2² = 2238.5 J
Percent reduction in kinetic energy = [(KE1 - KE2) / KE1] * 100% = [(3663.3 - 2238.5) / 3663.3] * 100% = 38.9%
Percent reduction in speed = [(v1 - v2) / v1] * 100% = [(4.2 - 2.7) / 4.2] * 100% = 35.7%
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If 5x instead of 10x oculars were used in your microscope with the same objectives, what magnifications would be achieved?
The magnification is doubled when 10x oculars are used instead of 5x in our microscope with the same objectives.
When multiple lenses are lined together, the overall magnification can be calculated by multiplying the individual magnifications of each lens.
M = M1 × M2 × M3 × ... × Mn
where M is the overall magnification and M1, M2, M3, ..., Mn are the magnifications of the individual lenses.
Let M be the magnification of the objective, then the overall magnification,
when 5x ocular is used,
M1 = M × 5
M1 = 5M
when 10x ocular is used
M2 = M × 10
M2 = 10M
Therefore, the magnification is doubled when 10x ocular is used instead of 5x in our microscope with the same objectives.
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what is the tension in the string as the block falls?
The tension in the string as the block falls is equal to the weight of the block.
When the block is falling, the only force acting on it in the vertical direction is its weight. According to Newton's second law, the net force acting on an object is equal to its mass multiplied by its acceleration. Since the block is in free fall, its acceleration is equal to the acceleration due to gravity (denoted by "g").
The weight of the block is given by the formula: weight = mass × acceleration due to gravity (W = mg). Therefore, the tension in the string, which is the force supporting the block, must be equal to its weight, which is given by the mass of the block (m) multiplied by the acceleration due to gravity (g).
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what is the difference between atoms and ions
Answer:
\({\huge\purple{\fbox{{࿐αɴѕωєя࿐}}}}\)
\( \huge\red{\boxed{\mathfrak{Atoms}}}\)
The smallest unit of an element.Not independent in solution.Atoms form molecules.Electrons and protons are equal.Unstable in nature.\( \huge\red{\boxed{\mathfrak{Ions}}}\)
Single particle or collection of particles.Is independent in solution.Ions form electrovalent bond.Electrons and protons are unequal.Stable in nature.✏ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
\( \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ RainbowSalt2222 ࿐ }} \mid}}\)
Compare the health of two ecosystems; one with a biodiversity index of 0.65 and the other with a biodiversity index of 0.23.
Based on the biodiversity indices given, the ecosystem with a biodiversity index of 0.65 is likely to be healthier compared to the ecosystem with a biodiversity index of 0.23.
What is the ecosystemsBiodiversity is crucial for ecosystem health, as it encompasses species variety and abundance. Higher biodiversity = healthier ecosystem with more species and balanced community.
Two ecosystems have biodiversity indices of 0.65 and 0.23. The one with a biodiversity index of 0.65 has a high level of biodiversity. This ecosystem has diverse plant and animal species. The ecosystem's biodiversity index of 0.23 is lower than the previous one. Fewer species means less ecological diversity and interaction in the community. Less biodiversity means weaker ecosystem, vulnerable to harm and less adaptable.
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I need someone to explain this to me, I am confuse when it comes to this worksheet
The mathematical formula for frequency and speed relationship is v = λf, where v denotes the wave's speed in meters per second, λ the wave's wavelength in meters, and f the wave's frequency in Hertz.
In a transverse wave, how is amplitude measured?The largest deviation of any point on the string from its position when the string is at rest serves as the amplitude measurement for transverse waves, as the wave on a plucked string.
What are the transverse wave's amplitude and wavelength?In this demonstration, the distance between the stick's maximum vertical displacement and its equilibrium point will determine a wave's amplitude (the point of zero displacement). The overall distance a wave travels during a single complete cycle is known as its wavelength (λ).
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imagine that a continuous random variable X defined on the range [0,1] follows the probability density function p(X=x∣a)={(a+1)xa0 for x∈[0,1] everywhere else . where a>0 is a parameter that controls the shape of the distribution. Answer the following questions; you must include appropriate working. 1. Plot the probability density function of X when a=1/2 and a=2 for x∈[0,1]. 2. Determine the expected value of X, i.e., E[X]. 3. Determine the expected value of 1/X, i.e., E[1/X]. 4. Determine the variance of X, i.e., V[X]. 5. Determine the median of X. (hint: the answers to Q4.2 through Q4.5 will all be functions of a).
The probability density function of X is plotted for a=1/2 and a=2.
The expected value of X (E[X]) is determined.
The expected value of 1/X (E[1/X]) is determined.
The variance of X (V[X]) is determined.
The median of X is determined.
When a=1/2, the probability density function of X is given by p(X=x∣a)=((1/2)+1)x(1/2)^0=(3/2)x for x∈[0,1]. When a=2, the probability density function becomes p(X=x∣a)=(2+1)x^2=3x^2 for x∈[0,1]. To plot the probability density function, we can assign different values of x within the range [0,1], calculate the corresponding probabilities using the given formulas, and plot the points on a graph.
The expected value of X (E[X]) is calculated by integrating the product of X and its probability density function over the range [0,1]. For a=1/2, E[X] = ∫(x * (3/2)x) dx from 0 to 1. For a=2, E[X] = ∫(x * 3x^2) dx from 0 to 1. By evaluating these integrals, we can determine the expected values.
The expected value of 1/X (E[1/X]) is calculated similarly to E[X], but instead of integrating X, we integrate 1/X using the respective probability density functions for different values of a.
The variance of X (V[X]) can be computed by taking the second moment of X (E[X^2]) minus the square of the first moment (E[X]) squared. V[X] = E[X^2] - (E[X])^2. By calculating E[X^2] using the probability density function and the expected values obtained in step 2, we can determine the variances for different values of a.
The median of X is the value of X such that the cumulative distribution function (CDF) is equal to 0.5. To find the median, we integrate the probability density function from 0 to the median value and set it equal to 0.5. Solving for the median provides its value in terms of the parameter a.
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what is centripetal force
Answer:
Centripetal force is defined as, "the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation.
Explanation:
Just a few examples are the tension in the rope on a tether ball, the force of Earth's gravity on the Moon, friction between roller skates and a rink floor, a banked roadway's force on a car, and forces on the tube of a spinning centrifuge. Any net force causing uniform circular motion is called a centripetal force.
A certain kind of light has a wavelength of 850 nm. What is the frequency of this light in hz?.
So, the frequency of that light approximately \( \sf{\bold{3.53 \times 10^{14} \: Hz}} \)
IntroductionHi ! I will help you to explain the relationship between velocity of electromagnetic waves in a vacuum with frequency and wavelength. We all know that all of the type of electromagnetic wave, will have the same velocity as the speed of light (because the value is a constant), which is 300,000 km/s or \( \sf{3 \times 10^8} \) m/s. As a result of this constant property, the shorter the wavelength, the greater the value of the electromagnetic wave frequency. This relationship can also be expressed in this equation:
\( \boxed{\sf{\bold{c = \lambda \times f}}} \)
With the following condition :
c = the constant of the speed of light in a vacuum ≈ \( \sf{3 \times 10^{8} \: m/s} \) m/s\( \sf{\lambda} \) = wavelength (m)f = electromagnetic wave frequency (Hz)Problem SolvingWe know that :
c = the constant of the speed of light in a vacuum ≈ \( \sf{3 \times 10^{8} \: m/s} \) m/s\( \sf{\lambda} \) = wavelength = 850 nm = \( \sf{8.5 \times 10^2 \times 10^{-9}} \) m = \( \bold{8.5 \times 10^{-7} \: m} \)What was asked :
f = electromagnetic wave frequency = ... HzStep by step :
\( \sf{c = \lambda \times f} \)
\( \sf{3 \times 10^8 = 8.5 \times 10^{-7} \times f} \)
\( \sf{f = \frac{3 \times 10^8}{8.5 \times 10^{-7}}} \)
\( \sf{f \approx 0.353 \times 10^{8 -(-7)}}} \)
\( \sf{f \approx 3.53 \times 10^{-1} \times 10^{15}} \)
\( \boxed{\sf{f \approx 3.53 \times 10^{14} \: Hz}} \)
Conclusion :So, the frequency of that light approximately \( \sf{\bold{3.53 \times 10^{14} \: Hz}} \)
See More :What affects photon energy https://brainly.com/question/26434060What is the foton energy https://brainly.com/question/26518899If I hold an .63kg basketball 2 meters above the
ground, how much potential energy does it have?
If I drop the basketball from this height, how
much kinetic energy would it have right before it hits the floor?
Answer:
P.E.= 12.348 joules
K.E.=1.26 joules
Explanation:
w
5
4. If it takes 105 calories to warm 100 g of aluminum from 20° C to 25° C, what is the
Specific heat of aluminum?
Answer:
Given parameters:
Amount of heat = 105calories
Mass of aluminium = 100g
Initial temperature = 20°C
Final temperature = 25°C
Unknown:
Specific heat of aluminium = ?
The amount of heat absorbed by a substance is the quantity of heat required to change the temperature of a system by 1°C.
Mathematically;
H = m C (ΔФ)
where H is the amount of heat
m is the mass of the substance
C is the specific heat
ΔФ is the change in temperature
Now to find specific heat capacity, we make it the subject of the formula of the expression;
C = \(\frac{H }{m x change in temperature}\)
Change in temperature = Final temperature - initial temperature
= 25°C - 20°C
= 5°C
C = \(\frac{105calories}{100g x 5}\) = 0.21cal/g°C
The specific heat of the aluminium is 0.21cal/g°C
A calorie is the amount of heat needed to raise the temperature of.
Answer:
one gram of water to one-degree Celsius.
Explanation:
Change the following negative instructions to positive instructions:
Stop jumping on the sofa
I want you to stop running now
Can you pick up your toys?
Don’t push him off the slides
Can you go to your room and clean up the mess?
Don’t put your legs on the table
Stop throwing the crayons
I don’t want you to sit near the door
Stop shouting
Stop interrupting me
Here are the positive instructions corresponding to the given negative instructions:
1. Please refrain from jumping on the sofa.
2. I would like you to walk instead of running now.
3. Could you please pick up your toys?
4. Please avoid pushing him off the slides.
5. Could you go to your room and clean up the mess?
6. Please keep your legs off the table.
7. Let's stop throwing the crayons.
8. I would prefer if you didn't sit near the door.
9. Let's lower our voices and avoid shouting.
10. Please wait for your turn to speak and avoid interrupting me.
An acorn falls 10 meters in 4 seconds. What is its average velocity?
Answer:
Average velocity, V = 2.5m/s
Explanation:
Given the following data
Displacement = 10m
Time = 4secs
Average velocity can be defined as the rate of change in displacement with time. Velocity is a vector quantity and as such it has both magnitude and direction.
Mathematically, average velocity is given by the equation;
\(Velocity = \frac{displacement}{time}\)
\(V = \frac{d}{t}\)
Substituting into the above equation;
\(V = \frac{10}{4}\)
Average velocity, V = 2.5m/s
What is radiation produces a wave full energy.
Answer:
electromagnetic radiation hopefully
An object that weighs 75 N is pulled on a horizontal surface by a horizontal pull of 50 N to
the right. The friction force on this object is 30 N to the left. What is the acceleration of the
object?
Using the Newton Laws, the acceleration of the object is 2.67m/s²
Based on the problem, we can draw the diagram as below to help our understanding.
From the information provided we know that:
F = 50 N (horizontal pull)
W = 75 N
f = 30 N (friction force)
From the picture, we could focus first on the X-axis, where the horizontal force and the friction force work on the object. We would apply the second law of Newton for this axis since there is movement happening within this axis.
∑Fx = m.a
F - f = m.a
50 - 30 = m.a
m.a = 20N ... (i)
Next, we will focus on the Y-axis. In this axis neutral force and weight are working but not resulting to any movement within the axis. ence, we will be applying the first law of Newton:
∑F = 0
N - W = 0
N = W
N = 75N ... (ii)
Since we know that weight is the result of multiply between mass and gravity, we could find the mass of the object by assuming the gravity is 10m/s²
W = m.g
75 = m (10)
m = 7.5kg ... (iii)
We could subtitute the equation (iii) into equation (i) to find the acceleration of the object:
m.a = 20N
(7.5) a = 20N
a = 2.67m/s²
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How does the mass of an object affect its acceleration?
Answer:
as the mass of an object is increased, the acceleration of the object is decreased & vice-versa.
Explanation:
hope this helps!
a 1200 kg car travels at a constant velocity of 15 m/s. what is the net force on the car?
Answer:
The answer is 18,000 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × accelerationFrom the question we have
force = 1200 × 15
We have the final answer as
18,000 NHope this helps you
why keep your engine running when you wait to pick up your husband when you could just stop the engine to save gas, meanwhile, keeping your lights, air conditioning, and wipers running normally?
There are several reasons why you might want to keep your engine running when you are waiting to pick up your husband, even if you could stop the engine to save gas.
One reason is that keeping the engine running allows you to use the car's electrical systems, such as the lights, air conditioning, and wipers, without draining the battery. If you turn off the engine and use these systems, the battery will eventually drain, and you may have to jump-start the car to get it running again.
Another reason is that turning off the engine and restarting it can be hard on the engine and may reduce its lifespan. When you turn off the engine, all of the internal components come to a stop and may experience wear and tear when the engine is restarted. By keeping the engine running, you can avoid this additional wear and tear.
Finally, keeping the engine running may be more convenient and safer. It allows you to keep the car's systems running and be ready to drive at a moment's notice, which may be important if you are waiting in a potentially dangerous or unfamiliar location.
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