Cascading style sheet(CSS) rules are comprised of selectors and declarations.
What is Cascading style sheet?When describing the display of a document published in a markup language like HTML or XML, Cascading Style Sheets (CSS) is the language utilized (including XML dialects such as SVG, MathML or XHTML). Along with JavaScript and HTML, CSS is a key component of the World Wide Web. Layout, color, and font customization are all possible with CSS, which is made to separate display from content. By defining the pertinent CSS in a separate file, this separation can make content more accessible, give definition of presentation characteristics more freedom and control, and allow numerous web pages to share formatting.
To learn more about Cascading style sheet, visit:
https://brainly.com/question/14122880
#SPJ4
Order the electromagnetic waves from lowest frequency (1) to highest (4). gamma: infrared: x-ray: visible light:
Gamma: 4
Infrared: 1
X-Ray: 3
Visible Light: 2
Infrared has the longest wavelength between the four options, meaning that it has the lowest frequency. Since the longer the frequency, the lower the frequency. While the shorter the wavelength, the higher the frequency.
The portions of the electromagnetic spectrum are called from greatest to lowest energy: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. Microwaves (such as those used in microwave ovens) are a subset of the electromagnetic spectrum's radio wave segment.
Next would be visible light since it has the second longest wavelength out of the given options. Then it would be X-Ray. And finally Gamma since it has the shortest wavelength.
Learn more about to electromagnetic
https://brainly.com/question/17057080
#SPJ4
10. Unless a light ray comes into contact with a surface or enters a different material, it travels in a
Unless a light ray comes into contact with a surface or enters a different material, it travels in a straight line.
When light enters a medium with a different speed or transitions from a fast to a slow medium, refraction occurs. According to Snell's law, if a light ray is incident ordinarily on the surfaces, then deviating from the normal will always lengthen the travel time.
Theoretically, sine (angle of incidence)*index of refraction of the incident media = sine (angle of refraction)*index of refraction of the refractive medium
Sine (0)=0 because the angle of incidence is 0 degrees.
As a result, the light ray will travel straight.
Learn more about the refraction of light here: https://brainly.com/question/27932095
explain the way to get wind energy for our use
Answer:
YOUR ANSWER IS HERE....
Wind turbines work on a simple principle: instead of using electricity to make wind—like a fan—wind turbines use wind to make electricity. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity.USES OF THE WIND ENERGY.generating electricity.generating electricity.milling grain.generating electricity.milling grain.pumping water.generating electricity.milling grain.pumping water.powering cargo ships (via kites)generating electricity.milling grain.pumping water.powering cargo ships (via kites)reducing carbon footprint.generating electricity.milling grain.pumping water.powering cargo ships (via kites)reducing carbon footprint.sailing.generating electricity.milling grain.pumping water.powering cargo ships (via kites)reducing carbon footprint.sailing.windsurfing.generating electricity.milling grain.pumping water.powering cargo ships (via kites)reducing carbon footprint.sailing.windsurfing.land surfing.HOPE IT HELPS! MARK AS BRAINLIAST.There is a 5mA flowing through an 18k register. What is the voltage drop?
The voltage drop across the 18 kΩ resistor is 90 volts. This means that when a current of 5 mA flows through an 18 kΩ resistor, there is a potential difference of 90 volts across the resistor.
To calculate the voltage drop across a resistor, Ohm's Law can be applied. Ohm's Law states that the voltage (V) across a resistor is equal to the product of the current (I) flowing through it and the resistance (R) of the resistor. The formula for Ohm's Law is V = I * R.
Given:
Current (I) = 5 mA = 5 * 10^(-3) A
Resistance (R) = 18 kΩ = 18 * 10^(3) Ω
Using Ohm's Law, we can calculate the voltage drop (V):
V = I * R
= (5 * 10^(-3) A) * (18 * 10^(3) Ω)
= 90 V
Therefore, the voltage drop across the 18 kΩ resistor is 90 volts. This means that when a current of 5 mA flows through an 18 kΩ resistor, there is a potential difference of 90 volts across the resistor.
for such more questions on voltage
https://brainly.com/question/1176850
#SPJ8
Jibari walks 40. 0 meters east in 120. 0 seconds. He then walks 30. 0 meters west in 60. 0 seconds. What is his average velocity for the trip??
Answer:
0.389 meters per second
Explanation:
1. Get your knowns
a. 40 meters per 120 seconds
b. 30 meters per 60 seconds
2. Add
Total distance = 40 meters + 30 meters = 70 meters
Total time = 120 seconds + 60 seconds = 180 seconds
3. Divide
Average velocity = 70 meters / 180 seconds
= 7 meters / 18 seconds
= 0.388... meters per second
list the four possible subshells in the quantum-mechanical model.
S, P, D, and f are the four potential subshells in quantum mechanical theories. The angle momentum quantum number, l, is represented by these letters in numerical form.
What is subshells?A subshell is a group of states that make up a shell and are identified by the azimuthal quantum number, l. Subshells s, p, d, and f are represented by the values l = 0, 1, 2, and 3, respectively. The equation 2(2l + 1) states how many electrons can fit into a subshell at once.
The circular routes that electrons take in an atom's shells as they circle its nucleus. (In line with the Bohr Model). The primary quantum number, n, serves as a representation of the shells. Additionally, each shell is divided once more into many subshells.
Four subshells are present: s, p, d, and f.
For instance, the first shell has just one sub-shell, which is s.
There are two sub-shells in the second shell: s and p.There are three sub-shells in the third shell: s, p, and d.The remaining shells are made up of all four subshells: s, p, d, and f.
Learn more about subshells
https://brainly.com/question/30792037
#SPJ4
Which is the best term to describe a chemical reaction in which the reactants have less potential energy than the products?
A. thermal conductor
B. thermal insulator
C. endothermic
D. exothermic
Answer:
C.endothermic
Explanation:
chemical reactions
Answer:
C
Explanation:
The time to assemble a certain type of a computer board from a certain assembly line, has a normal distribution. The assembly times for a random sample of 20 boards are measured. The sample mean and sample standard deviation of observed times are: X &=35 minutes and s=2.2 minutes. a. Find a 90% confidence interval for the true average assembly time for a board. b. Find a 90% confidence interval for the true variance of assembly time F2. c. Find a 90% confidence interval for the true standard deviation of assembly time F.
The 90% confidence interval for the true average assembly time for a board is (34.19 minutes, 35.81 minutes).
What is average?
The ratio of a sum of the values in a given set to all the values in the set is the mean value, which is the definition of the average. The average formula has numerous practical uses. If we were asked to determine the average male height throughout India or the average age of the men and women in a group, we would add up all the data and divide it by the total number of data points. In mathematics, the central value of the a set of data is expressed as the average of a list of data.
A) The 90% confidence interval for the true average assembly time for a board is (34.19 minutes, 35.81 minutes).
B) The 90% confidence interval for the true variance of assembly time is (3.42 minutes, 7.06 minutes).
C) The 90% confidence interval for the true standard deviation of assembly time is (1.84 minutes, 2.65 minutes).
To learn more about average
https://brainly.com/question/24739297
#SPJ4
if a 50.0g object needs 1,145 joules to increase its temp by 10.0, what is the specific heat capacity
To find the specific heat capacity, we can use the formula Q = mcΔT, where Q is the amount of heat energy required, m is the mass of the object, c is the specific heat capacity, and ΔT is the change in temperature.
Given:
- Mass of the object (m) = 50.0g
- Amount of heat energy required (Q) = 1,145 joules
- Change in temperature (ΔT) = 10.0°C
Using the formula Q = mcΔT, we can rearrange it to solve for c:
c = Q / (mΔT)
Plugging in the given values, we get:
c = 1,145 J / (50.0 g x 10.0 °C)
c = 2.29 J/g°C
Therefore, the specific heat capacity of the object is 2.29 J/g°C.
To know more about Heat visit :
https://brainly.com/question/21041726
#SPJ11
A man of mass 100. kg feels a gravitational force, fm, from a woman of mass 50.0 kg sitting 1 m away. the gravitational force, fw, experienced by the woman will be _________ that experienced by the man.
The gravitational force experienced by the woman will be the same as that experienced by the man. This is because the gravitational force between two objects depends on both their masses, and is proportional to the product of their masses.
Therefore, the force experienced by each object will be the same, regardless of their individual masses.
The gravitational force, Fw, experienced by the woman will be equal to the gravitational force, Fm, experienced by the man.
This is because the gravitational force between two objects with masses (100 kg and 50 kg) follows Newton's Third Law, which states that for every action, there is an equal and opposite reaction. In this case, both the man and the woman experience the same gravitational force, just in opposite directions.
To know more about Gravitational click here .
brainly.com/question/3009841
#SPJ11
All of the following are bases except
answers:
A. NaOH
B. Al(OH)3
C. HBr
D. Ca(OH)2
Answer:
(C) HBr is an acid .......
What is the primary purpose of wires in a circuit
Answer:
Electrical wire is used for power distribution to transmit electricity from a transformer or other source to an outlet, appliance, device, cable, switch, distribution board, socket, and light fitting. They conduct electricity and provide a low-resistance path for electricity to flow through.
Explanation:
( hope this is correct )
9.Two people are pushing a broken down car. One pushes 2 m/s east, the other a
1.5 m/s east. Do they have the same or different velocity? why
Answer:
No, they don't have the same velocity
Explanation:
Given that one person pushes the car 2 m/s east, and the other pushes the car 1.5 m/s east.
As velocity is a vector quantity, so, to have equal velocity, both magnitude as well as the direction must be equal.
For the first person:
Magnitute of the velocity = 2 m/s.
The direction of the velocity: Towards east.
For the second person:
Magnitute of the velocity = 1.5 m/s.
The direction of the velocity: Towards east.
As both the person have the same direction but the different magnitude of the velocity, so, they don't have the same velocity.
Helppp. Please help! Need answer as soon as possible!
if a force of f = 350 n is applied to the handle of the toggle clamp, determine the resulting clamping force at a .
To determine the resulting clamping force at point A, we need to use the principle of moments.
which states that the sum of the moments about any point in a system must be equal to zero when the system is in equilibrium.
Let's take the moment about point A:
Sum of moments about A = 0
(-Fa)(30 mm) + (350 N)(150 mm) = 0
Solving for Fa, we get:
Fa = (350 N)(150 mm)/(30 mm) = 1750 N
Therefore, the resulting clamping force at point A is 1750 N.
To know more about clamping force :
https://brainly.com/question/14528932
#SPJ11
A 46 g particle is moving to the left at 12 m/s . How much net work must be done on the particle to cause it to move to the right at 46 m/s
To cause the 46 g particle to move to the right at 46 m/s, a net work must be done on the particle to change its velocity from 12 m/s to 46 m/s and its direction from left to right. The net work required to change the velocity and direction of the particle is 43.3352 J.
The kinetic energy of the particle when it is moving to the left at 12 m/s can be calculated using the formula:
K = (1/2)mv^2
where K is the kinetic energy, m is the mass of the particle, and v is its velocity. Plugging in the given values, we get:
K = (1/2) x 0.046 kg x (12 m/s)^2 = 3.3288 J
The kinetic energy of the particle when it is moving to the right at 46 m/s can also be calculated using the same formula:
K' = (1/2) x 0.046 kg x (46 m/s)^2 = 46.664 J
The change in kinetic energy is therefore:
ΔK = K' - K = 46.664 J - 3.3288 J = 43.3352 J
Thus, the net work required to change the velocity and direction of the particle is 43.3352 J. This work can be done by an external force acting on the particle over a certain distance.
for more such questions on velocity
https://brainly.com/question/80295
#SPJ11
________ is granular snow which is beginning to coalesce into glacial ice.
A) An esker B) Ablation C) A cirque D) A tarn E) Neve / Firn
please explain why the answer you selected is correct.
The correct answer is E
"Neve/Firn."
Neve/Firn is granular snow that compacts and recrystallizes over time to form glacial ice.
How does neve/firn form glacial ice?The correct answer is "Neve/Firn."
Neve or firn is the granular snow that accumulates over time and undergoes compaction and recrystallization.
As more snow accumulates on top, the underlying neve/firn becomes more compacted, and the air between the snow grains is forced out.
This process causes the neve/firn to become denser and transform into glacial ice.
An esker is a long, winding ridge of sediment that forms in a glacier's subglacial meltwater channels.Ablation refers to the melting of snow and ice from the surface of a glacier. A cirque is a bowl-shaped depression formed by glacial erosion. A tarn is a small mountain lake that forms in a cirque.Learn more about granular snow
brainly.com/question/31656091
#SPJ11
Name the spectrum of radiations that includes both microwaves and infrared radiation.
Answer:
light
Explanation:
Light is part of a spectrum of electromagnetic energy that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet "light", x rays, and gamma rays.
in general, one begins a design problem by gathering information. for this design, it will be helpful to gather information about the commonemitter amplifier with degeneration
Both in the Journal of the Audio and in the popular press, power amplifier design and distortion measurement.
Emitter degeneration: what is it?
The inclusion of a little resistor (R4) between the emitter and the common signal source is referred to as emitter degeneration. In this circuit, the transistor's base terminal serves as the input, the collector serves as the output, and the emitter is shared by the two. It is an output-inverted voltage amplifier.
Why is the common emitter used most often?
Since common emitter circuit arrangement offers both current and voltage gain, it produces a higher power gain than common base emitter configuration, which is the configuration used by the majority of amplifiers. Another factor to take into account is that its input resistance is greater and on par with load resistance.
To know more about amplifier visit:-
https://brainly.com/question/16795254
#SPJ4
what is the conclusion of a ballon car model
Newton's third rule of motion states that whenever air is forced backwards out of a balloon (out the end with the opening), there must be an equal and opposite reaction force pushing the balloon forward (out the end opposite the opening).
A balloon tends to fly around the room randomly when you just let it go on its own, making steering nearly impossible. On the other hand, you can use the balloon's energy to move the automobile forward if you attach it to a vehicle.
What is the ballon powered car model experiment?
Steps to Take
1. Poke a hole through the centre of the pop bottle lid with the hammer and nail.
2. Attach the ballon to the straw using masking tape. By blowing into the straw, check the balloon for any holes.
3. Connect the tongue depressor to the two short straw pieces. These will serve as the wheels' axles.
4. Using the skewers, fasten the four wheels. This could be a little difficult! To prevent the bottle cap from rubbing on the side of the tongue depressor, you might need to adjust it.
5. Use masking tape to secure the balloon and straw to the car's top.In order to have enough space to blow into the straw, make sure it is over the edge.
6. Blow into the balloon, grip the straw, then release. Observe how the automobile moves off!
Students build a car in this exercise that is propelled by the elastic energy of a balloon. In contrast to family automobile, which transforms chemical energy into kinetic energy, this vehicle transforms potential energy into kinetic energy.
When inflated with air, balloons, which are elastic, can store potential energy. The potential energy, sometimes referred to as kinetic energy, is transformed into the energy of motion when the air is released. When the car is moving forward, you can perceive this energy.
When you release the automobile, it will have more kinetic energy the more potential energy it has saved.
To learn more about ballon car model from the given link
https://brainly.com/question/13293570
#SPJ1
What are the products(what comes out of) photosynthesis
A. Carbon dioxide , water, sunlight
B. Glucose and carbon dioxide
C. Carbon dioxide water and light energy
D. Glucose and oxygen
Please answer this if you don’t know the answer don’t answer ( dont guess randomly) 11 points
Answer:
D
Explanation:
the 3 products of photosynthesis are glucose (sugar), oxygen and water. D just doesn't include water.
Answer:
It would be C
Explanation:
plants convert carbon dioxide from the air into oxygen.
PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1. _____ - a line connecting the North Pole to the South Pole.
Full Moon
Crescent
First Quarter
Axis
2. _____ - Moon phase in which less than half of the Moon appears to be illuminated.
First Quarter
Axis
Full Moon
Cressent
3. _____ - Moon phase in which exactly half of the Moon appears to be illuminated
Cressent
Full Moon
First Quarter
Axis
4. _____ - Moon phase in which all of the Moon appears to be illuminated.
Axis
Cressent
Full Moon
First Quarter
Answer:
D
D
C
C
Explanation: BRAINLIEST ME
If a vector C is defined to be the sum of these two vectors (i.e. C = A + B) which of the following are true about the magnitude of C? Choose all that apply.
Cmax = (1^2 + 10^2)^0.5
Cmin = 9
Cmax = 10
Cmin = 0
Cmin = (1^2 + 10^2)^0.5
Cmax = 11
Cmax = 11 and Cmin = 9
When two vectors are added, let's say a and b, their resultant, let's say c is given by
c = √(a² + b² + 2ab cosΦ)
where Φ is the angle between them.
Assuming in given question a = 10 and b =1
so resultant c = √(10² + 1² + 2×10×1× cosΦ)
for Cmax, cosΦ = 1, a and b are parallel
so Cmax = √(a² + b² + 2ab)
Cmax = a + b
Cmax = 10 + 1
Cmax = 11,
similarly for Cmin, cosΦ = -1, a and b are antiparallel
so Cmin = √(a² + b² - 2ab)
Cmin = a- b
Cmin = 10 - 1
Cmin = 9
Therefore, Cmax = 11 and Cmin = 9.
To know more about vector addition, click here:
https://brainly.com/question/23867486
#SPJ12
The spectral sequence (O, B, A, F, G, etc. type stars) sorts stars according to Group of answer choices radius core temperature luminosity surface temperature.
The spectral sequence sorts stars according to their surface temperature.
Based on the presence and strength of various absorption lines in their spectra, stars are categorised using the spectral sequence.
The O-type stars are the hottest and the M-type stars are the coolest, and the sequence is commonly represented by the letters O, B, A, F, G, K, and M.
A star's attributes, including its surface temperature, luminosity, and other details, can be learned from its spectral classification.
It does not, however, directly classify stars according to their luminosity, radius, or core temperature.
Instead, using various observational techniques and theoretical models based on the spectrum categorization, these characteristics can be inferred or calculated.
Thus, the spectral sequence primarily classifies stars according on their surface temperature.
For more details regarding spectral sequence, visit:
https://brainly.com/question/32255780
#SPJ6
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.
Learn more about probability density
brainly.com/question/31039386
#SPJ11
A plane lands and comes to a complete stop. If the plane covers 200 m and decelerates at 7.5 m/s2 , what was the planes initial velocity as it touched the runway?
Answer:
The initial velocity of the plane is 54.77 m/s
Explanation:
Given;
distance covered by the plane, d = 200 m
deceleration of the plane, a = - 7.5 m/s²
The initial velocity of the plane is given by the following kinematic equation;
v² = u² + 2ad
where;
v is the final velocity of the plane when the plane comes to a complete stop = 0
u is the initial velocity of the plane
0 = u² + 2(-7.5 x 200)
0 = u² - 3000
u² = 3000
u = √3000
u = 54.77 m/s
Therefore, the initial velocity of the plane is 54.77 m/s
A 50kg gymnast is bouncing on a trampoline. If she is going down at 5m/s when she lands on the trampoline, and it bouncesher up in the opposite direction at a velocity of 4m/s, whatis her change in momentum?
Answer:
450 kgm/s upward
Explanation:
From the question,
Change in monentum = mass× change in velocity
ΔM = mΔv....................... Equation 1
ΔM = m(v-u).................. Equation 2
Where ΔM = Change in momentum, m = mass of the gymnast, v = final velocity, u = initial velocity
Given: m = 50 kg, v = -4 m/s. u = 5 m/s
Substitute these values into equation 2
ΔM = 50(-4-5)
ΔM = 50(-9)
ΔM = -450 kgm/s
Hence the change in momentum of the gymnast is 450 kgm/s upward
Alika finds a certain kind of butterfly near her house. She reads that ultraviolet light is absorbed by the butterfly’s wings, red light is transmitted through the butterfly’s wings, and green light is reflected off the butterfly’s wings. Alika’s friend Claire tells her that if you shine light on the butterfly, its wings will glow.
Can light cause the butterfly’s wings to glow? Why or why not? Does it matter what type of light Alika shines on the butterfly?
Answer:
No the butterflies wings won't glow.
Explanation:
Butterflies have wings that have different color of attractiveness. Butterflies are however attracted to light but can't absorb the light.
A 2450 kg stunt airplane accelerates from 120 m/s to 162 m/s in 2.10s. If the airplane is putting out an average force of 5.8810x10^4 N during this time, what is the average friction force exerted on the airplane by the air?
Given :
A 2450 kg stunt airplane accelerates from 120 m/s to 162 m/s in 2.10 s.
If the airplane is putting out an average force of \(5.8810\times 10^4 \ N\).
To Find :
The average friction force exerted on the airplane by the air.
Solution :
Acceleration is given by :
\(a = \dfrac{162-120}{2.10}\ m/s^2\\\\a = 20 \ m/s^2\)
Now, force equation is given by :
\(F - F_{friction} = ma\\\\F_{friction} = F-ma\\\\F_{friction} = 58810 - (2450\times 20 )\\\\F_{friction} = 9810\ N\)
Therefore, frictional force exerted in the airplane by the air is 9810 N.
3.) using calories, calculate the how much heat 32.0 g of water absorbs when it is heated from 25.0oc to 80.0oc. how many joules is this?
The specific heat capacity of water is 1 calorie per gram per degree Celsius. This means that 1 gram of water will absorb 1 calorie of heat for every 1 degree Celsius increase in temperature.
In this case, we have 32.0 grams of water that is heated from 25.0 degrees Celsius to 80.0 degrees Celsius. The change in temperature is therefore 80.0 - 25.0 = 55.0 degrees Celsius.
The amount of heat absorbed by the water is therefore 32.0 x 55.0 = 1760 calories.
To convert calories to joules, we can use the following conversion factor:
1 calorie = 4.184 joules
Therefore, the amount of heat absorbed by the water in joules is 1760 x 4.184 = 7374 joules.
Therefore, the answer to your question is that 32.0 grams of water absorbs 7374 joules of heat when it is heated from 25.0 degrees Celsius to 80.0 degrees Celsius.
Learn more about specific heat capacity here:
https://brainly.com/question/28302909
#SPJ11