The complete statement is -
" You can see that an apple is red because the red wavelength is reflected off the apple and all other colors are absorbed ".
What is Absorption? What is Absorbance of light? What is Beer - Lamberts Law?Absorbance is defined as the logarithm of the ratio of incident to transmitted radiant power through a sample (excluding the effects on cell walls).The term absorption refers to the physical process of absorbing light, while absorbance does not always measure only absorption; it may measure attenuation (of transmitted radiant power) caused by absorption, as well as reflection, scattering, and other physical processesBeer - Lamberts Law states that if I{o} is the intensity of the light at the beginning of the travel and I{s} is the intensity of the light detected after travel of a distance {d}, the fraction transmitted {T} is given by -[tex]${\displaystyle T={\frac {I_{s}}{I_{0}}}=\exp(-\mu d)}[/tex]
Given is the statement as -
You can see that an apple is red because the red wavelength is ______________off the apple and all other colors are _________________".
The complete statement will be -
You can see that an apple is red because the red wavelength is reflected off the apple and all other colors are absorbed.
It is because eyes can perceive only the reflected rays {that enter our eyes} and not the absorbed rays.
Therefore, the complete statement is -
" You can see that an apple is red because the red wavelength is reflected off the apple and all other colors are absorbed ".
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A 60 Watt light bulb runs for 120 seconds. How much energy does it use?
Which one of the following statements best describes the just world hypothesis?
The statement that best describes the just world hypothesis is people deserve what happens to them, whether good or bad. The correct option is a.
What is a hypothesis?A hypothesis is a testable declaration about the relationship among two or more variables or a suggested explanation for some observed phenomenon in a scientific context.
A hypothesis is an assumption formed based on evidence. This is the first step in any investigation that converts research questions into predictions. It consists of variables, a population, and the relationship between the variables.
A hypothesis is a statement rather than a question. The scientific question in your project is not your hypothesis. The hypothesis is a well-informed, testable prediction of what will occur.
A scientific paper should begin with a clear statement of the hypothesis. This helps the reader understand the issue. People deserve what happens to them, whether good or bad, according to the statement that best describes the just world hypothesis.
Thus, the correct option is a.
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Your question seems incomplete, the missing options are:
a. People deserve what happens to them, whether good or bad.
b. If people act with integrity, they contribute to a just world.
c. The world is just, but some people don't think it is.
d. People who work hard are superior to those who are lazy. User: If you exhibit a high level of psychological hardiness, you're probably the type of person who
How long would it take for a ball dropped from the top of a 576-foot building to hit the ground? round your answer to two decimal places?
Jake uses a fire extinguisher to put out a small fire. When he squeezes the handle, the flame rettardant is released from the extinguisher with considerable force. As a result, Jake has to reinforce his grip on the extinguisher to hold it in place as it pushes back into his hands. The projectile in this scenario is the . The recoil in this scenario is the . The force on the flame rettardant is the force on the extinguisher. The mass of the flame rettardant is the mass of the extinguisher. The acceleration of the flame rettardant is the acceleration of the extinguisher.
The projectile in this scenario is the flame r.
The recoil in this scenario is the extinguisher.
The force on the flame r is equal to the force on the extinguisher.
The mass of the flame r is less than the mass of the extinguisher.
The acceleration of the flame r is greater than the acceleration of the extinguisher.
Answer:
The projectile in this scenario is the flame r.
The recoil in this scenario is the extinguisher.
The force on the flame r is equal to the force on the extinguisher.
The mass of the flame r is less than the mass of the extinguisher.
The acceleration of the flame r is greater than the acceleration of the extinguisher.
When a boat moves through the water, the waves in front of the boat bunch up, while the waves behind the boat spread out. this is an example of?
Answer: Doppler Effect
Doppler Effect can be described as the change in wavelength of a wave like upward shift in frequency for an object whom is approaching and an apparent downward shift in frequency for observers from whom the source is receding. This effect can be observed when a boat moves through the water then the waves in front bunch up while the waves behind the boat spread out.
Vivisection refers to the live dissection of animals or the use of live animals for experimental research. Please select the best answer from the choices provided T F
the answer to this question is true
Answer:
The given statement is true.
Vivisection derives from the Latin words "vivus" which means "alive" and "sectio" which means cutting.
Thus, it refers to the surgery or dissection of living organism conducted for the experimental purposes.
It not only helps in medical and biological research but also in education and training of the veterinarians and doctors.
During the Pleistocene, a land bridge connected Alaska and Asia. What could have caused this bridge to from? the ending of an ice age the beginning of an ice age the erosion of the Alaskan coastline the erosion of the Asian coastline
The correct answer is beginning of ice age.
During the time of ice age, the supply of water of locked in the ice of the glaciers.
The level of sea worldwide decreased and the land came out of the sea and joined the two continents.
The environment of the Bering bridge was very dried so it remained a dried and there were no glaciers during the whole ice age.
Which of the following measurements is used to measure the distance between astronomical bodies?
Speed of light
Speed of sound
Speed of spacecraft
Speed of rotation of Earth
Generally we use speed of light to measure the distance between two astronomical bodies
Because astronomical bodies are very far from each other
and we use light year as the unit of distance for large distances
1 light year is the distance covered by light in one year
so speed of light is correct option here
How is it possible you can feel heat from the sun?
there are three ways by which we can transfer heat from one place to other
1. Conduction
In this method of heat transfer heat can be transferred from one place to other without actual movement of medium molecules. This is possible in solid conducting mediums
2. Convection
Here heat energy is carried away along with the medium molecules where medium molecules can move from one place to other while heat is transferred. It is possible in liquid and gas but not possible in solids
3. Radiation
In this mode of heat transfer we do not require any medium and here heat transferred by electromagnetic waves
So we can feel heat from sun in form of electromagnetic waves and it is the fastest way to transfer the heat also it do not require any medium
Two devices with capacitances of 25 μf and 5.0 μf are each charged with separate 120 v power supplies. calculate the total energy stored in the two capacitors. your answer submit
Answer:
Total energy stored in both is 0.0018J
Explanation:
Formula to calculate the total energy stored between two capacitors = 1/2CV²
Energy stored the First Capacitor = 1/2 × 25× 10⁻⁶f × (120)²
Energy stored = 0.0015J
Energy stored in the second Capacitor = 1/2 × 5× 10⁻⁶f × (120)²
Energy stored = 0.0003J
Total Energy stored = Energy stored in capacitance 1 + Energy stored in Capacitor 2
= 0.0015J+ 0.0003J
= 0.0018J
alcohol use for can cause feel alcohol syndrome in the unborn fetus? true or false
Answer:
True
Explanation:
In an electron cloud an element that is farther away from the nucleus has
What should a sailboat operator do when approaching a PWC head-on
In accordance with the International Regulation for the prevention of collisions at sea:
1.- A sailing boat has a passing preference over a motorized boat, except when the motor boat is limited by its draft.
2.- The sailboat must maintain its course and speed.
3.- If it is evident that the PWC does not respond, the sailboat must sound the warning signal, and change its course to starboard.
4.- All actions must be taken as soon as possible.
5.- If a sailboat is using its engine, the situation changes, and in that case, both ships must alter to starboard.
When a sailboat operator approaches a PWC head-on, the operator should change course to starboard (right), while keeping the vessel at a safe speed and maintaining a proper observation to assess risk of collision.
Explanation:When a sailboat operator is approaching a PWC (Personal WaterCraft) head-on, the operator should follow rules regarding right of passage, which are set in place to minimize the risk of collision. These rules are part of the numerous international maritime navigation laws.
The primary method of avoiding collision is by steering to the right, or 'starboard', when it is safe to do so. The rule 'starboard to starboard' means that both vessels should deviate their course to starboard. This is akin to 'keep to your right' rule on the road.
However, before attempting any manoeuvre, it is crucial to maintain a safe speed and have a proper lookout for assessing risk of collision. One should use all available ways like sight, sound or radar to ascertain any risk.
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what is the gravitational potential energy relative to the ground of a 1.0-kg box at the top of a 50-m building ?
The gravitational potential energy relative to the ground of a 1.0-kg box at the top of a 50-m building is 490 Joule.
What is gravitational potential energy?The energy that an item has or acquires when its location changes as a result of being in a gravitational field is known as gravitational potential energy. Gravitational potential energy can be defined as an energy that has a connection to gravitational force or gravity.
Mass of the box = 1.0 kg.
Height of the box relative to the ground = 50 meter.
Acceleration due to gravity = 9.8 m/s²
Hence, the gravitational potential energy is = Mass of the box × Height of the box × Acceleration due to gravity
= 1.0 kg × 50 meter × 9.8 m/s².
= 490 Joule.
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What is the period of a wave if the wavelength is 100 m and the speed is 200 m/s?
(a) 200,000 s
(b) 2 s
(c) 0.5 s
(d) 100 s
How was Uranus different from most other planets
Lee pushes horizontally with a force of 75 n on a 36 kg mass for 10 m across a floor. calculate the amount of work lee did. answer in units of j.
The amount of work Lee did is 750 Joules.
Explanation:Work is calculated by multiplying the force exerted on an object by the distance it is moved. In this case, Lee exerts a horizontal force of 75 N on a 36 kg mass, moving it for a distance of 10 m. Therefore, the work done by Lee can be calculated as:
Work = Force × Distance
Work = 75 N × 10 m
Work = 750 J
So, the amount of work Lee did is 750 Joules.
If you have to apply 40n of force on a crowbar to lift a rock that weights 400n, what is the actual mechanical advantage of the crowbar
The actual mechanical advantage of the crowbar used to lift a 400N rock with a 40N effort is 10.
The actual mechanical advantage of a crowbar is calculated by dividing the load force by the effort force. In this case, if a 400N rock is lifted using a crowbar with an effort of 40N, the mechanic advantage is calculated as follows:
Actual Mechanical Advantage (AMA) = Load Force (N) / Effort Force (N)
AMA = 400N / 40N
AMA = 10
Therefore, the actual mechanical advantage of the crowbar is 10, which means that the force applied is multiplied by 10 times when lifting the rock.
When Jamie removes a woolen cap, his hair develops an excess of static charge Which of these BEST explains this phenomenon?
The voltage of electricity traveling away from a power plant is very high. How high may it be? Why is the voltage so high?
Which of the following could you do to increase the strength of an electromagnet? decrease the number of windings
decrease the electric current
change the core from wood to iron
all of the above
change the core from wood to iron
Everything we know about stars comes from studying their _____.
mass
color
temperature
radiation/light
age
Everything we know about stars comes from studying their radiation/light. By measuring the wavelength or frequency of light coming from objects in the universe, we can learn something about their nature. Starts emit a range of wavelengths. The frequency of light is directly related to its color, so it follows that stars have different colors because they have different peak wavelengths of light.
How do scientists detect the various electromagnetic waves coming from space?
The electromagnetic spectrum defines all the wavelengths of light. Scientist uses different kinds of telescopes sensitive to different wavelengths of the spectrum. Large infrared telescopes are used to view the core of our galaxy. Moreover, radio telescopes are used to map the structure of our galaxy while microwave telescopes captures the remnant glow of the Big Bang.
Why is it important to make healthy choices about your diet and exercise?
Final answer:
Regular exercise, combined with a healthy diet, offers a myriad of health benefits, from disease prevention to cognitive enhancement.
Explanation:
Regular physical exercise is essential in preventing various diseases such as cardiovascular disease, cancer, diabetes, and obesity. Muscle health and strength significantly improve with consistent exercise.
When combining exercise with a healthy diet, individuals are less likely to be obese and experience benefits such as improved cardiovascular health, lowered blood pressure, enhanced diabetes management, joint flexibility, and muscle strength.
Exercise not only influences physical health but also slows cognitive impairments associated with aging, showcasing the holistic benefits of staying physically active throughout life.
How much work can a 23,000 Watt car engine do in 35 seconds if it is 100% efficient?
A skier is gliding down a slope at a constant speed. what energy transformation is taking place?
When the skier is gliding down a slope at a constant speed the Potential energy is transformed into heat energy.
What will be the energy transformation of a skier sliding at constant speed?We know that energy can not be created nor be destroyed but only can transfer from one form to another.
A skier is gliding down a slope at a constant speed the gravitational potential energy due to height is converting into heat because of the frictional force.
Since the skier is making a constant speed so the Potential energy will not convert into kinetic energy.
So due to the friction between the ice and the skier the energy converts in the form of heat and dissipated to the ice
Thus when the skier is gliding down a slope at a constant speed the Potential energy is transformed into heat energy.
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What causes the curved path of a projectile??
The curved path of a projectile, known as its trajectory, is primarily due to the influence of gravity, along with other factors such as air resistance and the rotation of the Earth.
Gravity: The dominant force acting on a projectile is gravity, which pulls the object downward toward the center of the Earth. As a projectile moves forward, gravity pulls it down, causing it to follow a curved path rather than a straight line. The motion creates a parabolic trajectory when air resistance is negligible.
Initial Velocity and Launch Angle: When a projectile is launched, it has an initial velocity and is given a specific angle with respect to the horizontal. These factors contribute to how high and how far the projectile will travel.
Air Resistance: In real-world scenarios, air resistance also plays a significant role in shaping the projectile's path. This force opposes the motion of the projectile and causes deviations from the ideal parabolic path. The effect of air resistance can be complex and often results in a more flattened trajectory.
What is the gravitational potential energy of a 65.7 kg person standing on the roof of a 135 meter building?
The gravitational potential energy of a 65.7 kg person standing on the roof of a 135 meter building is 86,752.17 Joules, calculated using the formula PEg = mgh.
The gravitational potential energy (PEg) of a person or object is calculated using the formula PEg = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m/s² on Earth), and h is the height above a reference point in meters.
In the case of a 65.7 kg person standing on the roof of a 135 meter building, the gravitational potential energy can be calculated as follows:
PEg = mgh = (65.7 kg) (9.8 m/s²) (135 m) = 86,752.17 Joules
Hence, the person has a gravitational potential energy of 86,752.17 J when standing on the roof of the building.
If a substance is in the gas phase, which of qualities of the gas will stay constant?
volume
mass
shape
position of particles
Answer:
Mass is the right answer
Explanation:
Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between particles, which have a lot of kinetic energy. The particles move very fast and collide into one another, causing them to diffuse, or spread out, until they are evenly distributed throughout the volume of the container.
Therefore the only constant property about matter in a gas state is its mass!
The density of silver is 10.5 g cm3. a piece of silver with a mass of 61.3 g would ovvupy a volume of ?
The volume of a piece of silver with a mass of 61.3g and a given density of 10.5 g/cm³ would be approximately 5.83 cm³.
Explanation:The subject is about density which is the ratio of the mass of a sample of the substance to its volume. The SI unit for density is the kilogram per cubic meter (kg/m³) or for many situations, the grams per cubic centimeter (g/cm³) for solids and liquids, and grams per liter (g/L) for gases.
Given the density (D) of silver as 10.5 g/cm³ and the mass (m) as 61.3 g, we can use the formula Density = mass/volume or rearranged to Volume = Mass/Density. After inserting the given values into the equation, we get that the Volume (V) would be approximately 5.83 cm³.
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