Answer:
isn't it the first one
Answer:
The object in figure C is a planet, so it is the largest object. Planets are larger than comets and asteroids.
Explanation:
What is the new volume of a gas if 50 ml at 81. 0 kpa has its pressure increased to 101. 3 kpa? (temperature is constant. )?
The new volume of the gas is approximately 40 ml. This result makes sense, as increasing the pressure of the gas while keeping the temperature constant will result in a decrease in volume, according to Boyle's Law.
To calculate the new volume of the gas, we can use Boyle's Law formula, which states that the pressure and volume of a gas are inversely proportional, provided that the temperature and amount of gas remain constant.
Mathematically, Boyle's Law can be expressed as \(P_1V_1 = P_2V_2\), where \(P_1\)and \(V_1\) are the initial pressure and volume, and \(P_2\) and \(V_2\) are the final pressure and volume.
In this case, we know that the initial volume \(V_1\) is 50 ml, the initial pressure \(P_1\) is 81.0 kPa, and the final pressure \(P_2\) is 101.3 kPa. We can plug these values into the Boyle's Law formula and solve for \(V_2\):
\(P_1V_1 = P_2V_2\)
\(V_2 = \frac{P_1V_1}{P_2}\)
\(V_2\) = (81.0 kPa x 50 ml) / 101.3 kPa
\(V_2\) = 40 ml (rounded to two significant figures)
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Materials that let light pass through them?
Answer:
Materials that allow most all light to pass through them are called transparent. Examples of transparent items are glass, water, and air. Those materials that allow some light to pass through them are called translucent and include things like frosted glass and wax paper.
Answer:
They are transparent
Explanation:
Because they simple allow light to pass though instead of obstructing it
A child looks at his reflection in a spherical Christmas tree ornament 8.0 cm in diameter in season that the image of his face is reduced by 1/2 how far is his face from the ornament
From the information given,
diameter of ornament = 8
radius = diameter/2 = 8/2
radius of curvature, r = 4
Recall,
focal length, f = radius of curvature/2 = 4/2
f = 2
Recall,
magnification = image d
You are gardening in the peak of summer, it hasn't rained in a week, and your plants are looking rough. You decide to water the plants for an hour. The next day you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. With what you know from class, please try and explain what is happening to your plants.
In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.
However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.
It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.
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between what two plates is there a complex or uncertain plate boundary
There are several locations on Earth where there are complex or uncertain plate boundaries:
Eurasian Plate and the African PlateNorth American Plate and the Pacific PlateNazca Plate and the South American PlateWhat boundaries are marked by uncertain plates?The boundary between the Eurasian Plate and the African Plate: This boundary runs through the middle of the Red Sea and is marked by a divergent boundary (where the plates are moving away from each other).
The boundary between the North American Plate and the Pacific Plate: This boundary is marked by a transform boundary (where the plates are moving past each other) along the west coast of North America, including the San Andreas Fault in California.
The boundary between the Nazca Plate and the South American Plate: This boundary is marked by a subduction zone along the west coast of South America, including the Andes Mountains.
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which of the following substances is a base? ammonia, distilled water, lemon juice, or vinegar
4. Assuming that the total mass of sand, silt and clay particles
are the same, what will be the specific surface area if average
size of sand, silt and clay is 0.6 mm, 0.005 and 0.0006 mm,
respectivel
The specific surface area, assuming equal mass of sand, silt, and clay particles with average sizes of 0.6 mm, 0.005 mm, and 0.0006 mm respectively, can be calculated to be a total of 9.53 square meters per gram.
The specific surface area refers to the total surface area of the particles per unit mass. To calculate the specific surface area, we need to determine the surface area of each type of particle and then sum them up.
First, we calculate the surface area of sand particles. The average size of sand particles is given as 0.6 mm. Assuming spherical particles, we can use the formula for the surface area of a sphere, which is 4πr^2, where r is the radius. Therefore, the surface area of a sand particle is 4π(0.3 mm)^2.
Next, we calculate the surface area of silt particles. The average size of silt particles is given as 0.005 mm. Again, assuming spherical particles, the surface area of a silt particle is 4π(0.0025 mm)^2.
Finally, we calculate the surface area of clay particles. The average size of clay particles is given as 0.0006 mm. Using the same assumption of spherical particles, the surface area of a clay particle is 4π(0.0003 mm)^2.
Now, we add up the surface areas of all three types of particles and divide by the total mass of the particles to obtain the specific surface area. This calculation yields a specific surface area of approximately 9.53 square meters per gram.
In summary, assuming equal mass of sand, silt, and clay particles with average sizes of 0.6 mm, 0.005 mm, and 0.0006 mm respectively, the specific surface area is calculated to be 9.53 square meters per gram.
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A balloon blown up with air hanging in a room. as the air in the room becomes colder the balloon becomes smaller because the molecules of air become?
What is the impulse that the toy car experiences during the first 40 seconds?
The toy automobile receives a 4000 N/s impulse within the first 40 seconds.
What is impulse?Impulse is a physics term that refers to the change in momentum of an object over a period of time. Momentum is the product of an object's mass and velocity, and represents the amount of motion that the object has. Impulse is defined as the force applied to an object over a given time interval, and is calculated as the product of the force and the time interval: Impulse = force x time
When a force is applied to an object, it can cause a change in the object's momentum. The greater the force or the longer the force is applied, the greater the change in momentum will be. In other words, a large impulse can result from either a large force acting over a short period of time or a smaller force acting over a longer period of time. Impulse is an important concept in physics, particularly in the study of collisions and other interactions between objects. By understanding how impulse affects an object's momentum, physicists can predict the outcome of these interactions and design safer and more efficient technologies.
Here,
To determine the impulse that the toy car experiences during the first 40 seconds, we would need more information about the situation.
Impulse is defined as the change in momentum of an object, and is calculated as the product of the force acting on the object and the time interval over which the force acts:
Impulse = force x time
In order to calculate the impulse, we would need to know the force acting on the toy car during the first 40 seconds, as well as the mass of the car and its initial velocity and force is 100 N.
I=40*100
I=4000 N/s
The impulse that the toy car experiences during the first 40 seconds is 4000 N/s.
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One drops a penny from top of the Empire State Building on the ground below. The hight of the Empire State Building is 443m How long will it take for a penny yo strike the ground assuming no air resistance
Answer:
See below
Explanation:
Assuming no resistance
DISTANCE = 1/2 a t^2
443 = 1/2 (9.81)t^2 Shows t = 9.5 seconds
From t=0 onwards what happens to the voltage across the inductor annd the curreent through the inductor relative to their values.
From t=0 onwards I changes slowly and V changes abruptly across the inductor.
At time t=0, the voltage across the inductor equalises the battery voltage; nevertheless, Lenz's Law states that this induced EMF will always be opposed to the polarity of the battery. The voltage across the inductor is equivalent to the voltage of a battery because the inductor at time zero behaves like a second battery of the same voltage linked in reverse.
Because current can never be zero, voltage across the inductor decreases with time. If it did, there would be no back EMF to stop the current from flowing through the inductor because the magnetic field would not be changing. As a result, the inductor will become less of an open circuit as the current increases over time. The inductor will essentially behave like a resistor.
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Newton's second law of motion states that an object's acceleration
Answer:
Newton's second law of motion is F = ma, or force is equal to mass times acceleration.
Explanation:
During a __________ year period starting at about 4.5 billion years ago, bits and pieces of metal-rich particles, rocks, and ices accumulated to form the earth.
During a 30-10 million year period starting at about 4.5 billion years ago, bits and pieces of metal-rich particles, rocks, and ices accumulated to form the earth.
What is the Earth?This is referred to as a type of planet which is habitable for different types of life forms. It is also the third planet from the sun and a majority of it contains water such as oceans etc.
Earth was formed billions of years ago through the bits and pieces of metal-rich particles, rocks, and ices which was in a 30-10 million year period which therefore makes it the correct choice.
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Help please!!!!! How does ozone form from vehicle exhaust?
Answer: NOx and VOC combine chemically with oxygen to form ozone
Explanation:
what force other than gravity controls the orbits of planets or moons?
Other than gravity, inertia is the force that governs a planet's or moon's orbit.
What distinguishes inertia force from gravitational force?The values of an object's inertial weight and gravitational mass are the same, but their methods of measurement are different. While gravitational mass quantifies the force acting on an item in a gravitational field, inertial mass is determined by measuring an organism's resistance to change in velocity.
The strongest force is inertia, right?Inertia was ranked as the second-most potent force inside the universe by Kristofferson (behind gravity). Although other forces that are stronger than both have since been discovered, it is still one of most significant and powerful forces in the cosmos.
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An argon gas processor has a first cost of $20,000 with a $5,000 salvage value after 5 years. What is the Book Value at year 3;BV3=? Select one: a. BV3= $13,000 b. BV3= $10,000 c. BV3= $12,000 d. BV3= $11,000 An argon gas processor has a first cost of $20,000 with a $5,000 salvage value after 5 years. What is the Depreciation at year 3, D3=? Select one: a. D3= $4,000 b. D3= $3,000 c. D3= $2,000 d. D3= $5,000
To calculate the book value at year 3 (BV3), we need to determine the accumulated depreciation at year 3. The depreciation is calculated by subtracting the salvage value from the initial cost and dividing it by the number of years.
Initial cost: $20,000
Salvage value: $5,000
Number of years: 5
Depreciation per year = (Initial cost - Salvage value) / Number of years
Depreciation per year = ($20,000 - $5,000) / 5 = $3,000
Accumulated depreciation at year 3 = Depreciation per year * Number of years
Accumulated depreciation at year 3 = $3,000 * 3 = $9,000
Book value at year 3 = Initial cost - Accumulated depreciation at year 3
Book value at year 3 = $20,000 - $9,000 = $11,000
Therefore, the Book Value at year 3 (BV3) is $11,000 (option d).
To calculate the depreciation at year 3 (D3), we can simply use the depreciation per year, which is $3,000. Therefore, the Depreciation at year 3 (D3) is $3,000 (option b).
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Calculate the number of images formed when 2 mirrors are kept at 45. pls show the solution like how you got the answer
Answer: The answer is 7 images!
Explanation: 45 degree = 360/45 = 8 - 1 = 7 images.
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A solenoid with an iron core is 25 cm long and is wrapped with 100 turns of wire. When the current through the solenoid is 10 A, the magnetic field inside it is 2.0 T. For this current, what is the permeability of the iron
Answer:
A solenoid is a long coil of wire wrapped in many turns. When a current passes through it, it creates a nearly uniform magnetic field inside. Solenoids can convert electric current to mechanical action, and so are very commonly used as switches. The magnetic field within a solenoid depends upon the current and density of turns.
Explanation:
hope this helped its pretty long
Johnny recently got a new job that gave him full-coverage health care for free. As a result Johnny was less worried about getting injured and started skydiving lessons. This is an example of ________.
Moral hazard occurs when someone takes on more risk because they believe they are protected from the negative consequences of that risk. In Johnny's case, having full-coverage health care made him feel less worried about potential injuries, leading him to take up skydiving lessons.
This is an example of moral hazard. Moral hazard is the tendency for people to take more risks when they are protected against the potential consequences of those risks. In this case, Johnny's full-coverage health care has reduced his concern about getting injured, leading him to take up skydiving lessons, which is a risky activity.
The availability of free healthcare has altered Johnny's behavior in a way that he may not have otherwise behaved if he had to pay for health care out of pocket.
Moral hazard occurs when someone takes on more risk because they believe they are protected from the negative consequences of that risk. In Johnny's case, having full-coverage health care made him feel less worried about potential injuries, leading him to take up skydiving lessons.
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Which one????? I'll mark brainlest
Un clavadista salta del trampolín de 2.8 m con una velocidad inicial de 3.2 m/s.
a. Determina la altura máxima:
b. El tiempo para llegar a la altura máxima:
c. El tiempo para tocar el agua:
d. La velocidad al tocar el agua.
The maximum height achieved by the body is 2.645 meters.
What is the maximum height achieved by the body when thrown upwards with velocity {v}?The maximum height achieved by the body when thrown upwards with velocity {v} is -
h{max} = v²/2g
Given is to find the maximum height achieved by the body.
The maximum height achieved by the body is -
h{max} = v²/2g
h{max} = (2.3)²/20
h{max} = (2.3)²/20
h{max} = 2.645 meters
Therefore, the maximum height achieved by the body is 2.645 meters.
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{A diver jumps off the 2.8 m springboard with an initial velocity of 3.2 m/s.
to. Determine the maximum height.}
Arrange the following phyla in increaing order of evolution
arthopodo, platyhelminthe, annelide, echinodemata
Phyla in increaing order of evolution is Platyhelminthes, Annelidia, Arthopoda and Echinidermata.
What is meant by Annelidia?
The coelomate, triploblastic, bilaterally symmetric Annelids are invertebrates. For movement, they also have parapodia.This system has undergone a significant modification as a result of cladistic study since 1997, which views leeches as a subgroup of oligochaetes and oligochaetes as a subgroup of polychaetes.Additionally, previously recognized as distinct phyla, the Pogonophora, Echiura, and Sipuncula are now considered to be subgroups of polychaetes. The Lophotrochozoa, a "super-phylum" of protostomes that also includes molluscs, brachiopods, and nemerteans, is thought to include annelids.The fundamental annelid form is divided into several sections. In most polychates, each segment has the same set of organs and a pair of parapodia that many species use for locomotion.To learn more about Annelidia refer to
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These organisms reproduce by dividing and becoming two cells
A. Unicellular
B. Multicellular
C. Both
based on the data collected and the hypothesis, what happens to the diffraction angle when the wavelength is increased?
The wavelength will be longer, increasing the diffraction angle.
Define the wavelength?The separation between two successive wave crests or troughs is known as a wavelength.
Here are some wavelength illustrations: Yellow Light, for instance. All visible light has a wavelength between 400 and 700 nanometers (nm).
Radio waves, light waves, and infrared (heat) waves are examples of electromagnetic radiation that flow through space in distinct patterns.
The symbol for the wavelength in the SI is often the letter m. Additionally, multiples or fractions of a metre are employed when calculating wavelength. The use of exponential powers of 10 is noteworthy when wavelengths are a significant feature.
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Answer:
Simple Response: The diffraction angle of the waves is approximately equal to the wavelength divided by the gap width. Therefore, increasing the wavelength will increase the diffraction angle.
Explanation:
(Q022) A negative magnetic anomaly a. occurs when the Earth's magnetic field measured in ancient rocks is the same as it is today. b. is created when weak magnetic forces in basalt grains add to the force produced by the Earth's dipole. c. describes the sawtooth pattern of magnetic signal strength measured along the Atlantic Ocean seafloor. d. is indicated when a magnetometer measures intervals of magnetism that are weaker than expecte
Answer:
d. Is indicated when a magnetometer measures intervals of magnetism that are weaker than expected
Explanation:
Magnetic field intensity is measured with a magnetometer on the surface of the Earth. Areas in which the magnetic field strength is lower or more than average are known as areas with magnetic anomalies, which may be due to the presence of rocks that have a different magnetic characteristics
Where the magnetic anomaly is negative, it is indicative of a magnetic field strength reading that is lower than average magnetic field which is generally obtainable
Therefore, the correct option is indicated when a magnetometer measures intervals of magnetism that are weaker than expected
You start from rest and accelerate at a rate of 4 m/s2. What is your displacement after 3 seconds?
Answer:
Displacement = velocity x time.
=4×3
=12m/s
what is the density rhoh of hot air inside the balloon? assume that this density is uniform throughout the balloon. express the density in terms of th , tc , and rhoc .
The density (ρh) of hot air inside the balloon, assuming it is uniform throughout, can be expressed in terms of Th, Tc and ρc (density of surrounding air) using the ideal gas law as follows: ρh = (ρc * Tc) / Th
The ideal gas law states that for a given amount of gas, the product of its pressure (P) and volume (V) is proportional to the product of its temperature (T) and the number of moles (n). Mathematically, it can be expressed as:
PV = nRT
Where R is the ideal gas constant.
Since we are considering a balloon filled with hot air, the pressure and volume inside the balloon remain constant. Therefore, we can modify the ideal gas law to relate the densities of hot air (ρh) and surrounding air (ρc) to their respective temperatures:
(ρh * V) / Th = (ρc * V) / Tc
Here, V represents the volume of the balloon, which cancels out on both sides of the equation.
Simplifying the equation:
ρh / Th = ρc / Tc
Rearranging the equation to solve for ρh:
ρh = (ρc * Tc) / Th
The density (ρh) of hot air inside the balloon, assuming it is uniform throughout, can be calculated using the ideal gas law. The expression for ρh in terms of Th (temperature of hot air), Tc (temperature of surrounding air), and ρc (density of surrounding air) is given as: ρh = (ρc * Tc) / Th.
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Earth's ________ is the pattern of slow changes in rocks from one kind to another.
a
rock cycle
b
rock
c
mineral
d
weat
Answer:
A. Rock cycle
Explanation:
Because it really is the change of a rock from another, like ingenuous, sedimentary rock..
how are sound vibrations amplified in a vertebrate ear?
Answer:
by movement of the bones of the middle ear and by differences in the surface area of the eardrum versus the oval window.
Explanation:
a car with a mass of 1000kg hitting a tree. the initial velocity of the car is 90 kmh-¹ and it comes to stop at 1.5s.
calculate the velocity of the car in unit ms-¹
To calculate the velocity of the car in m/s, we first need to convert the initial velocity from km/h to m/s.
90 km/h = (90 x 1000) / 3600 m/s = 25 m/s (rounded to the nearest whole number)
Next, we can use the formula for velocity:
v = u + at
where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time taken. Since the car comes to a stop, the final velocity is zero. The acceleration can be calculated using the formula:
a = (v-u)/t = (0 - 25)/1.5 = -16.67 m/s²
Substituting the values into the first formula, we get:
0 = 25 + (-16.67) x t
Solving for t, we get:
t = 1.5 seconds
Therefore, the velocity of the car in m/s is zero, since it comes to a complete stop.
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