let's say you see a comet's nebulous (meaning `cloudy-looking') tail stretching across the sky, and it's several million kilometers long. how big is the solid object that has developed this tail, and what's it made of?
Answers
The solid object that created the comet's nebulous tail is likely the nucleus of the comet, which is typically made of ice, dust, and rocky material.
What is comet?Comet is a web application development technique that enables web applications to send and receive data from a server asynchronously without the need for a browser page refresh. It creates an interactive user experience by enabling a continuous connection between the client and server so that data can be exchanged in both directions. This type of communication is also known as a bi-directional, full-duplex connection. Comet is an umbrella term for several techniques for achieving this kind of communication.
The nucleus of a comet can range in size from a few hundred meters to tens of kilometers, though their average size is typically around 5 kilometers. As the comet approaches the Sun, its frozen material turns to gas, which is pushed away from the Sun by the solar wind and forms the nebulous tail that stretches millions of kilometers across the sky.
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Related Questions
How quickly will increases in the monetary base translate into new bank loans and thus larger increases in m1 and m2?
Answers
Increases in the monetary base can lead to new bank loans and larger increases in M1 and M2, but the speed at which this occurs can vary.
Here is a step-by-step explanation of the process:
1. The monetary base refers to the total amount of currency in circulation, including physical currency and reserves held by banks at the central bank.
2. When the central bank increases the monetary base by buying government bonds or other assets, it injects money into the economy.
3. Banks are required to hold a certain percentage of their deposits as reserves. The increase in the monetary base increases the amount of reserves available to banks.
4. With more reserves, banks have the ability to lend out more money. This can lead to an expansion of credit and the creation of new bank loans.
5. As banks make new loans, the money supply in the economy increases, leading to larger increases in M1 and M2.
6. M1 refers to the narrowest definition of the money supply, which includes currency in circulation, demand deposits, and traveler's checks. M2 is a broader measure that includes M1 plus savings deposits, time deposits, and money market funds.
7. The speed at which increases in the monetary base translate into new bank loans and larger increases in M1 and M2 depends on various factors such as the demand for loans, lending standards, and the overall economic environment.
8. In times of economic downturn or tight credit conditions, banks may be more cautious in extending loans, which can slow down the transmission of the increase in the monetary base to the broader money supply.
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A duck is 12 m from the edge of a pond. A student stands in the middle of the pond
and creates ripples that travel past the duck and towards the edge of the pond. The
ripples are produced uniformly at 2 ripples per second. The student determines that
the ripples take 3.0 seconds after they pass the duck to reach the edge of the pond.
Determine the wavelength of the ripples.
Answers
Answer:
The wavelength is 2 meters
Explanation:
The relationship between the frequency, the speed and the wavelength is given by the relation;
v = f × λ
The given parameters are;
The distance of the duck from the edge of the pond = 12 m
The number of ripples produced per second = Frequency, f = 2 Hz
The time it takes the ripple to reach the edge of the pond after travelling past the duck = 3 seconds
Therefore, speed of the wave, v = Distance/time = 12 m/(3 s) = 4 m/s
The wavelength, λ, is therefore;
λ = v/f = (4 m/s)/(2 Hz) = 2 meters.
Whoever answers asap gets marked Brainliest! A hockey puck with a mass of 0.12 kg is traveling across the ice at a velocity of 150 m/s downfield. What is the momentum of the hockey puck?
P = 18 N
P = 18 kg * m/s
P = 8 * 10 - 4 kg * m/s
M = 18 kg * m/s
Answers
Answer:
Explanation:
Momentum = m * v = .12 * 150 = 18 kg m/s
a sealed cubical container 20.1 cm on a side contains two times avogadro's number of molecules at a temperature of 20.3°c. find the force exerted by the gas on one of the walls of the container.
Answers
Gas presses against one of the container's walls with a force of 3.83 x 106 Newtons.
The ideal gas law, can be used to determine the force the gas applied to one of the container's walls.
\(20.1 cm = 0.201 m\)
Hence, the container's volume is:
\(V = (0.201 m)^3 = 0.008124 m^3\)
Using Avogadro's number, which is 6.022 x 1023 particles per mole:
\(n = 2 * Avogadro's\ number\ is\ 2 * 6.022 * 1023\ particles,\ or\ 1.2044 * 1024\ particles.\)
The ideal gas law can now be applied:
PV = nRT
We can determine the pressure:
P = nRT/V
The temperature must first be converted from Celsius to Kelvin:
T = 20.3°C + 273.15 = 293.45 K
R stands for 8.314 J/(mol*K), the gas constant.
Changing the values:
\(P = (1.2044 * 10^24) * (8.314) * (293.45) / (0.008124) (0.008124)\\P = 9.53 * 10^7 Pa\)
\(F = PA = (3.83 * 106 N) = (9.53 * 107 Pa) * (0.201 m)2.\)
As a result, the gas presses against one of the container's walls with a force of 3.83 x 106 Newtons.
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You stand on a scale that rests on the floor of an elevator that is accelerating upward. what is the relationship between the force due to gravity (mg) and the normal force (n) exerted by the scale?
Answers
The relationship between the force due to gravity (mg) and the normal force (n) exerted by the scale
due to upward accelaration.
N = mg + ma , here N MEANS normal force
here now, N > mg realtionship between normal force and force
whilst an item sits on a surface, the floor exerts a force on that object. This force is called the normal pressure, ordinary method "perpendicular" no longer "regular". The everyday force is always perpendicular to the floor.The everyday force is equal to the load of the item (for this class) = mg .The regular force is the "same and opposite response pressure" to the items weight. It continues the object from falling thru the floorForce is measured in Newtons. NTo know more about normal force visit : https://brainly.com/question/18799790
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which of the following does not describe a way in which machines function? by enhancing range of motion and speed of movement so that resistance can be moved farther or faster than an applied force by balancing multiple forces by altering the resulting direction of an applied force by enhancing force in an attempt to increase total force needed to overcome a resistance
Answers
The method by which machines increase range of motion and speed of movement so that resistance can be moved farther or more quickly than an applied force is not described in the following.
Which of the following best describes the gravitational attraction of the earth on an object: biomechanics force levers?The earth pulls your body downward, which is known as gravity. The location where your body's mass is concentrated is known as your center of gravity. A hypothetical location where the force of gravity seems to act is the center of gravity (COG) of an organism.
Which of the following claims regarding friction force is false?No relative motion exists between the two contact surfaces in a rolling motion. Therefore, in a rolling motion, the friction does not do any work. Because of this, rolling friction is lower than sliding or kinetic friction.
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Prove that acceleration=v/time
Answers
Answer:
Explanation:
Main Answer:
The equation acceleration = v/time can be proven using the fundamental definitions of acceleration, velocity, and time. Acceleration is defined as the rate of change of velocity, and velocity is the rate of change of displacement with respect to time. Let's consider an object moving with an initial velocity v0 and final velocity v in a time interval t.
Explanation:
The change in velocity, Δv, can be calculated as the final velocity minus the initial velocity, Δv = v - v0. Similarly, the change in time, Δt, is the final time minus the initial time, Δt = t - t0.
By substituting these values into the equation for acceleration, we have:
acceleration = Δv/Δt
Now, substituting Δv = v - v0 and Δt = t - t0, we get:
acceleration = (v - v0)/(t - t0)
Since v0 and t0 represent the initial velocity and time, respectively, we can rewrite the equation as:
acceleration = (v - v0)/t
By rearranging the equation, we find:
acceleration = v/t
Thus, we have proved that acceleration is equal to v/time.
Internal Link:
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During take off, a plane leaves the ground and
travels in a straight line until it reaches a
height of 10 km. The distance the plane flies
during take off should be in the range 57 km
to 62 km.
What is the smallest possible angle that the
path of the plane could make with the ground?
Give your answer in degrees to 1 d.p.
Not drawn accurately
Answers
Explanation:
please mark as brainliest answer
The smallest possible angle that the path of the plane could make with the ground is 18.9 degrees.
We are given that the plane travels a distance of 57 km to 62 km during take off, and that it reaches a height of 10 km. We want to find the smallest possible angle that the path of the plane could make with the ground.
The smallest possible angle will occur when the plane travels the maximum distance of 62 km..
To calculate the angle, we can use the following formula:
sin(theta) = opposite / hypotenuse
sin(theta) = 10 / 62
theta = sin⁻¹(10/62) = 18.9 degrees
As a result, the least conceivable angle that the plane's path might create with the ground is 18.9 degrees.
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Imagine that you have an isotropic magnetized plasma with T ∥0
=T ⊥0
=T 0
. Double the magnetic field slowly compared to a gyroperiod, but fast compared to the energy transfer time between T ∥
and T ⊥
. What are the new values of T ∥
and T ⊥
(call them T ∥1
and T ⊥1
) ? Now let the plasma sit long enough for T ∥1
and T ⊥1
to mix by collisions and come to an isotropic temperature T 1
, but not long enough for the plasma to exchange energy with the outside world. What is T 1
? Reduce the magnetic field back down to its original value slowly compared to a gyroperiod, but fast compared to the energy transfer time between T ∥
and T ⊥
. What are T ∥2
and T ⊥2
? And after the plasma becomes isotropic, what is T 2
? This process is called 'magnetic pumping'.
Answers
The new values of T∥1 and T⊥1 will be equal to the original isotropic temperature T0.
When the magnetic field is doubled slowly compared to a gyroperiod but fast compared to the energy transfer time between T∥ and T⊥, the plasma remains magnetized, but the magnetic field becomes stronger. Since the energy transfer time between T∥ and T⊥ is much longer than the timescale of magnetic field doubling, the temperature anisotropy is not affected during this process. Therefore, T∥1 and T⊥1 remain equal to T0.
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sheila uses a 45N force on her bowling ball across a 15M lane. what work did she do on the bowling ball? show your work.
Answers
Answer:
Work=force × distance
=45×15
=675
Explanation:
need thanks and make me brainiest if it helps you
a certain christmas tree ornament is a silver sphere having a diameter of 8.50 cm. determine an object location for which the size of the reflected image is three-fourths the object's size. use a principle-ray diagram to arrive at a description of the image.
Answers
The diameter of the object is approximately is 11.33 cm.
To determine the object location for which the size of the reflected image is three-fourths the object's size, we can use the concept of spherical mirrors and the mirror equation.
The mirror equation is given by:
1/f = 1/do + 1/di
Where:
f is the focal length of the mirror
do is the object distance (distance of the object from the mirror)
di is the image distance (distance of the image from the mirror)
In this case, the mirror is a spherical mirror, and since the size of the reflected image is specified, we can use the magnification equation:
m = -di/do
Where:
m is the magnification
di and do have the same sign when the image is upright and opposite signs when the image is inverted
Let's solve for the object distance (do) when the magnification (m) is three-fourths (3/4) and the diameter of the object (which is the same as the diameter of the image) is 8.50 cm.
We know that the diameter of the image (Di) is related to the diameter of the object (Do) by the equation:
Di = m * Do
Given that Di = 8.50 cm and m = 3/4, we can substitute these values to find the diameter of the object:
8.50 cm = (3/4) * Do
Now, let's solve for Do:
Do = (8.50 cm) / (3/4)
Do = (8.50 cm) * (4/3)
Do ≈ 11.33 cm
So, the diameter of the object is approximately 11.33 cm.
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Which process transfers heat from the ground to the air touching it?
A: Conduction
B: Convection
C: Evaporation
D: Radiation
Answers
Answer:
its b
Explanation:
i did this question in a test before and i got it right
4 major functions of the skeletal system
Answers
The functions of the skeletal system are support, movement, production of cells and protection.
The bones, muscles, ligaments, and tendons make up a skeletal system in the human body. It serves as body's support system to enable correct movement and bodily function. The skeleton gives the entire body structural support, allowing us to sit, stand, and move freely. In addition, fragile organs the brain, heart, and lungs are safeguarded by the bones of the skull, ribs, and spinal column.
Additionally, the skeletal system makes blood cells and stores minerals. The production of these cells, and platelets all essential for immune system and blood clotting take place in the bone marrow, which is found inside numerous bones. In addition, our ability to move and engage in activities like running, jumping, and dancing is made possible by our bones working in tandem with our muscles and joints.
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There is a bell at the top of a tower with a mass of 20kg. If it had 8829 J of gravitational potential energy, estimate how many floors the tower has.
Answers
Answer:
10 floors
Explanation:
We are told that a bell of mass 20 kg is atop a tower and has 8829 J of gravitational energy. The question asks us to estimate the number of floors the tower has.
To do this, we must first calculate how high above the ground the bell is. We can do that using the formula for gravitational potential energy:
\(\boxed{g.p.e = mgh}\),
where:
• g.p.e = gravitational potential energy (8829 J)
• m = mass of object (20 kg)
• g = acceleration due to gravity (approximately 10 m/s²)
• h = height of object above ground (? m).
Using the above information and formula, we can solve for h:
g.p.e = \(20 \times 10 \times h = 8829\)
⇒ \(200 h = 8829\)
⇒ \(h = \frac{8829}{200}\)
⇒ \(h = \bf 44.145 \ m\)
Therefore the bell is 44.145 m above the ground, which means that the height of the tower is also 44.145 m.
One floor of a building can be estimated to be around 4.3 m, therefore the number of floors the tower has is:
44.145 ÷ 4.3
≈ 10
Therefore there are 10 floors in the tower.
Uppoe that a phone i dropped from a light pole 70. 0 meter high. How far will the phone have fallen after 3. 00 econd
Answers
The formula for horizontal distance is x = Vx * t, where t is the time. The formula for vertical distance from the ground is y = h + Vy * t - g * t2 / 2, where g is the acceleration of gravity.
What is the free fall equation?
Where g is the acceleration of gravity, vf is equal to g * t. On Earth, the value of g is 9.8 m/s/s. The velocity of the object after being dropped from rest for any given period of time can be calculated using the aforementioned equation.
How is height determined?
At the spot where the ruler, book, or other flat object meets your head, lightly mark the wall with a pencil. Measure the distance from the floor to the mark on the wall using a tape measure, preferably one made of metal that will stay straight.
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Write a brief explanation of convection using the terms expansion, density, and gravity.
Answers
Answer:
Expansion- the action of becoming larger or more extensive. Density-he degree of compactness of a substance. Gravity-Sturdy with triple wall structure, these gravity convection ovens carry accurate temperature uniformity as well as air distribution similar to many forced air ovens. Units are well suited for a diversity of drying, baking as well as curing applications
Explanation:
Answer:
EXPANSION :- The expansion of the universe is the increase in distance between any two given gravitationally unbound parts of the observale universe with time.
DENISTY :- Mass of a unit volume of a material substance.
GRAVITY :- Is also called the gravitational force, the universal force of attraction acting between all matter.
A 55.0kg bicyclist (including the bicycle) is pedaling to the right, generating a 180N force. She is experiencing a 60.0N drag. Neglect any friction impeding her motion.
Answers
In this scenario, the bicyclist is exerting a force of 180 N to the right, while experiencing a drag force of 60 N opposing her motion. To determine the net force acting on the bicyclist, we subtract the drag force from the applied force.
Net force = Applied force - Drag force
Net force = 180 N - 60 N
Net force = 120 N
The net force is 120 N to the right. According to Newton's second law (F = ma), the net force is related to the acceleration of the object. Since the mass of the bicyclist is given as 55.0 kg, we can calculate the acceleration using the formula:
Net force = mass x acceleration
120 N = 55.0 kg x acceleration
Solving for acceleration:
acceleration = 120 N / 55.0 kg
acceleration ≈ 2.18 m/s²
Therefore, the bicyclist is experiencing an acceleration of approximately 2.18 m/s² to the right.
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9. A speedboat engine exerts 90000 W of power in moving the boat through the water. The velocity of the boat is 1P = 5 m/s. What force does the engine apply to do this?
P = F x V
Answers
Answer:
it g hope it helps you out
Which of the following is NOT used to classify soils? Depth, Texture, Color,
Structure
Answers
Answer: Depth does not classify soils. Soil color and other properties including texture, structure, and consistence are used to distinguish and identify soil layers.
Happy to help! (0.<)
Explanation:
The depth parameter is does not used to classify the soil in different region. Texture, color and structure are used to characterize the soil type.
What is soil classification?The method of classifying soil involves dividing it into groups where the behaviors of the soils within each group are the same under a certain set of physical conditions.
Engineers can use soil classification to comprehend and evaluate a particular soil's performance and determine whether the soil is suitable for particular engineering applications.
The classification of soli include based on grain size textural classification, AASHTO classification system, Unified soil classification system. AASHTO classification system is developed by Bureau of Public Roads for the classification of soil for the highway subgrade use.
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A ball of 0.5kg slows down from 5m/s to 3m/s. Calculate the work done in the process
Answers
Explanation:
m = 0.5kg
V = 3m/s - 5m/s = -2m/s
P = W/t = Fv
F = ma
W = Fvt
W = (0.5)(9.8)t = 4.9t
PLS HELP I NEED THIS BY TONIGHT PLS
Answers
Answer:
GET GOOD
Explanation:
1) A 2.0 kg steel block is placed on a steel table as shown below. Force F is applied to the block to the right.
a) Determine the normal force acting on the block.
Answers
Answer:
if g=-10m/s² then the normal force is 20N
if g=-9.8m/s² then the normal force is 19.6N
Explanation:
The force due to gravity (or weight) is mass times the acceleration due to gravity.
I am going to define up as positive so gravity will be negative.
On earth the acceleration due to gravity is -9.8m/s²
We sometimes round this to -10m/s² to make the math easier.
I will do it both ways.
so we have a mass of 2kg
2kg(-10m/s²)
so the force due to gravity is -20N
because the block is not falling through the table, the table must be pushing back with the same amount of force, but in the opposite direction so we change the sign.
using -10m/s² for g, we get a normal force of 20N (Newtons)
if we use -9.8m/s², we have 2kg(-9.8m/s²)
and a force due to gravity of -19.6N
and when we flip the sign we get a normal force of 19.6N
Hope this helps!
A truck is driving north at 35 miles per hour and passes a car going south at 40 miles per hour. What is the speed of the car from the truck driver’s frame of reference?
Answers
Answer:
70
Explanation:
right...
Answer:
120
………………..........................................
what principle is responsible for light spreading as it passes through a narrow slit? a) refraction b) polarization c) diffraction d) dispersion
Answers
The principle responsible for light spreading as it passes through a narrow slit is diffraction hence correct choice is c) diffraction.
The act of bending light around corners such that it spreads out and illuminates regions where a shadow is anticipated is known as diffraction of light. In general, since both occur simultaneously, it is challenging to distinguish between diffraction and interference.
Diffraction occurs when a wave, such as light, encounters an obstacle or a slit and bends around it, causing the wave to spread out. In the case of light passing through a narrow slit, this spreading results in an interference pattern that can be observed on a screen placed behind the slit.
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George rides his bike to his friend’s house that is 5 kilometers from his house. If he rides his bike at an average speed of 15 km/h, how long will it take him to get to his friend’s house?
Answers
Answer:
The answer is 0.33 H!
Explanation:
Find the position vector of a particle that has the given acceleration and the specified initial velocity and position. Then o your own using a computer, graph the path of the particle. a(t)=12ti+sin(t)j+cos(2t)k,v(0)=i,r(0)=j
Answers
The position vector of the particle is r(t) = (4t^3/3 - cos(t) + C1)i + (-cos(t) + C2)j + (sin(2t)/2 + C3)k.
To find the position vector of a particle given its acceleration, initial velocity, and initial position, we integrate the acceleration function twice.
In the given problem, the acceleration function is a(t) = 12ti + sin(t)j + cos(2t)k. Integrating with respect to time, we obtain the velocity function v(t) = 6t^2i - cos(t)j + sin(2t)/2k, where C1 is the constant of integration.
Integrating the velocity function with respect to time once again, we get the position function r(t) = (2t^3 - cos(t) + C1)i - sin(t)j + sin(2t)/2 + C2k, where C2 is the constant of integration.
Given the initial velocity v(0) = i, we can find the constant C1 by substituting t = 0 into the velocity function. Therefore, C1 = 0.
Given the initial position r(0) = j, we can find the constant C2 by substituting t = 0 into the position function. Therefore, C2 = 0.
Thus, the position vector of the particle is r(t) = (4t^3/3 - cos(t))i - cos(t)j + sin(2t)/2k.
To graph the path of the particle, we can use a computer to plot the position vector as a function of time. By varying the time, we can visualize the trajectory of the particle in three-dimensional space.
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A vehicle travels a distance of 300km. It took the vehicle 6 hours to make the trip.
What is the speed of the vehicle?
Answers
Answer:
50 kmph
Explanation:
300 / 6 = 50
Write out the correct chemical formula for magnesium phosphide.
Answers
Answer: Magnesium is mgp32
Explanation:
Answer: Mg3P2 is the correct chemical formula.
A resistor, an inductor, and a capacitor are connected in series to an ac source. What is the phase angle between the voltages of the inductor and capacitor in this rlc circuit?.
Answers
If a resistor, an inductor and a capacitor are connected in series, the phase angle between the voltages of the inductor and capacitor in a RLC series circuit is 180 degrees.
A resistor , capacitor and inductor are key components of a RLC circuit. Resistor doesn't store energy but capacitor and inductor stores energy and that is the reason resistor is called a passive element and inductor and capacitors are called active element.
Inductor leads the current by a phase angle of 90 degrees and the voltage across the capacitor lags the current by 90 degrees, so the phase difference between the voltages of the inductor and the capacitor is 180 degrees in an RLC circuit.
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How could a homework machine help students all around the world?
Answers
Answer:
Hello There!!
Explanation:
The machine can help you alot and do all your homework while you rest and let the homework machine do it and get good grades because of it with no worries but if the machine does it then you won't learn how to do them.
hope this helps,have a great day!!
~Pinky~