Two parallel circular bases and a curving surface define a cylinder. The height of the cylinder is equal to the angle between the two bases.
What do you meant by uniform cylinde?A cylinder is a three-dimensional solid figure with two identical circular bases connected at a specific distance from the center, which determines the cylinder's height, by a curving surface. Examples of cylinders in real life are toilet paper rolls and beverage cans.
Geometrically speaking, a cylinder is a three-dimensional shape. A cylinder is circular and has a top and bottom with a circled shape. Both the top and bottom are flat and identical in size.
One of the most fundamental curvilinear geometric shapes is the cylinder (from the Greek letter o, romanized as kulindros, meaning "roller" or "tumbler"). It is referred to as a prism with a circle as its base in elementary geometry.
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A nickel atom has an atomic number of 28 and an atomic mass of 59. What
is the structure of this atom?
A. It has a central nucleus composed of 28 protons and 31 neutrons,
surrounded by an electron cloud containing 28 electrons.
B. It has a central nucleus composed of 28 protons and 28 neutrons,
surrounded by an electron cloud containing 31 electrons.
C. It has a central nucleus composed of 31 protons and 28 neutrons,
surrounded by an electron cloud containing 28 electrons.
D. It has a central nucleus composed of 28 protons and 59 neutrons,
surrounded by an electron cloud containing 28 electrons.
A nickel atom has an atomic number of 28 and an atomic mass of 59. It has a central nucleus composed of 28 protons and 31 neutrons, surrounded by an electron cloud containing 28 electrons.
What is an atom?The atom consists of matter that may be split without releasing electrical charges.
It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.
In the nucleus, proton and the neutron is existing. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.
A nickel atom has an atomic number of 28 and an atomic mass of 59. In the nucleus, proton and the neutron is existing,the atom is the fundamental part of the particle.
In that, condition, It has a central nucleus composed of 28 protons and 31 neutrons, surrounded by an electron cloud containing 28 electrons.
Hence, option A is correct.
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Un ladrillo de 2kg que se encuentra a 200º c, se sumerge en 5 kg de agua a 32º¿a que temperatura se alcanza el equilibrio térmico?
Answer:
El equilibrio térmico se alcanzará a los 152ºC.
Explanation:
Dado que un ladrillo de 2kg que se encuentra a 200º c, se sumerge en 5 kg de agua a 32º, para determinar a qué temperatura se alcanza el equilibrio térmico se debe realizar el siguiente cálculo:
2+5 = 7
(200 x 5 + 32 x 2) / 7 = X
1064 / 7 = X
152 = X
Por lo tanto, el equilibrio térmico se alcanzará a los 152ºC.
A wave has a wavelength of 3 m and a frequency of 340 Hz. How far will the wave go in 20 s?
1. Which of the following best describes social
dances?
Answer:
this are dances formed mainly in communities.
Explanation:
they are done naming of children,worshipping or during initiation ceremonies
Question:
A car travels the same distance at constant speed around two curves, one with twice the radius of curvature of the other. For which of these curves is the change of the velocity of the car greater? Explain.
Turning of the Road:
When the car turns or travels along a circular curve, then it experiences a centripetal force. Therefore the square of the speed is directly proportional to the radius of the turn.
When a car travels around two curves, one with twice the radius of curvature of the other, the change of velocity of the car is greater in the curve with the smaller radius of curvature. This is because the square of the speed is directly proportional to the radius of the turn, and the centripetal force required to keep the car moving in a circle is greater in the curve with the smaller radius of curvature.
As the radius of the circle decreases, the centripetal force required to keep the car moving in a circle increases. Since the car is traveling the same distance at a constant speed around both curves, the velocity must change in the curve with the smaller radius of curvature in order to maintain the necessary centripetal force.
Therefore, the change of velocity of the car is greater in the curve with the smaller radius of curvature.
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write example of equilibrium?
Answer:
chemists say that equilibrium lies to the right as written, favoring the formation of products. An example is the reaction between H2 and Cl2 to produce HCl, which has an equilibrium constant of 1.6×1033 at 300 K
I suppose this is right?
Explanation:
Static electricity can produce electrostatic discharge sufficient to detonate an explosive. Identify a source of static electricity.
One source of static electricity is friction between two objects, especially if they are insulators, causing the transfer of electrons.
Static electricity is a stationary electric charge that is built up on the surface of a material. The static charge remains until it is discharged or neutralized by a conductor.Static electricity is an extremely high voltage that can be produced by rubbing objects together and then suddenly separated. The air between the objects becomes an insulator, so the charge cannot flow and builds up until the voltage is so high that it will jump to a nearby conductor.Static electricity can be a significant danger in areas where flammable gases or vapors are present. One source of static electricity is friction between two objects, especially if they are insulators, causing the transfer of electrons. Another common source of static electricity is lightning.
The buildup of static electricity can produce a high voltage that can cause an explosion or ignite flammable materials. It is important to be aware of potential sources of static electricity and take appropriate measures to prevent accidents.
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Two carts, moving at opposite directions, collide and recoil. Which question would help determine if the system of two carts is open or closed? A) Do the carts have the same mass? B) Do the carts have different initial velocities? ) Is energy transferred from one cart to the other? D) Is the total momentum constant before and after the collision?
Answer:D
Explanation:
i’m not sure if that’s right but that’s what i think
Which grouping describes only the living part of an ecosystem?
A. environment
B .niche
C. community
D. habitat
types of vertical mirrors
A curved mirror is a mirror with a curved reflecting surface. The surface may be either convex (bulging outward) or concave (recessed inward). Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices. The most common non-spherical type are parabolic reflectors, found in optical devices such as reflecting telescopes that need to image distant objects, since spherical mirror systems, like spherical lenses, suffer from spherical aberration. Distorting mirrors are used for entertainment. They have convex and concave regions that produce deliberately distorted images. They also provide highly magnified or highly diminished (smaller) images when the object is placed at certain distances.
If you have a cube that is 2x2x2 and weighs 5.29 g. How do you find the density?
Answer:
0.66
Explanation:
Follow the Density Formul d = m/v
so
d = 5.29/8
= 0.66 Density
Just correct me if I'm wrong, I mean like literally :> Thank you! ^^
It has been suggested, and not facetiously, that life might have originated on Mars and been carried to Earth when a meteor hit Mars and blasted pieces of rock (perhaps containing primitive life) free of the surface. Astronomers know that many Martian rocks have come to Earth this way. One objection to this idea is that microbes would have to undergo an enormous, lethal acceleration during the impact. Let us investigate how large such an acceleration might be. To escape Mars, rock fragments would have to reach its escape velocity of 5.0 km/s, and this would most likely happen over a distance of about 4.0m during the impact.
1) What would be the acceleration, in m/s, of such a rock fragment?
2) What would be the acceleration, in g's, of such a rock fragment?
3) How long would this acceleration last?
4) In tests, scientists have found that over 40% of Bacillius subtilis bacteria survived after an acceleration of 450000g. In light of your answer to part A, can we rule out the hypothesis that life might have been blasted from Mars to Earth?
Answer and Explanation:
Given that
v_f = 5 km/s = 5,000 m/s
d = 4 m
v_i = 0 m/s
The computation is shown below:
1. The acceleration in m/s is
Here we use the motio third equation which is
\(v_f^2 = v_i^2 + 2ad\)
5000^2 = 0^2 + 2 (a) (4)
So
\(a = 3.125 \times 10^{6} m/s^2\)
2. Now acceleration in g is
\(= \frac{3.125 \times 10^{6} m/s^2}{9.81}\)
\(= 3.18 \times 10^{5}g\)
3. The long of acceleration last is
\(t = \frac{v-u}{a}\)
\(= \frac{5000 - 0}{3.125 \times 10^{6}}\)
\(= 1.6 \times 10^{-3}s\)
4.As we can see that
\(3.18 \times 10^{5}\) is smaller than the \(4.5 \times 10^{5}g\)
So, it should not be ruled out
The brightness of identical bulbs varies depending on whether or not they are connected in series or parallel.(Figure 3) Rank in order, from brightest to dimmest, the identical bulbs A, B, and C. If two bulbs have the same brightness, place one on top of the other.
The correct option is (E) A is the brightest, and B and C have equal brightness but less than A.
What is electric circuit?
A full conducting path for an electric current is known as an electric circuit. When a battery is plugged into the circuit, electrons go from the battery's negative terminal through one or more electrical devices before returning to the battery's positive terminal. Circuits can be wired in a variety of ways, and these wiring methods can be defined using commonly understood and used language or symbols.The amount of electrons that pass through the circuit per second determines how much current flows through it. When working with batteries, raising the voltage likewise raises the circuit's current. When the brightness of the bulb rises, an increase in current is seen. Any series bulb that is unscrewed creates an open circuit with no current flowing through it.Learn more about the Circuits with the help of the given link:
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I understand that the question you are looking for is "In the circuit shown in the figure, all the lightbulbs are identical. Which of the following is the correct ranking of the brightness of the bulbs?
(A) A and B have equal brightness, and C is the dimmest.
(B) All three bulbs have the same brightness.
(C) B and C have equal brightness, and A is the dimmest.
(D) A is brightest, C is dimmest, and B is in between.
(E) A is the brightest, and B and C have equal brightness but less than A."
marble roller coaster lab report
A lab report on a scientific experiment in which students construct a roller coaster lab report for a tiny marble is called a "Marble Roller Coaster."
The experiment's goal is to comprehend physics concepts like potential and kinetic energy, friction, and gravity. The goal of the lab report, materials utilised, steps taken, data gathered, and findings achieved are often covered in parts of the report. A lab report on a scientific experiment in which students construct a roller coaster for a tiny marble is called a "Marble Roller Coaster." The discussion of the findings, in which the students analyse the information and make inferences about the experiment, is also included in the report. The study could potentially include suggestions for enhancing the roller coaster's design in the future.
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what is marble roller coaster lab report?
Calculate the cardiac output if your heart rate is 90 bpm and diostolic volume is 120 ml and in systolic volume is 30 ml.
The cardiac output is 180ml/min.
What is Stroke volume(SV)?
Stroke volume is the volume of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction.SV = End diastolic volume (EDV) - End systolic volume (ESV)
SV = 120ml - 30ml
SV = 90ml
What is Cardiac Output?
Cardiac output (CO) is the blood volume the heart pumps through the systemic circulation over a period measured in litres per minute.CO = Stroke volume(SV) x Heart rate (HR)
CO = 90ml x 90bpm
CO = 180ml/min
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Two parallel conducting plates are separated by 12.0 cm, and one of them is taken to be at zero volts. (a) What is the electric field strength between them, if the potential 5.7 cm from the zero volt plate is 450 V
The electric field strength between two parallel conducting plates separated by 12 cm and with one of them taken to be at zero volts is 337.5 N/C. Here's how to calculate it.Step-by-step explanation:We know that,Electric field (E) = potential difference (V) / distance (d)In this case, the distance between the two plates is d = 12 cm = 0.12 m
Let's first find the potential difference between the two plates. We are given that the potential at a distance of 5.7 cm (0.057 m) from the zero volt plate is 450 V. Since the plates are parallel, the potential difference between them will be proportional to the distance from the zero volt plate. Thus, at a distance of 0.12 m, the potential difference will be:V = (0.12 / 0.057) x 450 V ≈ 942.11 VNow we can find the electric field strength between the plates:E = V / d = 942.11 V / 0.12 m ≈ 7850.83 N/CHowever, this electric field is not uniform between the plates.
To find the electric field strength at a distance of 5.7 cm from the zero volt plate, we need to use the following formula:V = Edwhere d is the distance from the zero volt plate. Rearranging, we get:E = V / d = 450 V / 0.057 m = 7894.74 N/CThis is the electric field strength at a distance of 5.7 cm from the zero volt plate. The main answer is 7894.74 N/C, but the question asks for the electric field strength between the plates. Since this electric field is not uniform, we cannot use this value. Instead, we use the value we calculated earlier, which is 7850.83 N/C (rounded to three significant figures).
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A monochromatic light ray that has been traveling through water (n = 1.33) enters air. After the ray enters the air, which of the following correctly describes the relative change in the speed, frequency. and wavelength of the ray? its speed and wavelength both decrease; its frequency increases. O its speed and wavelength both decrease; its frequency stays the same. O its speed and wavelength both increase; its frequency decreases. O its speed stays the same, its wavelength increases, and its frequency decreases. its speed and wavelength both increase; its frequency stays the same.
A colored light ray enters the air after passing through water (n = 1.33). The relative change in the ray's speed, frequency, and wavelength once it enters air is accurately described by the fact that both its speed and wavelength increase. Here option C is the correct answer.
When a light ray passes from one medium to another, such as from water to air, its speed, frequency, and wavelength change. The extent of this change depends on the refractive indices of the two media.
In this case, the refractive index of water is 1.33 and that of air is 1.00. When the monochromatic light ray enters air from water, its speed changes because the speed of light in air is greater than its speed in water. Since the speed of light in a medium is inversely proportional to its refractive index, the light ray's speed increases as it enters air. Therefore, option C, which says that its speed and wavelength both increase and its frequency decreases, is the correct answer.
The frequency of the light wave, which is the number of oscillations per second, remains the same because the frequency of the light wave is determined by the source that produced it and is independent of the medium through which it travels.
The wavelength of the light wave changes because the speed of light is different in the two media. Since the frequency of the wave is constant, the wavelength must change to ensure that the speed of the wave matches the speed of the medium through which it is traveling.
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Complete question:
A monochromatic light ray that has been traveling through water (n = 1.33) enters the air. After the ray enters the air, which of the following correctly describes the relative change in the speed and frequency? and wavelength of the ray?
A - its speed and wavelength both decrease; its frequency increases.
B - its speed and wavelength both decrease; its frequency stays the same.
C - its speed and wavelength both increase; its frequency decreases.
D - its speed stays the same, its wavelength increases, and its frequency decreases. its speed and wavelength both increase; its frequency stays the same.
a boy sitting on a seat of a ferris wheel moves in a vertical circle at a constant speed. what is the magnitude of the centripetal force of the boy at the bottom of the circle? fn is the magnitude of the normal force that the seat exerts on the rider and m is the mass of the ride
The magnitude of the normal force that the seat exerts on the rider and m is the mass of the ride is Fc = m * ac.
The centripetal acceleration can be calculated as: ac = v^2 / r, where v is the speed of the boy, and r is the radius of the circle. Since the boy moves at a constant speed in a vertical circle, the magnitude of the centripetal force is constant at all points in the circle, including at the bottom.
Therefore, the magnitude of the centripetal force of the boy at the bottom of the circle is Fc = m * v^2 / r where v is the constant speed of the boy, and r is the radius of the circular path.
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1. Rearrange the equation for the area of a rectangle (A = l w) to solve for length, l.
Step 1
Step 2
Step 3
Step 4
2. Rearrange the equation for velocity v = d/t to solve for time, t.
Step 1
Step 2
Step 3
Step 4
Your friend says goodbye to you and walks off at an angle of 35° north of east.
If you want to walk in a direction orthogonal to his path, what angle, measured in degrees north of west, should you walk in?
The angle you should walk in, measured in degrees north of west, is: 90° - 35° = 55° north of west. This means that you should start walking in the direction that is 55° to the left of due north (i.e., towards the northwest).
To understand the direction that you should walk in, it is helpful to visualize your friend's path and your desired orthogonal direction. If your friend is walking at an angle of 35° north of east, this means that his path is diagonal, going in the northeast direction.
To walk in a direction that is orthogonal to your friend's path, you need to go in a direction that is perpendicular to this diagonal line. This means you need to go in a direction that is neither north nor east, but instead, in a direction that is a combination of both. The direction that is orthogonal to your friend's path is towards the northwest.
To determine the angle in degrees north of west that you should walk, you can start by visualizing north and west as perpendicular lines that meet at a right angle. Then, you can subtract the angle your friend is walking, which is 35° north of east, from 90°.
This gives you 55° north of west, which is the angle you should walk in to go in a direction that is orthogonal to your friend's path.
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Which of these scenarios describes circular motion?
es )
A)
The moon orbiting the Earth
B)
A cannonball flying from a cannon
C)
A car moving along a straight track
D)
The pendulum of a grandfather clock
A)
The moon orbiting the Earth
Light and dark color rock with coarse texture.
Which statement describes how this rock was likely formed?
slow cooling of magma beneath the surface of Earth
rapid cooling of magma beneath the surface of Earth
slow cooling of lava on the surface of Earth
rapid cooling of lava on the surface of Earth
Slow cooling of magma beneath the surface of Earth
How does rocks with light and dark color rock with coarse texture form?Rocks with light and dark color and coarse texture can form in a variety of ways, depending on the specific type of rock. However, one common way that this type of rock can form is through a process called igneous rock formation.
Igneous rocks are formed when molten rock (magma) cools and solidifies. The type of igneous rock that forms depends on the composition of the magma and the rate at which it cools. When magma cools slowly beneath the Earth's surface, it can crystallize and form large, coarse-grained igneous rocks called plutonic or intrusive rocks.
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A long narrow solenoid has length l and a total of N turns, each of which has cross-sectional area A. Its inductance is:
A long narrow solenoid has length l and a total of N turns, each of which has cross-sectional area A. Its inductance is μ₀ ( \(\frac{N^2A}{l}\) ).
To find the answer, we need to know about the magnetic field due to a solenoid.
What is the magnetic field due to a solenoid?A solenoid is an insulated wire wound in the form of a helix. Its length is very large compared to its diameter.The magnetic field due to solenoid carrying current \(I\) can be written as,\(B=\) μ₀n \(I\)
\(n=\frac{N}{l}\)
We have an expression for magnetic flux as,Φ \(= BA\) Where, A is the area.
Substituting above value of magnetic field in the expression of magnetic flux, we get,Ф \(= \frac{NIA}{l}\) μ₀
In terms of inductance, we can express the magnetic flux linked with the coil as,Ф \(= LI\)
By equating above two equations of magnetic flux, we get the expression for inductance as,μ₀ ( \(\frac{N^2A}{l}\) ) \(I\) \(=LI\)
\(L=\) μ₀ ( \(\frac{N^2A}{l}\) ).
Thus, we can conclude that the expression for inductance is μ₀ ( \(\frac{N^2A}{l}\) ).
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The inductance of a solenoid having N number of turns, area A and a length l will be equal to μ₀ ( \(\frac{N^2A}{l}\)).
We need to understand the magnetic field created by a solenoid in order to determine the solution.
What does a solenoid's magnetic field look like?An insulated wire twisted into a helix is what makes up a solenoid.Compared to its diameter, its length is significantly larger.It is possible to express the magnetic field caused by a solenoid carrying current as,\(B=\frac{NI}{l}\)×μ₀
We can express magnetic flux as follows:\(flux=BA\) , A is the area.
In the formula for magnetic flux, we obtain by substituting the above magnetic field value:\(flux=\frac{NIA}{l}\) times the μ₀.
The magnetic flux associated with the coil can be expressed in terms of inductance as follows:\(flux=IL\)
We obtain the expression for inductance as, by combining the aforementioned two magnetic flux equations.μ₀ ( \(\frac{N^2AI}{l}\))= \(LI\)
\(L=\) μ₀ ( \(\frac{N^2A}{l}\)).
As a result, we can say that the inductance expression is \(L=\) μ₀ ( \(\frac{N^2A}{l}\)).
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SIL. TUILE I JUMU
Write down your own examples for each of the different effects of forces.
Answer:
magnetic force
Explanation:
when some one gets charged up by maybe static eletricity the person will sustain the energy and the energy will make a force field around the person which can and will attract paper and he will be attractive
Explanation:
Examples for effect of force - example
1) Can change the state of an object(rest to motion/ motion to rest):For example, pushing a heavy stone in order to move it. 2) May change the speed of an object if it is already moving. ... 3) May change the direction of motion of an object
What happens to gravitational potential energy as a rollercoaster moves down a hill? Question 4 options: It is converted to elastic potential energy It increases It is converted to kinetic energy It remains constant.
The gravitational potential energy as a rollercoaster converts to kinetic energy when it moves downhill.
What is kinetic energy?
The kinetic energy of an object or body is due to its motion. When the roller coaster moves downhill it accelerates, thus the gravitational potential energy as a rollercoaster converts to kinetic energy.
The gravitational potential energy of an object or body is due to its position above the ground.
Therefore, the gravitational potential energy as a rollercoaster converts to kinetic energy when it moves downhill.
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An electric lamp is marked 240v, 60w
It is left to operate for 1h. How much
heat is generated by the lamp
Answer:
H = 0.06 kWh
Explanation:
Given that,
Power of an electric lamp, P = 60 W
Voltage, V = 240 V
It is operated for 1 hour
We need to find the heat generated by the lamp. Heat generated is given by :
\(H=P\times t\\\\H=60\ W\times 1\ h\\\\H=60\ Wh\\\\H=0.06\ kWh\)
So, 0.06 kWh of the heat is generated by the lamp.
Which of the following describes the correct order of energy conversions necessary to form electricity from solar panels?
Solar Heat Kinetic → Electric
Solar- Kinetic Heat → Electric
Solar 1 Heat → Electric
O Solar ->Electric
Answer:
hydrochlorine +12÷B to the power of 4 -× y reapeated zminus 2 to the power of 9
a car rounds a curve at a steady 50 km/h. if it rounds the same curve at a steady 70 km/h, will its acceleration be any different? explain.
Answer:
Acceleration would be \(1.96\) times the initial value.
Explanation:
The vehicle is in a centripetal motion as it rounds the circular curve. Acceleration of the vehicle during the motion would be:
\(\displaystyle a = \frac{v^{2}}{r}\),
Where:
\(v\) is the speed of the vehicle, and\(r\) is the radius of the curve.In this question, \(r\) stays the same since the vehicle is rounding the same curve. Acceleration of the vehicle would be proportional to the square of velocity.
The new velocity of the vehicle is \((70 / 50)\) times the original one. Hence, the new acceleration would be \((70 / 50)^{2} = 1.96\) times the original value.
A 0.187 A current flows through a wire. How much time will it take for 2.00 C of charge to flow past a point in the wire?
A. 10.7 s
B. 2.18 s
C. 0.374 s
D. 0.0935 s
The time taken for the given charge to flow past a point in the wire is 10.7s
Hence, option A)10.7s is the correct answer.
What is Current?Current is simply the rate of flow of charged particles i.e electrons caused by EMF or voltage.
If a charge passes through the cross-section of a conductor in a given time, the current I is expressed as;
I = Q/t
Where Q is the charge and t is time elapsed.
Given that;
Current I = 0.187ACharge Q = 2.00CTime elapsed t = ?I = Q/t
0.187A = 2.00C / t
t = 2.00C / 0.187A
t = 10.7s
The time taken for the given charge to flow past a point in the wire is 10.7s
Hence, option A)10.7s is the correct answer.
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par 1/2
In a volcanic eruption, 3.8 km of mountain
with a density of 1739 kg/m” was lifted an
average height of 403 m.
The acceleration of gravity is 9.81 m/s2.
How much energy was released in this eruption?
Answer in units of J.
part 2/2
The energy released by thermonuclear bombs is measured in megatons of TNT, where 1 megaton of sqrt(T) is 4.2 * 10 ^ 15 * J Convert this energy release into megatons of TNT. Answer in units of Mton TNT.
part 1
mass = ρ x V
mass = 1739 kg/m³ x 3.8 km³ = 6608.2 kg
PE (potential energy)= mgh
PE = 6608.2 kg x 9.81 x 403
PE = 2.61 x 10⁷ J
part 2
megaton of TNT (Mt) =4.2 x 10¹⁵ J
convert PE to Mt:
2.61 x 10⁷ J : 4.2 x 10¹⁵ J = 6.21 x 10⁻⁹ Mt