The collapse depth of a submarine is the depth at which the surrounding water pressure becomes great enough to cause the submarine's hull to collapse. At this depth, the pressure is sufficient to cause the submarine's material to reach its crush strength.
Given that the collapse depth of modern submarines is around a kilometer, and assuming seawater to be incompressible, the crush depth pressure can be calculated as follows:
Pressure = density of seawater * depth * gravitational acceleration
Density of seawater = 1025 kg/m^3
Gravitational acceleration = 9.8 m/s^2
Crush depth = 1000 m
So the pressure at crush depth would be:
Pressure = 1025 kg/m^3 * 1000 m * 9.8 m/s^2 = 10,250,000 N/m^2 = 10.25 MPa
The pressure you computed is an absolute pressure. It is the force per unit area exerted by the water on the submarine's hull. It is measured relative to a perfect vacuum and it is independent of any other external pressure.
If a skateboarders track is track is 1.20 meters tall. how fast would the car be going at the bottom of the track?
a particle of mass 4 kg initially moving with a velocity of 2 m/s collides elastically with a particle of mass 6 kg initially moving with a velocity of -4 m/s. what is the final velocity of the 4 kg mass
A particle of mass 4kg initially moving with a velocity of 2m/s collides elastically with a particle of mass 6kg initially moving with a velocity of -4m/s. Then the final velocity of the 4kg mass is -26/5 m/s.
Since the collision is an elastic collision, so there is no loss in kinetic energy. The value of e is 1. Taking the right side as positive and the left side to be negative as the sign convention. Initially the speed of the 4kg mass of the block =2m/s (left to right). The speed of the 6kg block =4m/s (right to left). Let the speed of the masses after a collision to be v₁ and v₂ respectively (left to right both). According to the law of Conservation of momentum, P (initial)= P (final), (4×2)-(6×4) = (4×v1) + (6×v₂),( 2×v₁)+(3×v₂)=-8 _____(eq i).
Now, e=1, so, the velocity of separation after collision/ velocity of approach before the collision. (v₂-v₁)/(4+2) =1 , v₂-v₁ =6, 2×v₂-2×v₁= 12 ______(eq ii). Now from equations (i) and (ii), we have 5×v₂=4, v₂=⅘ m/s. Since the value of v₂ is positive so it means that it moves from left to right. Putting the value of v₂ in eq (ii), we get, v₁=-26/5 m/s.Since the value of v₁ is negative so it moves from right to left.
Hence velocity of 4 kg mass after a collision is -26/5 m/s.
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You need a capacitance of 30 μF , but you don't happen to have a 30 μF capacitor. You do have a 40 μF capacitor.Part A What additional capacitor do you need to produce a total capacitance of 30 μF Express your answer using two significant figures.Part B Should you join the two capacitors in parallel or in series?
The two capacitors 40 μF along with another capacitor of 120 μF are needed to be connected in series to produce a final capacitance of 30μF.
A ) The final capacitance required is 30 μF which is less than 40 μF. for this to occur we need to connect the capacitors in series combination.
total capacitance of series connection will be-
1/Ceq = 1/ C₁ + 1/C₂
Solving this equation C₂
1/ C₂ = 1 / Ceq - 1 / C₁
1 / C₂ = C₁ - Ceq / Ceq x C₁
C₂ = Ceq x C₁ / C₁ - Ceq
C₂= (30 μF) (40 μF) / 40 μF - 30 μF
C₂ = 120 μF
B) We need to join the capacitors in series as in series the final capacitance of the capacitor is less than either of the capacitors as this was the requirment of the question we connect them in series. Whereas in the parallel combination the capacitance increases and thus would be incorrect to use them.
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what is the minimum coefficient of static friction required to prevent the piece of cheese from sliding off of the record?'
The value of the coefficient of static friction always must be > 0 otherwise the coefficient can't be a friction coefficient.
What is friction ?
Friction is a force that opposes motion between two objects in contact. It arises due to the roughness of the surfaces in contact and the interlocking of their microscopic irregularities. Friction can be either static (when the two objects are not moving relative to each other) or kinetic (when the two objects are sliding or moving relative to each other). The magnitude of the friction force depends on the surface roughness, the normal force, and the coefficient of friction between the two surfaces.
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a dipole consists of two charges q and -q, held apart by a rod of length s,
The dipole moment of a dipole is defined as the product of the magnitude of the charge and the spacing between the two charges, written as "p". As a result, the dipole moment.
for the given dipole is: p = q * s The dipole moment is a vector quantity that is measured in Coulombs * meters (C m). The dipole moment moves from the negative charge to the positive charge. The magnitude of the dipole moment measures the dipole's strength, with bigger magnitudes representing a stronger dipole. Many physical and chemical processes, such as molecular interactions and polar solvents, rely on dipole moments. dipole moment of a dipole is defined as the product of the magnitude of the charge and the spacing between the two charges, written as "p". As a result, the dipole moment.
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two parallel plates each of length l are oppositely charged and, thus, a uniform electric field of magnitude e is formed between them.
E = V / l is the formula for calculating the electric field strength (E) between two parallel oppositely charged plates. The electron's vertical displacement (y) can be determined using the following equation: [tex]y = Vo \times t + 0.5 \times a \times t2[/tex],
Where, Vo = the electron's initial velocity perpendicular to the electric field (m/s).
t = time elapsed between the entry of an electron into an electric field and its collision with a wall (s)
a = electron acceleration owing to electric field (m/s2), given by [tex]a=\frac{qE}{m}[/tex] .
The time elapsed (t) can be computed as t = S / v, where v is the final velocity of the electron perpendicular to the electric field after it departs the field, which is given by [tex]v = \frac{Vo + qEt}{m}[/tex], and t is the time it takes the electron to travel through the electric field.
When all the previous equations are combined, we get: [tex]y = Vo \times (\frac{s}{v}) + 0.5\times qE \times(\frac{s}{v})(\frac{2}{m}).[/tex]
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The given question is incorrect. The correct question is given as:
Two parallel plates each of length I are oppositely charged and, thus, a uniform electric field of magnitude E is formed between them. An electron enters this field with velocity vo that is perpendicular to the electric field lines. The electron exits the field but it then collides with the wall which is at a distance S behind the plates. What is the vertical displacement y of the electron between the position where it entered the uniform electric field till the position where it hit the wall? You are also given the charge q of the electron and its mass m.
The downward acceleration of a 62-kg stuntwoman near the end of a fall from a very high building is 7.0 m/s^2. What resistive force does the air exert on her body at that point?
The resistive force the air exert on her body is 172 N
What is resistive force?In physics, a resistive force is any force, or the vector sum of a lot of forces, that has a direction that opposes the motion of a body. slipping and/or rolling-related friction Moving through a fluid while experiencing drag.
The resistive force (F) is equal to the weight (mg) minus the gravitational force (ma) acting on the stuntwoman,
F = mg - ma.
Weight: mg = 62 kg * 9.8 m/s^2 = 606 N
Gravitational force: ma = 62 kg * 7.0 m/s^2 = 434 N
Resistive force: F = mg - ma = 606 N - 434 N = 172 N.
So, the air exerts a resistive force of 172 N on her body at that point.
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a metal ball with a charge of -3 c has three times the surface area of another metal ball to its right carrying a charge of -6 c. the charges are separated by 9 meters. the two charges are brought into contact and then separated by a distance of 5 meters. what is the charge in coulombs on the right ball after contact?
The charges will distribute evenly on the two spheres after contact. The total charge remains the same (-9 Coulombs). The charge on the right sphere will be -4.5 Coulombs after separation.
When two metal spheres with unequal charges are brought into contact, their charge distribution will distribute evenly over the surface of both spheres. The total charge remains constant, since no charge is lost or gained in the process.
In this case, the two spheres have charges of -3 Coulombs and -6 Coulombs, which add up to -9 C. After they are separated, the charge on each sphere will be half the total charge, or -4.5 Coulombs. This distribution of charges occurs due to the movement of electrons, which flow from the sphere with higher charge to the one with lower charge until both spheres have an equal charge distribution and electric potential.
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what would be the force due to gravity acting on you if you were suddenly transported to a planet with the same radius but twice the mass as earth?
If you were suddenly transported to a planet with the same radius but twice the mass as earth, the force of gravity acting on you would change. This is because the force of gravity depends on the mass of the object you are near and the distance between you.
This force is a result of the mass of an object and its distance from another object with mass. The closer two objects are to each other, the stronger the force of gravity between them. On this new planet, you would still be the same distance from its centre, so the radius would not affect the force of gravity. However, because the planet has twice the mass of Earth, the force of gravity would be stronger.
To be more precise, the force of gravity is proportional to the product of the masses of the two objects and inversely proportional to the square of the distance between them. This means that if the mass of one object doubles, the force of gravity between them will increase by a factor of four. In this case, because the planet has twice the mass of Earth, the force of gravity acting on you would be four times stronger than it is on Earth.
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calculate q when 5.88 g of ice is cooled from -21 °c to -118 °c.
q or heat transfer when 5.88 g of ice is cooled from -21 °c to -118 °c is
1171J.
The equation q = mLΔT is used to calculate the heat transfer, or q, in a thermodynamic process. The equation states that the heat transfer, q, is equal to the product of the mass, m, of the substance being heated or cooled, its specific heat capacity, L, and the change in temperature, ΔT.
The specific heat capacity, L, is a measure of the amount of heat required to raise the temperature of one kilogram of a substance by one degree Celsius. It is a constant value for a given substance and depends on its molecular structure and physical properties.
The change in temperature, ΔT, is the difference between the initial and final temperatures of the substance, and it represents the amount of temperature change that has occurred during the process.
Therefore, the equation q = mLΔT can be used to determine the amount of heat transfer that occurs when a substance is heated or cooled, by multiplying its mass, specific heat capacity, and the change in temperature. The units of heat transfer are typically joules (J).
In this case, q = (5.88 g)(2.09 J/g°C)(-118°C - (-21°C))
q = (5.88 g)(2.09 J/g°C)(97°C)
q = 1171 J
So the heat transfer, q, is 1171 J.
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there are three rollers under a conveyor belt, and each roller has a radius of 8 centimeters. the rollers turn at a rate of 2 revolutions per second. what is the linear speed of the conveyor belt
The linear speed of the conveyor belt is 100.5 cm/s, if the radius of the roller is 8 cm and revolution speed 2 revolution per second.
The radius of the roller, r = 8 cm
Number of revolution per second, n = 2
Angular speed of the roller, ω = 2πn/T
Let the linear speed of the conveyor belt = v
ω = 2π×2/1 = 4π/sec
Linear speed is defined as the product of the radius and angular speed.
v = r × ω
v = 8 × 4π
v = 8 × 4 × 3.14
v = 100.5 m/s
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if a car is raised 11.2m on a lift and it’s GPE is 5600J what is it’s mass
The mass of the car is 51.02 kg.
Given:
height = 11.2 m
GPE = 5600 J
To find:
mass = ?
Solution:
GPE = mgh
5600 = m x 9.8 x 11.2
m = 51.02 kg
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what causes water that seeps into the ground to move in a downward direction?
Answer:
groundwater contamination.
Explanation:
explain the various views about the origin and structure of the universe
The Big Bang model, which contends that the universe started as an extremely hot, dense point around 13.7 billion years ago, is the most widely accepted theory for the creation and history of the universe.
What is the Big Bang Theory?The most popular theory for how the universe came into being is called the Big Bang Theory.
Simply expressed, it states that the universe as we currently understand it originated from an unimaginably hot and dense single point and expanded over the course of 13.7 billion years, first at unfathomable speeds and subsequently at a more palpable rate.
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if the electrical load remains the same at 120 volts, what is the electrical current when the resistance is:
As a result, doubling the voltage doubles the current if the resistance is maintained. In contrast, doubling resistance reduces current if the voltage is constant
If voltage stays the same while resistance increases, what happens to current?The current will drop, on the other hand, if the resistance in a circuit is raised while the voltage remains constant.
As a result, doubling the voltage doubles the current if the resistance is maintained. In contrast, doubling resistance reduces current if the voltage is constant.
Voltage, current, and resistance all have a relationship that is indicated by Ohm's Law. The formula V = IR is something you should be aware of. By dividing the voltage by the resistance, or I = V/R, you may quickly determine the current value from the equation.
V = IR = 120*120 = 14,400.
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The ? is a device that provides a means for connecting bonding conductors for communications systems to the grounding electrode system.A. grounding electrodeB. grounding electrode conductorC. grounding electrode systemD. intersystem bonding termination
"The intersystem bonding termination is a device that provides a means for connecting bonding conductors for communications systems to the grounding electrode system." Option D is correct.
A system for interconnecting communications system intersystem bonding conductors to the grounding electrode system. A jumper is used to link the equipment-grounding conductor at the service to the grounded service conductor.
An Intersystem Bonding Termination is a device that connects communications system grounding conductors at the service equipment or at the disconnecting mechanism for buildings or structures supplied by a feeder or branch circuit, according to the National Electrical Code.
Thus, option D is correct.
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Which of the following is one of Cannon's "internal secretions" A) hormones B) nutrients C) water D) inorganic ions
The hormones are the Cannon's internal secretions.
A substance secreted directly into the blood, as by an endocrine gland is called a hormone.
The adrenal bodies, the thyroid and parathyroids, the thymus, the pituitary, pineal, carotid, and coccygeal bodies are the principal organs treated of internal secretion, but, as it is well known, Internal secretions are also produced by duct-equipped glands.
Merocrine, apocrine, and holocrine are the three ways that exocrine glands release their secretions.
In biology, secretion is the process by which a gland or cell produces and releases a useful material. Moreover, the material created body tissues also release a number of chemicals that provide lubrication and moisture, in addition to the enzymes and hormones that enable and regulate complicated biochemical processes.
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3. Imagine that your neighbour or relative is intrested in foreign employment. Prepare a list of sources that furnish informatioin about his or her choice.
public programmes, websites, notice boards, newspapers, radio, FM, and television, as well as prospectuses.
What does information related to foreign employment mean?Foreign employment refers to moving to a new nation in search of employment and financial gain. Since the dawn of human civilisation, foreign hiring of individuals has become a common occurrence. Foreign employment gradually assumed a variety of forms.Salary, bonuses, and other work-related information Before accepting a job offer and getting ready to move abroad for it, learn everything you can about the position. When a post is offered, you will learn about the pay and benefits.Employment abroad is crucial to addressing the nation's unemployment issue. Receiving remittances in foreign currency is also beneficial.To learn more about television refer to:
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draw a complete process flow diagram for fulling an order. specify the resources used in each step. (hint: the flow time of the process is 26 minutes.)
Step 1: Receipt of Order: Customer service agent, order management system Step 2: Order Confirmation: Customer service agent, order management system.
Step 3: Inventory Check: Inventory management system; warehouse workers Step 4: Selection and Packing: Warehouse employees and packaging materials are available as resources. Payment Processing (Step 5): Payment gateway; customer service representative Shipping is the sixth step. Shipping carrier, warehouse workers,a complete process flow diagram for fulling an order. specify the resources used in each step. (hint: the flow time of the process is 26 minutes. and packaging materials are examples of resources. Step 7: Distribution: Delivery workers and a delivery truck are available as resources. The procedure takes around 26 minutes from order reception to delivery.
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6: The capacitor 3μF is paralleled with the Series combination of the Capacitors 4uf and 5uf the equivalent Capacitance.
Explanation:
ce.
The equivalent capacitance of a parallel combination of capacitors is the reciprocal of the sum of the reciprocals of the individual capacitances. Therefore, the equivalent capacitance of a 3μF capacitor paralleled with a series combination of a 4μF and 5μF capacitor is:
1 / (1/3 + 1/4 + 1/5) = 1 / (1/12 + 1/20 + 1/15) = 1 / (7/60 + 3/60 + 4/60) = 60/14 = 4.2857 μF
describe how light waves of higher energy having shorter wavelengths and higher frequencies, and how these correspond to larger energy transitions by an electron.
E = hv = hc/, where E is energy, h is Planck's constant, is frequency, c is the speed of light, and is wavelength, describes the relationship between energy and frequency as well as wavelength.
The separation between a given point and the same point at the beginning of the following wave cycle.
How are energy and wavelength related?In essence, energy is inversely proportional to wavelength but directly proportional to radiation frequency. Accordingly, energy rises with a rise in frequency or a fall in wavelength, and falls with a fall in frequency or a rise in wavelength.
Does the energy rise as the wavelength does?A wavelength () is the separation between one peak and the next. Frequency is the quantity that represents the total number of wavelengths in a period of time (f). The energy (E) and frequency (F) of a wavelength diminish as it grows in size.
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If I shoot a bird at 34 below Sea Level, and the bird is at 83 above sea level, what would happen if it missed the bird?
Answer:If you were to shoot a bird at 34 meters below sea level, and the bird is at 83 meters above sea level, the bullet would miss the bird. The bullet would likely continue to travel in the direction it was fired until it reaches the surface of the sea or until it hits an obstacle.
Explanation:
Since the bird is at a much higher elevation than the shooter, the bullet would not be able to reach it.
It's worth noting that shooting a bird in most places is illegal, and it's also important to consider the moral and ethical implications of harming or killing wild animals. It's always best to observe and appreciate nature from a safe distance.
why are electrons, rather than protons, the principal charge carriers in metal wires? group of answer choices protons are free to move through the metal, whereas electrons are fixed in place. electrons are free to move through the metal, whereas protons are fixed in place. electrons are lighter, so they move faster than protons with the same kinetic energy. electrons are in the nucleus, whereas protons are in a cloud around the nucleus.
The electrons rather than protons are the principal charge carriers in metal wires because electrons are free to move through the metal, whereas protons are fixed in place.
Electrons are negatively charged particles, whereas protons are positively charged particles. In metals, electrons are free to move and flow, making them the main charge carriers. On the other hand, protons are firmly fixed within the atomic nuclei of the metal, meaning that they are not free to move or flow. This is why electrons are the main charge carriers in metal wires and why electrical current is carried by the flow of electrons in metal wires. The flow of electrons in a metal wire can be influenced by an electric potential difference, which is what causes current to flow.
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Your question seems to be missing, but I suppose the question was:
"Why are electrons, rather than protons, the principal charge carriers in metal wires?
(group of answer choices)
protons are free to move through the metal, whereas electrons are fixed in place.
electrons are free to move through the metal, whereas protons are fixed in place.
electrons are lighter, so they move faster than protons with the same kinetic energy.
electrons are in the nucleus, whereas protons are in a cloud around the nucleus."
calculate the magnitude of his average acceleration during the first part of his motion. express your answer in multiples of g by taking its ratio to 9.80 m/s2.
We multiply that acceleration by 1 g for every 9.8 m/s squared to get the corresponding gravity on Earth. There is a speed of 5 m/s2.
The initial velocity is determined by u = 0 m/s and v = 9.80 m/s,
Where an is the average acceleration, v is the velocity, and t is the period.
Given that v = u + at,
Acceleration causes the rocket's terminal velocity to be 0 m/s.
The starting speed with a=v*t=vfv0tft0 is 9.80 m/s.
Average speed was 5 m/s2.
Acceleration is the unit of measurement for a change in velocity. Acceleration often, but not always, denotes a shift in speed. The direction of motion is changing, but an object moving in a circular course at a constant speed is still moving forward.
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a μ charge and a μ charge are inside an uncharged sphere. what’s the electric flux through the sphere?
There is no electric flow through the sphere. The passage of an electric field across a surface is measured as electric flux, which is proportional to the number of electric field.
lines traveling through the surface. In this case, the two charges inside the sphere are both positive and negative, which means they cancel each other out, and the net electric field inside the sphere is zero. As a result, the electric flow across the sphere is zero. no electric flow through the sphere. The passage of an electric field across a surface is measured as electric flux, which is proportional to the number of electric field. traveling through the surface. In this case, the two charges inside the sphere are both positive and negative, which means they cancel each other out.
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Four students each conduct a different experiment. Which student experiment represents an endothermic chemical reaction? Student 1 Student 2 Student 3 Student 4 The student mixes barium hydroxide (powder) with ammonium chloride (powder), and the temperature drops below freezing The student dilutes baking soda and vinegar, heats it on a hot plate, and then cools it. The student touches the surface of the substance with a stirring rod, and it crystallizes immediately. The student pours hydrogen peroxide into a bottle and then adds detergent. The student then adds yeast. The substance begins to foam up, and the bottle feels warm. The student combines calcium oxide and water to generate heat. The heat is used to boil an egg
The system that shows an exothermic reaction is; "The student touches the surface of the substance with a stirring rod, and it crystallizes immediately. The student pours hydrogen peroxide into a bottle and then adds detergent. The student then adds yeast. The substance begins to foam up, and the bottle feels warm"
What is an exothermic reaction?An exothermic reaction is a chemical reaction that releases energy in the form of heat, light, or sound. This energy is typically in the form of heat, which warms the surrounding environment.
Exothermic reactions are characterized by a decrease in the total energy of the system, which can be observed as a temperature increase or release of light or sound. Common examples of exothermic reactions include combustion, explosions, and many biochemical reactions.
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A thin insulating rod of length L has a charge Q spread uniformly along it. Point P is at a distance R from the middle point of the rod.What is the magnitude of the electric field, E, at point P?
The answer is qQdx. We have a spherically symmetrical scenario since the specified charge density function only has a radial dependence and no direction dependence.
The charges in the charge distribution are located using r′, and the field point(s) at the Gaussian surface are located using r. (s). The charge distribution's radius is denoted by the letter R.
We must integrate the charge density function over the volume encircled by the Gaussian surface since the charge density in this situation is not constant.
Charge for the minor component
Let λ= \sL
Let Q represent the rod's linear charge density.
Figure illustrates this. If we take an elementary charge dq with length dx at a distance x from the charge q, we get the expression dq=dx=L Q dx.
Force due to a minor element in Step 2
Coulomb's Law states that dF= 4 0.
1 \s
x \s2
"qdq" = "K Lx 2"
qQdx
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motor a has a rating of 300 W Motor B has a rating of 200 W which motor is more powerful
The Motor A is more powerful than Motor B, because it has more power that is 300 W.
What is power?Power can be defined as the rate at which work is completed in a given amount of time.The formula is P = E/t, where P represents power, E represents energy, and t represents time in seconds. According to this formula, power is defined as the consumption of energy per unit of time.The term power refers to the rate at which energy is consumed. In other words, it is a measurement of how quickly you use energy. You are doing the same amount of work whether you run up a flight of stairs in 5 seconds or take a slow walk up the same flight in 40 seconds.So here since Motor A has more power that is 300 W then it performs more work per unit time.
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if no forces are acting on an object, can the object be in motion? explain.
If no forces are acting on an object, it will continue to move with a constant velocity.
It will not change its speed or direction unless acted upon by a force. This concept is known as Newton's First Law of Motion or the Law of Inertia. Therefore, if an object is already in motion with a constant velocity and there are no forces acting on it, it will continue to move. However, if the object was initially at rest, it will remain at rest, as it requires a force to start it moving. An item at rest will remain at rest, and an object in motion will continue to travel with a constant speed in a straight line, according to Newton's First Law of Motion, often known as the Law of Inertia. The following is a mathematical formulation of the law:
F = ma,
The law states that if an item experiences no net force at all, there will be no acceleration, and it will continue to move at a constant speed.
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describe how the stars in a constellation are connected to one another.
The stars in a constellation are completely unrelated to one another. An arrangement of stars is called a constellation.
In astronomy, a constellation is a collection of stars that collectively form a particular fictitious pattern. Due to the identification and naming of these patterns over time, there are currently 88 constellations, including constellations like Orion and Aquarius.
Additionally, constellations serve a variety of functions because navigators have employed them for ages. For instance, a navigator may find Polaris, which denotes the North Pole, by pinpointing the constellation Ursa Minor. Additionally, it has made it possible for astronomers to find objects like planets. This suggests that constellations are designated star patterns used in astronomy and navigation.
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