Answer:
The pressure increases linearly with the depth below the surface
Explanation:
The pressure at the bottom of a column of fluid is given by:
[tex]p=p_0 + \rho gh[/tex]
where
[tex]p_0[/tex] is the atmospheric pressure
[tex]\rho[/tex] is the fluid's density
g is the gravitational acceleration
h is the depth below the surface of the fluid
As we see from the equation, the pressure is directly proportional to h, the depth below the fluid surface: therefore, as h increases, the pressure increases as well.
Sometimes when we refer to carbon dioxide we write it as CO2 what is CO2
C stands for carbon. The O stands for oxygen. CO2 is one carbon atom and two oxygen atoms
Which vertebrae are normally fused together to form a solid mass of bone? A. Sacral B. Thoracic C. Coccygeal D. Cervical
A. Sacral is the answer.
Sacral is the vertebrae are normally fused together to form a solid mass of bone.
What is meant by vertebrae ?Vertebrae exist the 33 individual, interlocking bones that form the spinal column. Each vertebra has three primary functional components: the vertebral body for load-bearing, the vertebral arch to rescue the spinal cord, and transverse processes for ligament attachment.
The sacral region (sacrum) is at the bottom of the spine and lies between the fifth segment of the lumbar spine (L5) and the coccyx (tailbone). The sacrum is a triangular-shaped bone and consists of five segments (S1-S5) that are fused together.Sacral is the vertebrae are normally fused together to form a solid mass of bone.
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Most oxygen in our atmosphere _____. has a single oxygen atom combines with carbon has two oxygen atoms has three oxygen atoms
answer all
Answer:
Two oxygen atoms
Explanation:
The majority of the oxygen in the air in our atmosphere consists of molecular oxygen ([tex]O_2[/tex]), which consists of 2 atoms of oxygen, since free oxygen mainly form covalent bonds with other atoms of oxygen.
A small fraction of the oxygen, however, in the ozone form, which consists of 3 atoms of oxygen bond together ([tex]O_3[/tex]).
4. What do orbiting satellites and the orbit of the moon around the Earth have in common?
Answer:
Central force motion
Explanation:
Answer:
Orbiting satellites are defined as the satellites that move around the earth in an elliptical path, and that takes the images and records the data of the various geological processes that undergo on the earth's surface. This is also helpful in obtaining the image of the celestial objects.
On the other hand, the moon is the natural satellite of earth, and that also revolves around the sun in an elliptical path.
These orbiting satellites and the moon orbit has something in common, that includes the balancing force. This balancing force is the force that balances the centripetal and the centrifugal force. Due to this balancing force, the satellites and the moon is able to maintain its constant circular motion. If these two forces are not balanced then either the satellites (or moon) will fall back on earth or it will move out of the earth's orbit.
The centripetal force is defined as the force that acts on a body which goes in a circular manner and is projected towards the centre of the body around which it moves. On the other hand, the centrifugal force refers to that apparent force which acts outside of a body that goes around a centre, that generates from the inertia of a body.
Which diagram below best represents the magnetic field near a bar magnet?
Since there's no choices, I will show an example.
Answer:
Refer to the diagram attached
Explanation:
What is magnetic field
Magnetic field describes the magnetic influence on moving electric charges, electric currents, and magnetic materials , which is a vector field. A moving charge experiences a force that is perpendicular to both its velocity and the magnetic field in a magnetic field.
What are magnetic field lines?
Magnetic field lines from a bar magnet are closed loops. By convention, the field direction of a magnet is assumed to be outward from the North pole and inward from the South pole. Permanent magnets can be created using ferromagnetic materials.
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Which of the following is/are true regarding magnetic fields?
I. Magnetic field lines separate magnetic poles.
II. Magnetic field lines are spaced farther apart at the magnetic poles.
III. Magnetic fields are strongest at the magnetic poles.
A. II only B. I, II, and III
C. I only
D. III only
Here is your answer
D. III only
REASON:
1) The degree of curveness at the poles is maximum.
2) The density of field lines at and near poles is maximum.
Thus, magnetic field strength is maximum at the magnetic poles.
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What is normal force?
Answer:
A force that objects exert, stopping solid objects from passing through each other aka contact.
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which statement about waves is false? a. waves transfer matter b. waves can change direction c. waves can interact with each other d. waves can transfer energy to matter
A.
Waves can transfer energy but they can’t transfer matter
Tue statement that is false about waves is that waves can transfer energy to matter. That is option D.
What is a wave?A wave is defined as a disturbance in a medium that carries energy without a net movement of particles.
The main properties of a wave include the following:
amplitude, frequency,period, wavelength, speed, and phase.The above properties possessed by waves makes it possible for it to be able to transfer an object, change its direction and interact with each other but not to transfer energy to matter.
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how is sound detected by the brain
begin with vibrations of the eardrum. Sound waves cause the eardrum to vibrate. Cells in the cochlea detect the vibrations and send a message to the brain.
Answer:
Sound must have a means by which it can be transported, for example air. That is why there is no sound in space.
The way our brain perceives sound is through the ears. The tympanum that the human being has is connected to three bones and when the air vibrates, the tympanum also vibrates, causing these vibrations to pass through those bones towards the inner part of the ears and from there to our brain.
That is the way the brain perceives sound.
if a car starts from a stop, and hits 27 meters per second in 8 seconds, what is its acceleration?
Hello,
Vinitial = 0
V final = 27 m/s
time = 8 seg
then
a = Delta(V) / Delta(t),
in other words:
a = (27-0)/8
a = 27/8
a= 3.375 m/s^2
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If an object had a mass of 5 kilograms, what would be the weight of the object measured on a spring scale in the unit of Newtons?
I don’t really really know
Weight is a unit of force.
Newtons measure force.
5 kg is a mass and is in kg. Kg and mass are independent of location. 5 kg is 5 kg on the moon, here on earth, on Jupiter and on Mars or anywhere else you care to name.
F = m*a
F = 5 * 9.81
F = 49.05 Newtons. This is how things should be weighed on planet earth.
In a circuit what do lightbulbs and a toaster represent
Answer:
RESISTANCE
Explanation:
Answer:
Resistance
Explanation:
In a circuit, voltage source (cell or battery), key (for closing and opening circuit), resistance and a conducting wire are main components. Ohm's law states that current flowing in the circuit is proportional to the potential difference across the two ends.
V = I R
Where R is the resistance. Current also depends on the resistance. Greater resistance means lesser current would flow.
A light bulb and toaster represent resistance. These devices are based on Joule's Heating. When current passes through a resistance, it heats up and energy is lost as heat in case of toaster and as heat and light in case of light bulbs.
A bullet is shot from a gun at an angle of 30° it’s horizontal component is 40 m/s what is the actual velocity? Make sure your calculator is in degree mode
The answer is:
[tex]46.19\frac{m}{s}[/tex]
Why?Since we know the angle and the horizontal component (x-axis component) of the initial velocity, we can calculate the actual velocity (initial velocity) using the following equation:
[tex]Vo_{x}=Vo*Cos\alpha[/tex]
Where:
[tex]Vo_{x}=40\frac{m}{s}\\Vo= Initial velocity\\\alpha = angle= 30 (degrees)[/tex]
So, from the equation we can calculate Vo,
[tex]Vo_{x}=Vo*Cos\alpha\\\\\frac{Vo_{x}}{Cos\alpha}=Vo[/tex]
Then, by substituting we have:
[tex]Vo=\frac{40\frac{m}{s} }{Cos30}=\frac{40\frac{m}{s}}{0.866}=46.19\frac{m}{s}[/tex]
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the chemical formula for cesium oxide is cs2o. what is the charge of cesium
Charge +1
Explanation;Cs2O is a neutral compound, so the sum of the charges must total up to zero. Oxygen always has a charge of -2, so this means that Cs2 must have a sign of +2. Since +2 is the charge for 2 Cs atoms, this means that each Cs atom has a charge of +1.That is; (1 × -2) + (2 × x) = 0 , where x is the charge of Cs
= -2 + 2x = 0
= 2x = +2
x = +1
The charge of cesium in the compound with a formula of Cs₂O is +1
How do i determine the charge of cesium?To obtain the charge of cesium, Cs in the compound with a formula of Cs₂O, we shall determine the oxidation number of cesium, Cs in the compound. This is illustrated below:
Compound = Cs₂OOxidation number of O = -2Oxidation number of Cs =?Cs₂O = 0 (Ground state)
2Cs + O = 0
2Cs - 2 = 0
Collect like terms
2Cs = 2
Divide both sides by 2
Cs = 2/ 2
Cs = +1
Thus, we can conclude from the above calculation that the charge of cesium, Cs is +1
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Help with this physics question pls!
The answer would be:
X convex mirror
Y concave mirror
Here's more about it:
Convex mirrors are used in side mirrors in cars because it has a wider field of view than others. This is because convex mirrors bend the light it reflects. The more it bends the light. The further the object is from the mirror, the image that will be produced will be smaller. That's why the side mirrors usually say that objects are closer than they appear.
A concave lens on the other hand, reflect light inwards, away from the light source. That's why they are used in telescopes, ,because they are used to collect light. The images that concave mirrors produces are enlarged.
This chemical equation represents a ______________ reaction.
Answer: single replacement
Explanation: THIS IS THE RIGHT ANSWER I DID IT ON USA TEST PREP
This question pertains to a chemical reaction, represented by a chemical equation. These reactions are divided into categories such as precipitation, acid-base, and oxidation-reduction based on their behavioural patterns and can be presented through balanced chemical equations.
Explanation:The question refers to a type of chemical reaction. In chemistry, reactions are categorized based on patterns of behavior. Three main categories of reactions include: precipitation, acid-base, and oxidation-reduction (redox). These reactions can be symbolized by chemical equations, using formulas of substances that change (reactants) and are generated by the change (products). Each substance is separated by an arrow and preceded by integer coefficients to indicate their relative numbers. When the coefficients result in equal numbers of atoms for each element in the reactants and products, the equation is balanced.
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Which has a greater momentum? A 1200kg car traveling at 30m/s or a 2000kg truck traveling at 20m/s
the formula for momentum is velocity times mass
car :
1200 x 30 = 36000
truck:
2000 x 20 = 40000
Ans : truck has a greater momentum
Majority rule, first-come/first-served, and sharing equally are examples of _____ . productive resources non-market distribution methods opportunity costs
Non-market distribution method
non-market distribution methods, hope this helps. Have a good day.
Boltzmann’s constant is 1.38066 × 10−23 J/K, and the universal gas constant is 8.31451 J/K · mol.
If 2.4 mol of a gas is confined to a 4.3 L vessel at a pressure of 11 atm, what is the average kinetic energy of a gas molecule? Answer in units of J.
Answer:
[tex]4.95\cdot 10^{-21} J[/tex]
Explanation:
First of all, let's convert everything into SI units:
n = 2.4 mol (number of gas moles)
[tex]p=11 atm = 1.11\cdot 10^6 Pa[/tex] (gas pressure)
[tex]V=4.3 L=4.3\cdot 10^{-3} m^3[/tex] (gas volume)
R = 8.31451 J/K · mol (gas constant)
The ideal gas equation states that
[tex]pV=nRT[/tex]
Solving for T, we find the gas temperature
[tex]T=\frac{pV}{nR}=\frac{(1.11\cdot 10^6)(4.3\cdot 10^{-3})}{(2.4)(8.31451)}=239.2 K[/tex]
And now we can find the average kinetic energy of the gas:
[tex]E_K = \frac{3}{2}kT[/tex]
where
k = 1.38066 × 10−23 J/K is the Boltzmann's constant
Substituting,
[tex]E_K = \frac{3}{2}(1.38066\cdot 10^{-23} J/K)(239.2 K)=4.95\cdot 10^{-21} J[/tex]
The average kinetic energy of the gas molecule is 4.97 × 10⁻²¹ J
Calculating the average kinetic energy of a gas moleculeFrom the question, we are to calculate the average kinetic energy of the gas molecule.
The average kinetic energy of a gas molecule can be calculated from the formula,
[tex]KE_{avg}=\frac{3}{2}k_{b}T[/tex]
Where [tex]k_{b}[/tex] is the Boltzmann's constant
and T is the temperature
Now, we will determine the temperature of the gas
From the given information
R = 8.31451 J/K.mol
n = 2.4 moles
V = 4.3 L
P = 11 atm = 1114.58 KPa
From the ideal gas equation
PV=nRT
Then, we can write that
[tex]T = \frac{PV}{nR}[/tex]
Putting the parameters into the equation, we get
[tex]T = \frac{1114.58 \times 4.3}{2.4 \times 8.31451}[/tex]
T = 240.1772
T ≅ 240.2 K
Now, for the average kinetic energy of the gas molecule
[tex]KE_{avg}=\frac{3}{2}k_{b}T[/tex]
From the given information
[tex]k_{b} = 1.38066 \times 10^{-23}[/tex]
∴ [tex]KE_{avg}=\frac{3}{2} \times 1.38066 \times 10^{-23} \times 240.2[/tex]
[tex]KE_{avg}= 4.97 \times 10^{-21} \ J[/tex]
Hence, the average kinetic energy of the gas molecule is 4.97 × 10⁻²¹ J
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Which of the following is an example of a speed? O A. -5 m/s2 west O B. 2m/s C. 2 m/s east O D. 3 m/s south
B is a speed.
A is an acceleration.
C and D are velocities.
The example of speed, with the unit as m/s (meter per second) in the following options is, option B. The option B has speed of 2 meter per second.
What is speed?Speed of an body is the distance traveled by it with respect to time. Speed of a object is the ratio of total distance traveled by the object to the time taken by it. It can be given as,
[tex]s=\dfrac{x}{t}[/tex]
Here, (x) is the distance traveled by a body and (t) is the time taken by it.
As the distance is measured in the meters and time is measured in the second. Thus the speed of an object is measured in meter per second (m/s).
When the distance travelled by an object with respect to time is represented with its direction, then it is called the velocity of the object in that direction.
The rate of change of velocity is called the acceleration. It is represented in the meter per squared second (m/s²).
In the given option,
The unit of option A is m/s². Thus it show, the acceleration. Option B has the units as m/s. Thus option B is an example of speed.Option C and D is has the unit m/s with direction, thus these options represents the velocity of the body.The example of speed, with the unit as m/s (meter per second) in the following options is, option B. The option B has speed of 2 meter per second.
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What crop is least likely to do well when the temperatures are very hot?
a. sweet corn
b. spinach
c. tomatoes
d. okra
PLEASE HURRY
a. Sweet corn and possibly d. okra.
Spinach is the crop least likely to do well in very hot temperatures due to its preference for cooler temperatures and increased likelihood of bolt when exposed to high heat.
Explanation:The crop that is least likely to do well when the temperatures are very hot is spinach.
Spinach is a cool-season vegetable that prefers temperatures between 35 and 75 degrees Fahrenheit. When exposed to high temperatures, spinach is more prone to bolting, which means it quickly produces flowers and seeds instead of growing leaves. This affects the flavor and texture of the spinach, making it less desirable.
Sweet corn, tomatoes, and okra, on the other hand, are warm-season crops that are better adapted to hot temperatures and can tolerate higher heat without significant negative effects.
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Ashlee pours some quantity of orange juice in a glass. She accidentally breaks the glass and juice spills all over the floor. Which characteristic of the juice will change?
A. mass
B. State
C. Shape
D. Volume
Only the shape of the juice will change (C), because liquids take the shape of any container you pour them into.
Pouring the juice from the bottle into the glass doesn't change its mass, stat, or volume. So why should pouring it from the glass onto the floor change any of those things ?
When Ashlee spills the orange juice on the floor, the characteristic that changes is the volume of the juice.
The characteristic of the juice that will change when it spills all over the floor is its volume. When the glass breaks, causing the juice to spill, the volume of the juice will no longer be contained within the glass.
Doctors can release medical information without a signed medical release for if the information is regarding organ or tissue donation. True or false
Answer:False
Explanation:
False
True or false olives and olive oil are staples foods in the Mediterranean diet
➷ This is a true statement. The Mediterranean diet often replaces things such as butter with olive oil.
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True. Olives and olive oil are staples foods in the Mediterranean diet. I Mediterranean and i can guarantee you it 100%.
what type of meter is connected in parallel in a circuit and why
Potential difference is measured using a device called a voltmeter . Just like ammeters, some types have a pointer on a dial, but most have a digital display. However, unlike an ammeter, you must connect the voltmeter in parallel to measure the potential difference across a component in a circuit.
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It is just simply called a Voltmeter, and it reads potential differences.
A brick lands 10.1 m from the base of a building. If it was given an initial velocity of 8.6 m/s [61º above the horizontal], how tall is the building?
First, we have to establish the reference system. Let's assume that the building is on the negative y-axis and that the brick was thrown at the origin (see figure attached).
According to this, the initial velocity [tex]V_{o}[/tex] has two components, because the brick was thrown at an angle [tex]\alpha=61\º[/tex]:
[tex]V_{ox}=V_{o}cos\alpha[/tex] (1)
[tex]V_{ox}=8.6\frac{m}{s}cos(61\º)=4.169\frac{m}{s}[/tex] (2)
[tex]V_{oy}=V_{o}sin\alpha[/tex] (3)
[tex]V_{oy}=8.6\frac{m}{s}sin(61\º)=7.521\frac{m}{s}[/tex] (4)
As this is a projectile motion, we have two principal equations related:
In the x-axis:[tex]X=V_{ox}.t[/tex] (5)
Where:
[tex]X=10.1m[/tex] is the distance where the brick landed
[tex]t[/tex] is the time in seconds
If we already know [tex]X [/tex] and [tex]V_{ox}[/tex], we have to find the time (we will need it for the following equation):
[tex]t= \frac{X}{ V_{ox}}[/tex] (6)
[tex]t=2.42s[/tex] (7)
In the y-axis:[tex]-y=V_{oy}.t+\frac{1}{2}g.t^{2}[/tex] (8)
Where:
[tex]y[/tex] is the height of the building (in this case it has a negative sign because of the reference system we chose)
[tex]g=-9.8\frac{m}{s^{2}}[/tex] is the acceleration due gravity
Substituting the known values, including the time we found on equation (7) in equation (8), we will find the height of the building:
[tex]-y=(7.521\frac{m}{s})(2.42s)+\frac{1}{2}(-9.8\frac{m}{s^{2}}).(2.42s)^{2}[/tex] (9)
[tex]-y=-10.52m[/tex] (10)
Multiplying by -1 each side of the equation:
[tex]y=10.52m[/tex] >>>>This is the height of the building
Lamars mom has a car with a 182 horsepower engine how many watts of power is that
182 Horsepower =
135,717.38 Watts
Mark as brainiest please
Answer:
135,722
Explanation:
ck12
When a mass on a spring is at maximum displacement, what quantity is at a minimum?
A) acceleration
B) velocity
C) net force
D) amplitude
B) Velocity
The spring's displacement determines the amplitude. Maximum displacement therefore means maximum amplitude.
Answer:
When a mass on a spring is at maximum displacement, velocity is at a minimum.
(b on edge)
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Dave and Kirk are learning about electromagnetic waves in class. Dave says that gamma rays are the most dangerous because they come from outer space. Kirk disagrees. Kirk says that gamma rays are not as dangerous as ultraviolet waves since they cause sunburn. Who is right and why?
Question 12 options:
Neither are right because X-rays have radiation and are the most dangerous. That is why you have to wear a lead vest when you get dental x-rays.
Dave is partly right in his answer that gamma rays are the most dangerous, but it is because of their frequency and wavelength, not where they come from.
Neither are right. Microwaves are the most dangerous because they have the longest wavelength and the biggest frequency. Microwave kill all living things.
Kirk is right. Ultraviolet waves cause sunburn and that can be very dangerous. Too much sun can cause skin cancer.
Its B. I had the question just a week ago
Dave is right because most forms of EMR can be dangerous but the most dangerous form of Electromagnetic radiation has the most energy. This radiation is called gamma rays. Gamma rays are emitted by the nucleus of an atom and can go through 6 feet of concrete, as well as damage your DNA!
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A glass jug can be used to play different pitched sounds by blowing air over the opening of the jug and vibrating the air molecules inside the jug. The sound fluctuates with the amount of liquid in the jug, similar to the length of a pipe organ. A musician wishes to play a higher-pitched sound with their jug. What should they do?
Force more air over the opening of the jub
Remove more liquid
Add more liquid
To increase the pitch of the jug sound, remove more liquid; doing so decreases the air column inside the jug which makes the vibration faster, thereby increasing the pitch.
Explanation:The pitch of the sound produced by a jug when blown across the top is determined by the column of air that can vibrate inside the jug. The longer the air column, the lower the pitch of the sound, analogous to how longer pipes in a pipe organ produce lower notes. Therefore, to play a higher-pitched sound with a jug, the musician should remove more liquid from the jug. By doing so, he decreases the air column which makes the vibration faster, thus producing a higher-pitched sound. It is important to note that forcing more air over the opening of the jug does not change the pitch of the sound but increases the volume while adding more liquid produces a lower-pitched sound.
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