an object completly submerged in water as shown in the figure. draw arrows, which represent the force of the water at that depth, at various locations on the top, bottom, and side of the object. how does the force on one side of the object compare to the force on the other? how does the force on the top compare to taht on the bottom
Answers
The downward force here on top of the cylinder is greater than this pressure's equivalent upward force here on bottom of the cylinder.
What is an illustration of pressure?By pressing a knife on some fruit, one can get a straightforward illustration of pressure. The surface won't be cut if you press the flat section of the knife against the fruit. The force is dispersed over a wide area (low pressure).
How many pressure units are there?Other pressure measurements include pounds per square inch, bar, millimeters of mercury (used to measure blood pressure), centimeters of water, torr, MSW, and FSW. Atmospheric pressure is measured in atm.
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Related Questions
if the
D=19.3g/cm^3
v= 1.61 cm^3 what is the mass
Answers
Answer:
Mass=DV
=19.3g/cm^3 ×1.61cm^3
=31.266g
Explanation:
Mass is the product of an objects density and the space it occupies (volume)
is there a magnetic force on the magnet? if so, in which direction? select the correct answer and explanation. is there a magnetic force on the magnet? if so, in which direction? select the correct answer and explanation. by newton's third law, if the magnet exerts an upward force on the loop, the loop must exert a downward force on the magnet. by newton's third law, if the magnet exerts an upward force on the loop, the loop must exert an upward force on the magnet. the magnet exerts an upward force on the loop, but the loop doesn't exert any force on the magnet. the loop exerts an upward force on the magnet, but it's compensated by the magnet's force. so there is no force exerted on the magnet.
Answers
Yes, there is a magnetic force on the magnet. The direction of the force depends on the orientation of the magnet and the magnetic field it is in.
According to Newton's third law, if the magnet exerts an upward force on the loop, the loop must exert an equal and opposite downward force on the magnet. This is because for every action, there is an equal and opposite reaction. So, the correct answer and explanation is: by Newton's third law, if the magnet exerts an upward force on the loop, the loop must exert a downward force on the magnet.
If the magnet exerts an upward force on the loop, then by Newton's third law, the loop must exert a downward force on the magnet. Therefore, the direction of the magnetic force on the magnet is downward.
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a student is experimenting with electromagnets and created this simple electromagnet. when connected to the battery, the nail can pick up 5 paper clips. what are two ways the student can change this setup so the electromagnet can pick up more than 5 paper clips.
Answers
Astudent is experimenting with electromagnets and created this simple electromagnet. when connected to the battery, the nail can pick up 5 paper clips. Two ways that the student can change the setup so that the electromagnet can pick up more than 5 paper clips are using a stronger battery and using a thicker iron core.
Electromagnets are created by passing an electric current through a wire wrapped around a core material, such as an iron nail. They are used in a variety of applications, including motors, generators, and speakers.The strength of the magnetic field generated by an electromagnet is determined by several factors, including the number of wire turns in the coil, the current flowing through the coil, and the magnetic properties of the core material.
In this case, the student can change the setup in two ways to increase the strength of the electromagnet and allow it to pick up more than five paper clips. First, the student can use a stronger battery to increase the current flowing through the coil and generate a stronger magnetic field. Second, the student can increase the number of wire turns in the coil or use a thicker iron core that can generate more magnetic force. Increasing the current flow through the coil or using a thicker iron core that can generate more magnetic force will help in the generation of a stronger magnetic field. This will make the electromagnet able to pick up more paper clips than before.
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Discribe the phrase "like dissolves like" in terms of polarity.
Answers
The phrase "like dissolves like" can be described as the compounds which have similar nature dissolve in each other that is polar dissolves polar and non-polar dissolves non-polar molecules.
What is Polarity?Polarity is the separation of electric charge which is leading to a molecule or the chemical groups which are having an electric dipole moment, with a negatively charged end and a positively charged end as well. Polar molecules are the molecules which must contain one or more polar bonds which occur due to a difference in the electronegativities between the bonded atoms of the molecule.
A simple way to predict the compounds which will dissolve in other compounds is the phrase of the compound such as "like dissolves like". This means that the polar compounds dissolve in polar compounds, and the nonpolar compounds dissolve in nonpolar compounds, however, the polar and nonpolar molecules do not dissolve in each other.
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An object is undergoing simple harmonic motion. Throughout a complete cycle it:____.
a. Has varying acceleration
b. Has varying amplitude
c. Has constant speed
d. Has varying mass
e. Has varying period
Answers
The correct answer is option A: Has varying acceleration
An object is undergoing simple harmonic motion. Throughout a complete cycle, it has varying acceleration.
In Physics, simple harmonic motion(SHM) refers to the periodic motion or back-and-forth movement of a particle through a central position or equilibrium point.
In SHM, the maximum position of the particle on one side is equal to the extreme displacement of the particle on the opposite side.
To put it simply, SHM is a type of motion in which the object moves along a straight line having a particular acceleration proportional to the displacement and its direction is always towards the central fixed position i.e O.
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Which statement describes a controlled experiment?
A. It includes two groups, both of which are exposed to the factor
being tested.
B. It includes a group exposed to one of the factors being tested and
a group that is exposed to another of the factors being tested.
C. It includes a group exposed to the factor being tested and a group
that is not exposed to the factor being tested.
D. It includes two groups, neither of which is exposed to the factor
being tested.
Answers
Answer:The answers is c, a group exposed to the factor being tested, and a group that isn’t exposed to the factor tested.
Explanation:
Physicists make their work easier by summarizing data in tables and graphs and by abbreviating quantities
Answers
Answer:
visual are used as a way for our brains to Kriti understand information which is the powerful tool is used for glass can show a large amount of data quickly in a way that it is to process with a bunch of numbers
Explanation:
graph and charts communicate information visually they can show pattern self scientist simply corrections and guess the point of experiment across quickly depended variable is y axis
a service main at the end of a street decreases in diameter from 12 to 4 inches. if the flow rate is 4 ft/s and the pressure at point 1 is 50 psi
Answers
The amount of fluid that moves past a point in area A per unit of time is known as the flow rate.
How do you find average velocity from flow rate?The amount of fluid that moves past a point in area A per unit of time is known as the flow rate. Here, a uniform pipe carrying the shaded fluid cylinder passes point P in time t. The cylinder's capacity is Ad, its average velocity is v=d/t, and its flow rate is Q=Ad/t=Av.The average fluid velocity for laminar flow through a pipe is equal to half of the fluid's greatest velocity at the pipe's center. The Hagen-Poiseuille equation is shown above. Since there is no acceleration in a steady and uniform flow, there is no force acting in the direction of the flow.To learn more about fluid velocity refer,
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A solid disk is rolling without slipping on a level surface at a constant speed of 2.50 m/s. (a) if the disk rolls up a 30.0o ramp, how far along the ramp will it move before it stops? (b) explain why your answer in part (a) does not depend on either the mass or the radius of the disk.
Answers
(a) By using the law of conservation of energy, the distance moved by the solid disk along the ramp is 0.96 m.
(b) The answer does not depend on the mass and radius of the disc as these values are canceled when the law of conservation of energy is applied.
What is the law of conservation of energy?
The law of conservation of energy states that the total energy of an isolated system is conserved.
The total initial energy Ei of the disc rolling down an inclined plane is given by the formula,
Ei=1/2*mv^2 + 1/2*Iω^2
where m is the mass of the disc, v is the velocity of the disc, I is the moment of inertia and ω is the angular velocity of the disc.
For a solid disc, I=1/2mr^2, and since it is rolling without slipping, the rolling velocity of the disc will be equal to its translational velocity, that is,
v=ωr or ω=v/r
So using ω=v/r and I=1/2mr^2, it can be written,
Ei=1/2*m(v)^2 + 1/2*(1/2mr^2)(v/r)^2
Ei=1/2*m(v)^2*(1+1/2*)
Ei=3/4*mv^2
If the height covered by the disc is h before stopping, then its final total energy Ef will be equal to the potential energy, that is,
Ef=m*g*h
From the law of conservation of energy, it can be written,
Ei=Ef
3/4*mv^2=m*g*h
h=3v^2/(4g)
The length of the ramp is then given by the formula,
l=hcosecθ
where θ is the inclination angle. So
l= 3v^2/(4g)*cosecθ
Here g=9.8 m/s^2, v=2.5 m/s and θ=30.0 degree. Using these values,
l= 3*(2.5 )^2/(4*9.8)*cosec( 30)
l= 0.96 m
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Task: At the end of the lesson you will be asked to develop a final writing assignment on the environmental problerns
caused by invasive e algae e, and the methods used to restore the natural habitats e in Crystal River and Kings Bay,
ments
Essay Response: (3 Paragraphs)
5
• Describe the environmental problem caused by invasive algae in these areas and the goals of the Save Crystal River
project.
• Explain the steps in the process used to correct the problem.
. Finally, conclude with why the information gathered during the Save Crystal River project is important to the
environment now and to future generations,
If someone can answer this fast I will mark as brainlist and give them 100 points plzz I need the answer fast and right!!
Answers
Answer:
PLS PLS PLS mark brainliest
Explanation:
The following are the environmental problems caused by the invasive algae which is known as Lyngbya.
A. It blocks the sunlight from reaching the water, thereby depriving the plants in the water from accessing it. So they won't be able to manufacture their foods and eventually die off.
B. The algae produce offensive odour like rotten egg , which drive people and other organisms away.
C. The algae prevent oxygen from entering the water, and prevent the resident organisms from making use of it, which leads to their death.
D. The algae also give off heat into the chilly spring waters.
In conclusion, the goals of the Crystal River project is to save the living organisms in the river from extinction and to make it a livable environment for them.
Your new motorcycle weighs 2450 N.
What is
its mass in kilograms?
i understand the answer is 250kg because mass times gravity thing but why isn’t the answer negative cause gravity pulls down so wouldn’t be Negative answer not a positive answer
i was taught FW is always negative why isn’t it negative here
Answers
Answer:
Explanation:
The negative only matters reallly if you are dealing with a 2d system. I could even define down as positive and up as negative. However, usually you are taught that down is negative. It really doesn't matter because a force is a force. It is only given a direction relative to another force or vector direction.
15. two identical rifles are shot at the same time and the sound intensity level is 80.0 db at a location equidistant from both rifles. what would be the sound intensity level at this point if only one rifle were shot?
Answers
The sound level of intensity would be "61.7 dB" if only one weapon were fired. Sound volume. The answer to the query is. the shooting of two identical weapons.
80 dB is how loud?A loud noise is 80 dB or more. It's comparable to the commotion on a crowded city street. It is a loud noise level, and when you're exposed to it during longer periods of time (more than 8 to 10 hours per day), it could damage your hearing.
How loud is 80 dB?Decibels are used to measure loudness (dB). Loudness grows rapidly as decibel levels climb. A 10-dB increase equals a 10-fold increase in volume. Therefore, a vacuum cleaner's 80 dB sound is 10 times higher than a phone's 70 dB sound and 100 times higher than a standard 60 dB sound.
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Magnetic resonance imaging (mri) depends on the presence in tissue of __________________.
Answers
Answer:
Pretty sure magnetic waves thank me later bro bro
Remi travels 160 meters in 4 seconds. What was Remi's initial speed if her final velocity was 6.9 m/s?
Answers
Answer:
73.1 m/s
Explanation:
Given:
Δx = 160 m
v = 6.9 m/s
t = 4 s
Find: v₀
Δx = ½ (v + v₀) t
160 m = ½ (6.9 m/s + v₀) (4 s)
v₀ = 73.1 m/s
The acceleration due to gravity of jupiter is 25meter per second squar.what does it means?
Answers
Answer:
That due the the gravity anything that falls in its gravity accelerates by 25metres per second
Explanation:
What is the direction of a current that experiences the magnetic force shown above
east
south
north
west
Answers
Answer:
Sorry if I kwon the
answer I telling u
the answer sorry
During which phase is the moon not visible?
A.full moon
B.waxing crescent
C.new moon
D.first quarter
Answers
Answer:
new moon phase
Explanation:
During the new moon phase, the moon is not visible. Sometimes it can be detected by noting the visible absence of the stars that it blocks. Additionally, during new moon, sometimes enough light is reflected off the surface of the Earth that the disk of the moon is faintly visible.
Answer:
Everyone knows new moon is NOT visible
Explanation:
If you're doing an assignment of the moons, I hope this helps.
And there you have it! :]
Also, a new moon is the only phase that is not visible, It's not even visible during the day time.
contact lenses are placed right on the eyeball, so the distance from the eye to an object (or image) is the same as the distance from the lens to that object (or image). a certain person can see distant objects well, but his near point is 40.0 cm from his eyes instead of the usual 25.0 cm .
Answers
Because this person is far sighted.
What happens to the eye's lens when an item is far away?The lens might thicken as a result of the ciliary muscles contracting and making the lens more curved. The lens's greater curvature enables the eye to focus on near objects. The muscles relax and the lens' focus shifts to a further away object when the person is forced to look at a distant object.
Where in the eye are contact lenses placed?Usually, contact lenses are put in the eye by resting them on the pad of the index or middle finger with the concave side facing up. Then, the user places the lens on the eye using that finger. Direct placement of rigid lenses on the cornea is recommended.
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Which of the following is not a component of soil? a. Organic material b. Minerals c. Gases d. None of the above Please select the best answer from the choices provided A B C D.
Answers
Answer:
It's D: None of the above.
Explanation:
I looked up the components of soil and all of them were, and I also took the test and got it correct.
What acceleration will all objects experience during their flights through the air (on Earth)?
Answers
Answer:
d
Explanation:
Answer:
9.8 m/s/s
Explanation:
As such, all objects free fall at the same rate regardless of their mass. Because the 9.8 N/kg gravitational field at Earth's surface causes a 9.8 m/s/s acceleration of any object placed there, we often call this ratio the acceleration of gravity
A property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force.
Answers
Answer:
Inertia.
Explanation:
Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.
In physics, Sir Isaac Newton's first law of motion is known as law of inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.
For example, the inertia of an object such as a shopping cart is greatly dependent or influenced by its mass; the higher quantity of matter in a shopping cart, the greater will be its tendency to continuously remain at rest.
separate aircraft, when less than 40 miles from the antenna by ______ miles (wake turbulence requires additional spacing).
Answers
Separate aircraft, when less than 40 miles from the antenna by 5 miles
Separating aircraft is a critical aspect of air traffic control to ensure safe and efficient operations in the skies. When aircraft are within a certain distance from the antenna, additional spacing is required due to wake turbulence. Wake turbulence is caused by the disruption of airflows behind an aircraft in flight and can be hazardous for following aircraft.
To ensure safety, when aircraft are less than 40 miles from the antenna, they must be separated by a minimum distance of 5 miles. However, in the case of wake turbulence, additional spacing may be required. This additional spacing depends on several factors, such as the size and weight of the aircraft, weather conditions, and traffic volume.
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Separate aircraft, when within 5 miles (40 km) of the antenna
In order to maintain safe and effective operations in the skies, separating aircraft is a crucial component of air traffic management. Due to wake turbulence, greater separation is necessary when aircraft are close to the antenna. Wake turbulence, which can be dangerous for following aircraft, is brought on by the disruption of airflows behind an aircraft while it is in flight.
When an aircraft is less than 40 miles from an antenna, they must be kept apart by a minimum of 5 miles to ensure safety. However, greater distance can be needed in the case of wake turbulence. The additional distance relies on a number of variables, including the size and weight of the aircraft, the weather, the amount of traffic.
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Hai điện tích đặt cách nhau một khoảng R trong không khí thì lực tương tác
giữa chúng là 2.10−3N. Nếu khoảng cách đó mà đặt trong môi trường điện môi thì
lực tương tác giữa chúng là 10−3N. Để lực tương tác giữa hai điện tích đó khi đặt
trong môi trường điện môi bằng lực tương tác giữa hai điện tích đó khi đặt trong
không khí thì khoảng cách giữa 2 điện tích là bao nhiêu?
Answers
Which of the following variables would you need in order to calculate how long it would take a horizontally launched projectile to hit the ground?
Answers
49. A block is pushed across a horizontal surface with a
coefficient of kinetic friction of 0.15 by applying a
150 N horizontal force.
(a) The block accelerates at the rate of 2.53 m/s2
Find the mass of the block.
(b) The block slides across a new surface while
experiencing the same applied force as before.
The block now moves with a constant speed.
What is the coefficient of kinetic friction between
the block and the new surface?
Answers
Answer:
(a) 37.5 kg
(b) 4
Explanation:
Force, F = 150 N
kinetic friction coefficient = 0.15
(a) acceleration, a = 2.53 m/s^2
According to the newton's second law
Net force = mass x acceleration
F - friction force = m a
150 - 0.15 x m g = m a
150 = m (2.53 + 0.15 x 9.8)
m = 37.5 kg
(b) As the block moves with the constant speed so the applied force becomes the friction force.
\(F = \mu m g \\\\150 = \mu\times 37.5\\\\\mu = 4\)
Place the types of radiation in order of INCREASING mass.
Answers
Answer & explanation:
Gamma Radiation (γ): Also called gamma rays. Gamma radiation is made of electromagnetic waves, has zero charge and mass, continuously emits heat and has the ability to ionize air and make it conductive of electric current. Beta radiation (β): Beta rays or beta particles, are electrons, negative particles with charge - 1 and mass number 0.Alpha radiation (α): Also called alpha particles or alpha rays, are particles charged by two protons and two neutrons. They have positive charge +2 and mass number 4.if you push a sled downhill do you get a negative or positive acceleration
Answers
Answer: Positive
Explanation:
Hi there, you should get positive acceleration.
The equation for acceleration is:
a= (change in velocity/change in time)
Because both of these values are positive, the resulting acceleration is also positive.
Hope this helps!
(b) If the straight-line distance from her home to the university is 10.3 km in a direction 25.0° south of east, what was her average velocity?
Answers
Answer:
The time taken is missing in the question. The time is 18 minutes.
The answer is 34.3 km/hr
Explanation:
Average velocity is the speed or the velocity which is required to cover a distance in a time interval.
The time taken is = 18 min
= 18/60 hours
The distance from the university to her home is = 10.3 km
Therefore, the average velocity is = displacement/time taken
= 10.3 / (18/60) km/hr
= 34.3 km/hr
Hence, the average velocity is 34.3 km/hr
Design (LRFD) a column to support the loads:
Dead load 2224 kN
Live load 3114 kN
The 731.52 cm-long member is pinned at both ends and is laterally supported in the weak direction at the one-third points of the total column length.
Use Fy=345 MPa.
Select the lightest W14.
Answers
The required area of the column section (67.47 cm²) is smaller than the gross area (135 cm²) of the selected W14.
As per data,
Dead load (D) = 2224 kN,
Live load (L) = 3114 kN,
Column Length (L) = 731.52 cm.
Column is pinned at both ends and laterally supported in the weak direction at the one-third points of the total column length.
Fy = 345 MPa
To design a column to support the given loads using Load and Resistance Factor Design (LRFD) method, we use the formula;
Factored load = φD + φL
Factored load = 1.2D + 1.6L (For Strength Design)Where,φD is the dead load factor.
Where,
φL is the live load factor.
φ is the load factor (1.2D and 1.6L are the load factors for Strength Design).
Given the dead load and live load,
Factored load = 1.2(2224) + 1.6(3114)
Factored load = 7220.8 kN
The maximum factored load that a W14 column can support is;
Axial load capacity = φcPn
Axial load capacity = φcFyAg
Where, φc is the resistance factor [φc = 0.9] (for HSS sections), Fy is the yield strength of the steel, A is the cross-sectional area of the column, and Ag is the gross cross-sectional area of the column.
The lightest W14 section to be selected, Pn can be calculated by the following formula:
Pn = φcFyAg
The gross area, Ag of a W14 section can be obtained from the AISC manual as;
Ag = 135 cm² (from table 1-1, page 1-13, AISC manual).
For a W14 section;
W14 × 145 (Section depth = 14.7 cm) × 135 (Ag = 135 cm²)
The area A for the selected W14 column can be determined as;
7220.8/0.9 × 345 = 145 × A × 135
Solving for A;
A = 67.47 cm²
For W14 × 145 section;
Ag = 135 cm² and A = 67.47 cm²
The required area of the column section (67.47 cm²) is smaller than the gross area (135 cm²) of the selected W14 section.
Therefore, this section is adequate for the required design loads.
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Which of the following is a good example of a contact force? A. Earth revolving around the Sun B. a bridge suspended by cables C. a ball falling downward a few seconds after being thrown upward D. electrically charged hairs on your head repelling each other and standing up
Answers
Answer: a bridge suspended by cables