Answer:
a. The pressure in the tubing is equal to the barometric pressure.
Explanation:
Since in the question it is mentioned that the if you take the stoppert part of the tube than the level of warer would be fall approx 4th floor and if it is continued than it wont be continue but remains constant.
Now here first we do that the tube i.e. connected to the bucket should be taken up. In the first instance, the bucket supplies the water to the tube but it would not increased far away to the level of the barometric pressure
Hence, the correct option is a.
NEED HELP
If a 6 volt battery is connected in series to resistances of 2 ohms, 8 ohms, and 14 ohms, what is the amount of the current that is flowing?
Answer:
I = 0.25 [amp]
Explanation:
To solve this problem we must use ohm's law which tells us that the voltage is equal to the product of the current by the resistance.
V = I*R
where:
V = voltage [Volt]
I = amperage or current [amp]
R = resistance [ohm]
Since all resistors are connected in series, the total resistance will be equal to the arithmetic sum of all resistors.
Rt = 2 + 8 + 14
Rt = 24 [ohm]
Now clearing I for amperage
I = V/Rt
I = 6/24
I = 0.25 [amp].
The acceleration of gravity on the
Moon is 1.62 m/s2. The mass of the
Moon is 7.35 x 10^22 kg. From this
information, what is the radius of the
Moon?
Answer:
Near the Earth's surface, the acceleration due to gravity is approximately constant. ... Its value is = 6.673 x 10-11 N·m2/kg2. ... The mass of the moon is 7.35 x 1022 kg. ... moon, the distance to the center of mass is the same as the radius: r = 1.74 x ... Handwriting · Spanish · Facts · Examples · Formulas · Difference Between ...
Explanation:
The acceleration of gravity on the Moon is 1.62 m/s2. The mass of the Moon is 7.35 x 10^22 kg. From this information, then the radius of the Moon is 3 * 10¹² m.
What is moon ?The sole natural satellite of Earth is the Moon. With a diameter around one-quarter that of Earth (equivalent to the breadth of Australia), it is the largest and most massive compared to its home planet and the fifth largest satellite in the Solar System. The Moon is bigger than any known dwarf planets of the Solar System and is a planetary-mass object with a distinct rocky body, making it a satellite planet according to geophysical definitions of the word. There isn't much of an atmosphere, hydrosphere, or magnetic field there. With a surface gravity of 0.1654 g, it has a gravity that is around one-sixth that of Earth. Jupiter's moon Io is the only satellite in the Solar System that is known to have a greater gravity and density.
The Moon travels an average distance around Earth.
Given,
g = 1.62 m/s²
m = 7.35*10²² kg
according to formula,
g = GM/r²
1.62 = 6.67× 10⁻¹¹ m³ kg⁻¹ s⁻²*7.35*10²² kg/r²
solving this for r we get
r = 1.7 * 10⁶ m
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check the correctness of formula t=2π √m/k, dimensionally
Hi there! Lets see!
m is mass, and its units are kgk is the elastic constant measured in newtons per meter (N/m), or kilograms per second squared kg/s²Therefore:
[tex]\sqrt{\dfrac{m}{k}} =\sqrt{\dfrac{[kg]}{[\dfrac{kg}{s^2}]}} =\sqrt{\dfrac{[kg]}{[kg]}\cdot s^2} = \sqrt{[s]^2} = s[/tex]
The period is given in seconds so the formula is dimensionally correct.
Which the organism having prokaryotic cell
Answer:
Animals
Explanation:
FLAMING OR ALBERT .........
Answer:
Albert
Explanation:
Describe the agronomic significance of the upper and lower plastic limits, and of the plasticity index?
Answer:It shows the size of the range of the moisture contents at which the soil remains plastic. In general, the plasticity index depends only on the amount of clay present. It indicates the fineness of the soil and its capacity to change shape without altering its volume.
Which statement does not describe brainstorming?
A Keep a record of ideas.
B Keep criticism of other's ideas to yourself.
C Collect only a few ideas.
D Use all of the information found when researching
Answer:
d
Explanation:
i just know (pls check out my question pls i will give nayone who answers brainiest)
The speed of sound through liquid glycerol is about 1900 m/s. Which of the following could be the speed of sound through solid steel?
A.
150 m/s
B.
730 m/s
C.
1900 m/s
D.
5950 m/s
150 m/ssssssssssssssssssssssssssssssssssss
If the speed of sound through liquid glycerol is about 1900 meters per second, then 5950 meters per second could be the speed of sound through solid steel, therefore the correct answer is option D.
What is a sound wave?It is a particular variety of mechanical waves made up of the disruption brought on by the movements of the energy. In an elastic medium like the air, a sound wave travels through compression and rarefaction.
As given in the problem statement The speed of sound through liquid glycerol is about 1900 m / s , then we have t find out which of the following could be the speed of sound through solid steel,
The speed of the sound is greater in the solid medium as compared to the liquid and gaseous mediums.
Thus, the correct answer is option D.
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An amateur astronomer looks at the moon through a telescope with a 15-cm-diameter objective. What is the minimum separation between two objects on the moon that she can resolve with this telescope? Assume her eye is most sensitive to light with a wavelength of 550 nm.
A. 120 m B. 1.7 km C. 26 km D. 520 km
Answer:
y = 128.0 km
Explanation:
The minimum separation of two objects is determined by Rayleygh's diffraction criterion, which establishes that two bodies are solved if the first minino of diffraction of one coincides with the central maximum of the second, with this criterion the diffraction equation remains
the diffraction equation for the first minimum is
a sin θ = λ
In the case of circular openings, the equation must be solved in polar coordinates, leaving the expression, we use the approximation that the sine of tea is very small.
θ = 1.22 λ / d
d = 15 cm
to find the distance we can use trigonometry
tan θ = y / L
tan θ = sin θ / cos θ = θ
substituting
y / L = λ / d
y = L λ /d
let's calculate
y = 384 10⁸ 500 10⁻⁹ / 0.15
y = 1.28 10⁵ m
Let's reduce to km
y = 1.28 10⁵ m (1km / 10³ m)
y = 128.0 km
the correct answer is 120 km away
In physics, a is a group of related objects that interact with each other and form a complex whole.
Answer: a system
Explanation: just did the test
Answer:
system is correct
Explanation:
A mason stretches a string between two points 70 ft apart on the same level with a tension of 20 lb at each end. If the string weighs 0.18 lb, determine the sag h at the middle of the string.
Answer:
Explanation:
Let tension be T in each string . Let angle with horizontal be θ in the middle
The sum of vertical components of tension of two string will balance the weight
2Tsinθ = mg
2 x 20 sinθ = .18
sinθ = .18 / 40 = .0045
θ = .25783 degree
If sag be y
y / 70 = tan .25783
y = 70 x tan.25783
= .3150 m
= 31.50 cm .
Students start to walk across a bridge at 1.5 m/s. If it takes them 360 seconds to cross the bridge, how long is the bridge (in meters)?
Nicole is making smoothies. She uses 1.2 kilograms of
apples and 600 grams of strawberries. How many
kilograms of fruit does Ann use in all?
I
Answer:
1.8 kg
Explanation:
Nicole is making smoothies. She uses 1.2 kilograms of apples and 600 grams of strawberries.
1.2 kg = 1200 gram
600 grams
Now,
1200 + 600 = 1800 gram
1800 gram = 1.8 kg
Thus, 1.8 kilograms of fruit does Ann use in all
-TheUnknownScientist
A satellite is a large distance from a planet, and the gravitational force from the planet is the only significant force exerted on the
satellite. The satellite begins falling toward the planet, eventually colliding with the surface of the planet. As the satellite falls,
which of the following claims is correct about how the force that the planet exerts on the satellite Fps changes and how the force
that the satellite exerts on the planet Fsp changes, if at all? What reasoning supports this claim?
A
Fps and Fs both increase. The gravitational forces that two objects exert on one another decrease as the
separation between the objects increases, and these forces are always equal in magnitude.
B
Fps increases while Fsp remains constant. The gravitational force exerted by a planet on a satellite decreases
as the separation between the two objects increases, and the force exerted by the satellite on the planet remains
negligibly small.
с
Fps remains constant while Fgp increases. The gravitational force exerted by a planet on a satellite is a constant
equal to the weight of the satellite, and the gravitational force exerted by the satellite on the planet decreases as
the separation between the two objects increases.
D
Fps and Fs both remain constant
. The gravitational forces that a planet and a satellite exert on one another is a
constant equal to the weight of the satellite.
Answer:
None of the provided reasoning correct.
Explanation:
Let d be the distance between the center of the planet having mass M and the satellite having mass m.
The gravitational force acting between the planet and the satellite is
[tex]F= \frac {GMm}{d^2}\cdots(i)[/tex]
where G is the universal gravitational constant, d is the distance between the center of two bodies having masses M and m.
This gravitational force, F, is the mutual force between both the objects, so
[tex]F=F_{ps}=F_{sp}[/tex]
Where [tex]F_{ps}[/tex]: the force that the planet exerts on the satellite and
[tex]F_{sp}[/tex] the force that the satellite exerts on the planet.
So, from equation (i),
[tex]F_{ps}=F_{sp}=\frac {GMm}{d^2}\cdots(ii)[/tex]
As the satellite is falling towards the planet, to the distance, d, between the center of the planet and satellite is decreasing.
Now, from equation (ii), as [tex]F_{ps}[/tex] and [tex]F_{sp}[/tex]are inversely proportional to [tex]d^2[/tex]. So, both [tex]F_{ps}[/tex] and [tex]F_{sp}[/tex] increase on decreasing d.
Hence, both [tex]F_{ps}[/tex] and [tex]F_{sp}[/tex] increase as the gravitational forces that two objects exert on one another increases as the separation between the objects decreases, and these forces are always equal in magnitude.
None of the provided reasoning correct.
will be required to accelerate a 1100kg car to .5 m/s
Answer:
550 N
Explanation:
Use Newton's second law:
F = ma
F is the force required to accelerate the car
m is the mass of the car
a is the acceleration of the car
In this problem, the mass is m=1100 kg, while the acceleration is a=0.5 m/s^2, therefore the force required to accelerate the car is 550 N
in a distance vs time graph what does the slope represent
A 40g bullet traveling at 450 m/s passed through a board and comes out traveling 300m/s. The board is 7.6cm thick. What is the force of friction applied by the wood to the bullet?
Answer:
f = 29605.2 [N]
Explanation:
To solve this problem we must use the following equation of kinematics, then use Newton's second law.
[tex]v_{f}^{2} =v_{o}^{2} -2*a*x[/tex]
where:
Vf = final velocity = 300 [m/s]
Vo = initial velocity = 450 [m/s]
a = acceleration [m/s²]
x = distance = 7.6 [cm] = 0.076 [m]
Now replacing and clearing a
2*a*0.076 = (450² - 300²)
a = 740131.57 [m/s²]
Now using Newton's second law which tells us that the force on a body is equal to the product of mass by acceleration.
f = m*a
where:
f = friction force [N]
m = mass = 40 [g] = 0.04 [kg]
f = 0.04*740131.57
f = 29605.2 [N]
Is a bike standing still potential or kinetic?
Answer:
potential
Explanation:
Potential energy is stored
Plz mark brainliest
1. A 500 N force applied to a box at a 50 degree angle above the horizontal surface. Find the x and y
components. Use the cheat sheet located in your blue resource folder, and show all work.
Answer:
The x and y components of the 500 N-force are 321.394 newtons and 383.023 newtons, respectively.
Explanation:
At first we present a figure describing the situation explained on statement, the x and y components of the force are determined by the following trigonometric expressions:
[tex]F_{x} = F\cdot \cos \alpha[/tex] (1)
[tex]F_{y} = F\cdot \sin \alpha[/tex] (2)
Where:
[tex]F[/tex] - Magnitude of the force, measured in newtons.
[tex]\alpha[/tex] - Direction of the force above the horizontal surface, measured in sexagesimal degrees.
If we know that [tex]F = 500\,N[/tex] and [tex]\theta = 50^{\circ}[/tex], then the components of the force is:
[tex]F_{x} = (500\,N)\cdot \cos 50^{\circ}[/tex]
[tex]F_{x} = 321.394\,N[/tex]
[tex]F_{y} = (500\,N)\cdot \sin 50^{\circ}[/tex]
[tex]F_{y} = 383.023\,N[/tex]
The x and y components of the 500 N-force are 321.394 newtons and 383.023 newtons, respectively.
A block of wood weighs 160 N and has a specific gravity of 0.60. To sink it in fresh water requires an additional downward force of:_______A. 54N B. 64N C. 96N D. 110N E. 240N
Answer:
Your answer is: D) 110N
Hope this helped : )
Explanation:
In order for the wood to sink, it's specific gravity must equal 1 (or greater).
Specific gravity = .6 kg/m^3= Mass/volume
F (Newtons or kg x m/s^2) = Mass*9.8m/s^2.
Therefore, Mass = 160 N / 9.8 m/s^2= 16.32 kg
Volume = Mass/Specific Gravity = 16.32kg/.6 kg/m^3 = 27.2 m^3
Desired Specific gravity = 1 = (Mass + additional force/9.8m/s^2)/Volume = (16.32 kg +X / 9.8m/s^2)/27.2m^3
Solving for the additional force: X = 106.66...N
The answer is D, 110 N will be required to sink the block of wood.
Can someone help me?
Answer: (1, 30), (2,10), (3,40), (4,20)
Explanation:
You are building a house of cards. Explain how you know if the forces
acting on the cards are not balanced
Answer:
Equilibrium
Explanation:
For something to be balanced like a house of cards all forces acting on it have to be in equilibrium.
All the cards will fall down if they the forces acting on them aren't balances. That's how, it can be known that the forces acting on the cards are not balanced.
What are balanced force and unbalanced force?The forces acting on a body are said to be balanced if the total force of all the forces acting on it equals zero. Let's examine a few instances of balanced forces to better comprehend how the motion of the body is unaffected.
Unbalanced forces are those acting on a body when the net force acting on the body is greater than zero. The body alters its state of motion when unbalanced forces act on it.
If the forces acting on the cards are not balanced, every card will fall. It is possible to determine that the forces affecting the cards are not balanced in this way.
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2) What does the specific heat capacity of a material tell you about how easy it is to heat up
that material
Answer:
See the explanation below
Explanation:
In order to understand in a better way what the specific heat is, we must analyze the units of measurement of this scalar magnitude.
[tex][\frac{kJ}{kg*C} ][/tex] or [kJ/kg*°C]
For example for water Cp = 4.1 [kJ/kg*°C]
That is, to increase the temperature by one degree celsius in one kilogram of water, 4.14[kJ] of energy is required.
What features will your car have to reduce the forces of friction and drag?
please help , i’m doing online class & my teacher doesn’t teach, we just read and try our best & i have no idea what this even means
Answer:
To decrease friction in machinery, low-friction materials such as Teflon and other plastics are used. Contact surfaces are designed to be smooth as possible. Lubricants are introduced to reduce friction. To decrease drag on an airplane, smooth surfaces and a streamlined design are used.
Which substance is the stronger base?
Milk of Magnesia
Sodium Bicarbonate
Ferrous Hydroxide
Distilled Water
Answer:
Ferrous Hydroxide
Explanation:
An object accelerates 3.0 m/s2 when a force of 6.0 N is applied to it. What is the mass of the object?
Answer:
2 kgExplanation:
The mass of the object can be found by using the formula
[tex]m = \frac{f}{a} \\ [/tex]
f is the force
a is the acceleration
From the question we have
[tex]m = \frac{6}{3} \\ [/tex]
We have the final answer as
2 kgHope this helps you
What is the difference about the center of a quasar, when contrasted with a spiral galaxy?
Answer:
I don't understand the question SRRY!!
Can you plz answer my most recent question??
The difference about the center of a quasar, when contrasted with a spiral galaxy are
For Quasars:
Quasars are known to move with a lot of speed. Quasars are small. Quasar's often emit lines shifts far to the red wavelength as far as 15% to 96% the speed of lightQuasars are often very bright and more distant objects and can be detected without observing the underlying galaxies. They are also very luminous centers of galaxies in their infancy. They are supermassive black holes surrounded by bright accretion discsThe Spiral galaxies
Spirals are known to be flattened or 'disk' galaxies. They rotate differentially. That is the time to complete a full rotation often increases with distance from the center. The disk often wind up into a spiral form as a result of disturbance.A lot of spiral galaxies has a central bulge often surrounded by a flat, rotating disk of stars.two-thirds of spiral galaxies has a bar structure via their center.Learn more from
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Question:why do some liquids flow really fast and other flow really slow?does temperature affect the rate of flow?
If the thickness of the liquid affects its flow rate
Then————
Figure out the then part by the question
Answer:
Some liquids flow really fast and some flow really slow.
Explanation:
This is because of a liquids viscosity , If the liquids viscosity is high it will flow really slow like syrup. But if it has high viscosity it will flow really fast much like water.
Hope this helped!! :)
Which of the following statements is always true?
a. An object attest has no forces acting on it
b. Unbalanced forces lead to a change in speed or
direction
c. Gravity always leads to an unbalanced force
d. The net force on a moving object can never be zero
Answer: B
Explanation:
An unbalanced force (net force) acting on an object changes its speed and/or direction of motion. An unbalanced force is an unopposed force that causes a change in motion.
Answer:B
Explanation:
How do the nuclei of covalently bonded atoms help keep the bond together.
Answer:
Explanation:
How do the nuclei of covalently bonded atoms help keep the bond together? ... -Positive particles in the nucleus are attracted to shared electrons, so the atoms stay close together. Positive particles in the nucleus are attracted to shared electrons, so the atoms stay close together.
The shared electrons in the nucleus attract positive particles, keeping the atoms close to one another. The shared electrons in the nucleus attract positive particles, keeping the atoms close to one another.
What are atoms?The smallest unit of matter that may be divided without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. As a result, the atom serves as the fundamental unit of chemistry.
The atom is mostly made up of void space. The remaining material is made up of an electron cloud that is negatively charged and is encircled by a positively charged nucleus made up of protons and neutrons.
In contrast to the nucleus, which is compact and dense, the electrons—the lightest charged particles in nature—are big and sparse. Electric forces in an atom bind the electrons to the nucleus, making them drawn to the nucleus by any positive charge.
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