The response to the question is that a car's wheel rotates at a rate of 1.44 radians per second.
What is angular velocity or speed?The angular velocity (w), a vector quantity in a uniform circular motion, is determined by dividing the displacement (), also a vector quantity, by the change in time (t). Speed is equal to |w|R and is computed by dividing the arc length traversed (S) by the time difference (t).
Is angular speed and angular acceleration equivalent?A scalar measurement of the revolving object is its angular speed. A vector representation of the rotor blade is the angular velocity. Only the degree of an angle's speed is specified. The direction and magnitude are both specified by angular velocity.
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a penny has a coefficient of static friction of 0.4 on a turntable which is spinning at 40 rpms. what is the maximum/minimum distance from the center at which the penny can be placed without sliding off?
The minimum distance from the center at which the penny can be placed without sliding off is 0.0039 m, while the maximum distance is not defined as the penny would slide off as soon as it's placed further away from the center.
To determine the maximum/minimum distance from the center at which the penny can be placed without sliding off, we need to calculate the static friction force (F_s) and the centrifugal force (F_c) acting on the penny.
[tex]F_s[/tex] = coefficient of static friction * normal force
[tex]F_c = m * r * w^2[/tex]
where
m = mass of penny
r = distance from center
w = angular velocity (converted to radians/sec)
In order for the penny to not slide off, the static friction force must be greater than or equal to the centrifugal force. Therefore,
[tex]F_s > = F_c[/tex]
Plugging in the known values:
[tex]0.4 * m * g > = m * r * (40 * 2 * \pi / 60)^2[/tex]
where g is the acceleration due to gravity (approx 9.8 m/s^2)
Solving for r:
[tex]r > = (0.4 * g) / (40 * 2 *\pi/ 60)^2[/tex]
r >= 0.0039 m
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If we can measure the period of a star's "wobble" caused by an orbiting planet, we know the _______.
a. distance to the planet.
b. distance to the star.
c. period of the planet's orbit.
d. mass of the planet.
The amount a planet "wobbles" the galaxy it is orbiting may be used to calculate the planet's period.
How far is measured in SI units?The distance unit is referred to by the Standards Organization as a metre. It's noteworthy to note that utilising this fundamental unit and a few equations, a number of derived quantities or quantities, including capacity, area, force, and movement, may be created.
How do you calculate distance?Distance is how length is calculated. For instance, a road's length is equal to its length. Decimals, centimetres, metres, and kilometer are the most used metric units for measuring distance.
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You hold your physics textbook in your hand. (Assume that no other objects are in contact with the book.)
a)Identify the forces acting on the book. (Select all that apply.)
book on hand
hand on book
floor on book
earth on book
b)For each force you identified in part (a), indicate the direction. (If a force is not applicable, choose NA.)
book on hand hand on book floor on book earth on book
c)Identify the forces acting on your hand. (Select all that apply.)
book on hand
hand on book
floor on hand
earth on hand
d)For each force you identified in part (c), indicate the direction. (If a force is not applicable, choose NA.)
book on hand hand on book floor on hand earth on hand e) Identify the forces that form the action-reaction pair as defined by Newton's third law.
earth on hand hand floor on book
The forces acting on the book are: hand on book and earth on book. The forces acting on your hand are: book on hand and earth on hand. the forces "hand on book" and "book on hand" are action-reaction pair.
You hold your physics textbook in your hand. By applying the Newton's third law of action and reaction, we can conclude that:
a) The forces acting on the book are:
hand on bookearth on book (gravitational force which result in the weight of the book)The floor is not in contact with the book, hence, there is no force from the floor on the book
b) The direction of forces in part (a):
hand on book ---> the direction is upwardearth on book ----> the direction is downwardc) The forces acting on your hand:
book on handearth on hand (gravitational force)d) The direction of forces in part (c)
book on hand ---> the direction is downwardearth on hand ---> the direction is downwarde) The action force has the same magnitude as the reaction force, but in opposite direction.
The action-reaction forces are:
earth on hand ----> the reaction force is hand on earthhand on book ----> the reaction force is book on handLearn more about Newton's law here:
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A submarine is traveling along the surface of the ocean when they spot a pod of dolphins ahead. To avoid the dolphins, the submarine will dive and travel through the ocean. If the submarine wants to be 0.9 nautical miles below the dolphins after traveling 2.1 nautical miles, what dive angle must the submarine make
The dive angle must the submarine make is found to be 25.4 °
How do you define "submarine"?a vessel capable of submersion: a nuclear submarine. a command or base for submarines. A wide range of missions, including anti-surface and anti-submarine warfare, information gathering, mine reconnaissance, ground strikes, polar operations, Special Forces support, and guarding other fleet ships, can be carried out by American submarines.
Sin Ф = 0.9/2.1;
Ф=> Sin^-1(0.9/2.1);
=> 25.4°.
How long do submarines stay submerged?
For long to four months at a time, submarines can remain submerged more than 600 feet below the surface of the water while continuously patrolling and carrying out secret operations. Although you can't always see them, they are always working under the sea in silence.
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An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm. Determine the ratio of the size of the image and the size of object2:11:21:14:1
An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm, 11:21 is the ratio of the size of the image and the size of object.
What is focal length?
A narrow lens's focal length in air is calculated by dividing the distance between its primary foci, also called its focal points, from the lens's center. How far a collimated light beam must travel to focus on a single point is determined by the focal length of a converging lens, such as a convex lens, which is positive.
What is concave mirror?
Convex mirrors have curved surfaces that extend outward in the direction of the light source. This projecting surface does not direct light; it merely reflects it.
Therefore, An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm, 11:21 is the ratio of the size of the image and the size of object.
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a point charge exists in empty space such that at a distance of 3.01 m from the charge, the electric field strength is 7.42 n/c. what is the magnitude of the charge for this point charge? c
The magnitude of the charge can be calculated using the equation E = kQ/r^2, where E is the electric field strength, k is the Coulomb's constant (8.99 x 10^9 N·m^2/C^2), Q is the charge, and r is the distance from the charge.
what is strength ?
Strength can be defined as the capacity to endure physical, mental, or emotional stress. It can refer to physical strength, mental strength, or emotional strength. Physical strength is the ability to perform physical activities such as lifting weights, running, or pushing objects. Mental strength is the ability to focus on tasks and stay motivated.
Emotional strength is the capacity to handle difficult situations and to remain calm and composed. Strength is a quality that can be cultivated through practice and hard work. It is an important factor in achieving goals, as well as maintaining a healthy lifestyle. Strength can also be developed by setting and achieving goals, practicing visualization techniques, and engaging in activities that challenge one's mental and physical abilities. Additionally, strength can be developed through positive thinking, self-awareness, and self-discipline.
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What is the weight of a person on the Moon who has a mass of 68.5 kg? (gMoon=1.6 N/kg)
Answer:
The weight of a person with a mass of 68.5 kg on the Moon is 109.6 N.
Explanation:
To find the weight of a person on the Moon, we need to use the formula:
Weight = Mass x Gravitational Force
On the Moon, the gravitational force is 1.6 N/kg. So, using that information:
Weight = 68.5 kg x 1.6 N/kg = 109.6 N
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The human body has 11 systems
- Digestive system
- Excretory system
- Circulatory system
- Respiratory system
- Nervous system
- Integumentary system
- Endocrine system
- Immune system
- Skeletal system
- Muscular system
- Lymphatic system
Besides nervous, endocrine, muscular, lymphatic, and skeletal what systems does the body not need?
Thank you so much! I have a project due about this on Tuesday, please help me! Thank you again!
Answer:
Explanation:
Urinary system, reproductive system, and integumentary system
Answer:
Useless body parts include the appendix, the tail bone, and the muscle fibers that produce goose bumps.
you are riding your bike on a track that forms a vertical circular loop. if the diameter of the loop is 10.0 m, what is the minimum speed required for you to make it around the loop?
The minimum speed required for you to make it around the loop is 7 m/s.
The displacement that an object or particle experiences with respect to time is expressed vectorially as velocity. The meter per second (m/s) is the accepted unit of velocity magnitude (also known as speed). Alternately, the magnitude of velocity can be expressed in centimeters per second (cm/s).
The vector quantity velocity (v), denoted by the equation v = s/t, quantifies displacement (or change in position, s), over change in time (t).
F net = Fc = Fg + Fn
⇒ m v²/r = mg [Fn = 0]
⇒ v = √ 5 × 9.8 [d = 10m, radius = 5m]
⇒ v = 7 m/s
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How do you compare and contrast sound waves and electromagnetic waves?
Sound waves are mechanical waves that require a medium to travel through.
What is Electromagnetic waves?Electromagnetic waves are a form of energy that have both electric and magnetic field components. They are part of the electromagnetic spectrum and are created by the oscillation of electric and magnetic fields. These waves travel at the speed of light and can be transmitted through empty space, solid objects, and even through the human body.
They are created by vibrating objects, and the sound waves travel through the medium, such as air or water, to reach the ear. Electromagnetic waves, on the other hand, are transverse waves that do not require a medium to travel through. These waves are created by oscillating electric and magnetic fields, and they can travel through a vacuum and other materials, such as gases, liquids, and solids. They are also responsible for carrying energy from one place to another.
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two tuning forks, 254 hz. and 260 hz., are struck simultaneously. how many beats will be heard? beats/s
The number of beats that will be heard per second will be 6 beats heard per second.
When two sound waves of slightly different frequencies are combined, the resulting sound wave will have a periodic variation in amplitude, which is known as a beat.
Beats occur when two sound waves of slightly different frequencies are combined. The number of beats per second is equal to the difference in frequency between the two sounds. In this case, the two tuning forks have a frequency difference of 260 Hz - 254 Hz = 6 Hz. Therefore, there will be 6 beats heard per second.
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the four tires of an automobile are inflated to a gauge pressure of 2.3 105 pa. each tire has an area of 0.027 m2 in contact with the ground. determine the weight of the automobile.
The weight of the automobile is 19.94KN
What is weight?Weight is the measure of the pull of gravity on an object. It is usually measured in units of mass, such as kilograms (kg) or pounds (lbs).
Depending on the object, the weight can be affected by the environment, including gravity, atmosphere, and other forces.
Weight of the automobile = (4 tires) x (gauge pressure) x (contact area) x (gravitational acceleration)
= (4) x (2.3 105 Pa) x (0.027 m2) x (9.8 m/s2)
= 1.994 x 104 N
= 19.94 kN
Therefore, The weight of the automobile is 19.94KN
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when using the oil immersion lens, what four procedures can be implemented to achieve the maximum resolution?
When using an oil immersion lens, four procedures can be implemented to achieve maximum resolution: Using a high-quality oil immersion objective lens, Keeping the objective lens clean, Proper focus, Proper oil matching.
What are the requirements to practice the procedures?1.Using a high-quality oil immersion objective lens: The oil immersion objective lens is the most critical component in achieving high resolution. Using a high-quality, high numerical aperture lens will ensure that the resolution is maximized.
2.Proper oil matching: The type of oil used in the immersion lens needs to have the same refractive index as the cover glass of the microscope slide to achieve maximum resolution.
3.Keeping the objective lens clean: Any dust or debris on the lens can affect the resolution. Regular cleaning of the lens with appropriate solvents will help to maintain maximum resolution.
4.Proper focus: The microscope stage needs to be adjusted so that the objective lens is in the correct position, i.e., in focus, to achieve maximum resolution. This can be done by using the fine focus knob or a focus motor.
By implementing these procedures, the maximum resolution can be achieved with an oil immersion lens.
Additionally, using the oil immersion lens at the highest possible magnification while keeping the sample well illuminated will also help to achieve the best resolution.
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the electromagnetic spectrum organizes electromagnetic waves based on their
All electromagnetic waves are organized into a continuum called the electromagnetic spectrum according to their frequency and wavelength.
What are frequency and wavelength?The wavelength, which will also apply to troughs, is the separation between two wave crests. The frequency is measured on cycles per second (Hz), which is the quantity of vibrations that cross a specific area in a second (Hertz). In this article, the relationship between frequency and wavelength is covered.
What is an example of a wavelength?Here are some wavelength examples: Yellow Light is a prime example. The wavelength range of all visible light is 400 to 700 nanometers (nm). The wavelength of yellow light is 570 nanometers or such. Wavelength (nm) (nm)
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Unpolarized light with intensity 350 W/m^2 passes first through a polarizing filter with its axis vertical, then through a second polarizing filter. It emerges from the second filter with intensity 126 W/m^2 what is the angle from vertical of the axis of the second polarizing filter?
Express your answer to two significant figures and include the appropriate units.
The angle from vertical of the axis of the second polarizing filter unpolarized light with an intensity of 350 W/m² passes first through the polarizing filter with the vertical axis, then through the second polarizing filter and merging from the second filter with an intensity of 126 W/m² = 53°
The notions presented by Malus regarding the intensity of light must be used to answer this question.
According to the law of Malus, intensity is described as:
I' = [tex]\frac{1}{2}[/tex] I₀ cos²∅
The expression for the light's intensity is provided by after the first filter.
I = [tex]\frac{1}{2}[/tex] I₀
= [tex]\frac{1}{2}[/tex] (350 W/m²)
= 175 W/m²
Hence,
I' = [tex]\frac{1}{2}[/tex] I₀ cos²∅
cos²∅ = (2I' / I₀)
∅ = cos⁻¹ ([tex]\sqrt{\frac{(2)(126)}{350} }[/tex])
= 53°
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An object is placed 19 cm to the left of a converging lens of focal length 30 cm. A diverging lens of focal length 9 cm is 25 cm to the right of the converging lens. Find the position and magnification of the final image.
The final image will be real and obtained at infinity is the position and magnification of the final image.
What are convergent and divergent lenses?A converging lens brings together parallel light rays that are moving in their direction. A diverging lens does just that as parallel light rays approach it. It creates the true image. The virtual image is created. A converging lens is also known as a convex lens.
Is a convex lens also a converging lens?Since the rays converge after passing through the convex lens, convex lenses are also known as converging lenses. Since the rays diverge after striking the concave lens, it is known as a diverging lens.
For converging lens,
[tex]\frac{1}{f} =\frac{1}{v} -\frac{1}{u}[/tex]
[tex]\frac{1}{30} =\frac{1}{v} -\frac{1}{-19}[/tex]
[tex]\frac{1}{v} =\frac{1}{30} -\frac{1}{19}[/tex]
[tex]v=11m[/tex]
The final image will be real and obtained at infinity.
For diverging lens,
[tex]\frac{1}{f} =\frac{1}{v} -\frac{1}{u}[/tex]
[tex]\frac{1}{9} =\frac{1}{v} -\frac{1}{-30-25}[/tex]
[tex]\frac{1}{v} =\frac{1}{9} -\frac{1}{55}[/tex]
[tex]v=46m[/tex]
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1) A rectangular coil, its dimensions are 20 cms x 10 cms, it consists of 100 turns. It rotates around an axis parallel to its length in a magnetic flux of density 35 x 10 Tesla. A maximum e.m.f. of 4.4 volt was created. Calculate the speed which it rotates.
A rectangular coil, its dimensions are 20 cms x 10 cms, it consists of 100 turns. It rotates around an axis parallel to its length in a magnetic flux of density 35 x 10 Tesla. A maximum e.m.f. of 4.4 volt was created. The speed with which it rrotates is 0.252 radians/sec
How do we calculate the value for speed?The formula for calculating the speed is given by:
Speed = (e.m.f. x N) / (B x A)
Where e.m.f. = 4.4 volts, N = 100 turns, B = 35 x 10 Tesla, and A = 20 cm x 10 cm = 200 cm2
Speed = (4.4 x 100) / (35 x 10 x 200) = 0.252 radians/sec
Therefore, the correct answer is as given above. It could be calculated that the speed with which it rotates is 0.252 radians/sec.
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This is just a theoretical question, but if there was a superhero that was able to take the potential energies from around them and turn them into kinetic energy what would that look like? Because the Flash takes his potential energy and makes that kinetic energy which makes him fast. So what would it look like to take potential energy from things around them a turn that into kinetic energy? Just curious.
The conversion of energy can occur by the first law of thermodynamics.
What is the kinetic energy?We have to note that the kinetic energy would have to do with the energy of an object that is in motion. In this case, we can see that we have been told that super hero can be able to turn potential energy into kinetic energy.
This is in obedience to the first law of thermodynamics which states that energy can neither be created nor destroyed rather it can be converted from one form to another.
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11. A helium atom (mass = 4m) moving with speed v collides elastically with a deuterium (hydrogen 2)
atom (mass = 2m) at rest. Calculate the percentage change in the kinetic energy of the helium atom
after the collision.
a. 11%
b. 36%
c. 50%
d. 89%
A helium atom (mass = 4m) moving with speed v collides elastically with a deuterium (hydrogen 2) atom (mass = 2m) at rest. The percentage change in the kinetic energy of the helium atom after the collision is 50%.
What is kinetic energy?Generally, This is because in an elastic collision, kinetic energy is conserved, and the total kinetic energy of the system is the same before and after the collision.
The helium atom has twice the mass of the deuterium atom, so it has half the velocity after the collision.
Since kinetic energy is given by 1/2mv^2, the velocity is squared, so a decrease in velocity by a factor of two results in a decrease in kinetic energy by a factor of four, which is equivalent to a decrease of 50%.
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A light bulb for use with the 220 V mains is rated at 100 W.
(a) What current will flow through the bulb?
(b) If the bulb converts 20% of the energy to light, how much light energy is produced per second?
Answer:
So, 20W of light energy is produced per second.
Explanation:
a) To calculate the current flowing through the bulb, we use the formula:
I = P / V
Where P is the power in watts (100 W) and V is the voltage (220 V).
I = 100 / 220 = 0.45 A
b) To find the light energy produced per second, we use the formula:
E = P x t
Where P is the power in watts (100 W) and t is the time in seconds.
As we know only the power and not the time, we have to calculate the energy efficiency of the bulb.
Efficiency = (Energy output/ Energy input) * 100
Efficiency = (Light energy output / Total energy input) * 100
Let's assume that the bulb is on for 1 sec
Efficiency = (Light energy output / 100W) * 100
Light energy output = (Efficiency / 100) * 100W = 20W
Efficiency = 20%
So, 20W of light energy is produced per second.
Answer:
So, 20W of light energy is produced per second.
Explanation:
a) To calculate the current flowing through the bulb, we use the formula:
I = P / V
Where P is the power in watts (100 W) and V is the voltage (220 V).
I = 100 / 220 = 0.45 A
b) To find the light energy produced per second, we use the formula:
E = P x t
Where P is the power in watts (100 W) and t is the time in seconds.
As we know only the power and not the time, we have to calculate the energy efficiency of the bulb.
Efficiency = (Energy output/ Energy input) * 100
Efficiency = (Light energy output / Total energy input) * 100
Let's assume that the bulb is on for 1 sec
Efficiency = (Light energy output / 100W) * 100
Light energy output = (Efficiency / 100) * 100W = 20W
Efficiency = 20%
So, 20W of light energy is produced per second.
an egg rolls off a kitchen counter and breaks as it hits the floor. how large is the impulse that the floor exerts on the egg, and how large is the force exerted on the egg by the floor when stopping it? the counter is 1.0 m high, the mass of the egg is about 50 g, and the time interval during the collision is about 0.010 s
How large is the impulse that the floor exerts on the egg is 22.15 N.
How does impulse relate to force?Impulse is related to force as it represents the change in momentum of an object as a result of a force acting over a period of time. Impulse is calculated by multiplying the force applied to an object by the time over which that force is applied. In this case, the force exerted by the floor on the egg causes a change in the egg's momentum, and the impulse is the product of this change in momentum and the time over which it occurred.
How do you calculate the impulse exerted on the floor?First step is to calculate the velocity of the egg just before hitting the floor,
v²=u²+2gh, where u=0
v²=0²+2×9.81×1.0
v²=4.43/s
Second step is to calculate the change in momentum of the egg,
Change in momentum=0.05×4.43/s
Change in momentum=0.2215 kgm/s
Third step is to calculate the force exerted on the egg by the floor using this formula,
Force exerted on the egg=Change in momentum/Time
Force exerted on the egg=0.2215/0.010
Force exerted on the egg=22.15 N
In conclusion how large is the impulse that the floor exerts on the egg is 22.15 N.
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how does the de broglie wavelength of an electron change if its momentum increases?
a. The de Broglie wavelength of the electron increases.
b. The de Broglie wavelength of the electron decreases.
c. The de Broglie wavelength of the electron is unchanged.
If the momentum increases, the De Broglie wavelength of an electron will increase. The correct answer is A.
The de Broglie wavelength of a particle is inversely proportional to its momentum. As the momentum of an electron increases, the de Broglie wavelength of the electron decreases.
The de Broglie wavelength of a particle is related to its momentum and its mass, with the equation λ = h/p, where h is Planck's constant and p is the momentum of the particle. Increasing the momentum of an electron will decrease its de Broglie wavelength, as the momentum and the wavelength are inversely proportional.
This is because the de Broglie wavelength of a particle is related to the uncertainty of its position, and as the momentum increases, the uncertainty of the position decreases, thereby decreasing the de Broglie wavelength.
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he proper application of a coordinated force across multiple domains can produce effects that exceed the contributions of forces employed individually is the definition of which tenet of airpower?
Synergistic Effects is a tenet of airpower The coordinated force across multiple domains produces effects that exceed the contributions of forces used individually.
The application of airpower, according to Air Force doctrine, is refined by several fundamental guiding truths known as tenets. They reflect not only the distinct historical and doctrinal evolution of airpower, but also the current appreciation for its nature. Furthermore, they supplement the joint operations principles you learned about in the previous section by providing more specific considerations for the use of airpower. According to Air Force doctrine, these tenets are interconnected, overlapping, and frequently interlocking. Priorities, for example, necessitate flexibility and versatility. However, the oldest principle of airpower, centralised control and decentralised execution, remains the cornerstone of modern warfare success.
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A spring with a spring constant of 68 newtons per meter hangs from a ceiling. When a 12-newton downward force is applied to the free end of the spring, the spring stretches a total distance of ____0.18 m0.59 m5.7 m820 m
The spring extends 0.18 meters in total. And choice (4) is accurate.
The spring stiffness is quantified by the spring constant, or k. For various springs and materials, it varies. The stiffer the spring is and the harder it is to stretch, the larger the spring constant.
The force necessary to compress or extend a spring is inversely related to the length extended, according to Hooke's law. Newton's Third Law of Motion states that a spring will return with a restoring force after being pulled. Hooke's Law, which connects spring force to continuous spring force, is followed by this restoring force.
Given information: The spring constant's value is k = 68 N/m.
F = 12 N is the amount of downward force.
The stiffness of spring material is expressed numerically as the spring constant. such that it may be calculated simply dividing the spring force by the stretch distance. It is referred to as Hooke's law.
based on Hooke's law,
F = K × x
x = F /K
x = 12/68
x ≈ 0.18m
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*You can improve your gas mileage by _____ your car before you drive.
A - warming up
B - washing
C - adding weight to front of
D - removing unnecessary weight from
A wave with a frequency of 6 kHz was found to oscillate 24,000 times. Over what time period was it measured?
The time required for a wave with a 6 kHz frequency to oscillate 24,000 times was calculated to be 41 hours. An event's repetitions per unit of time are what determine its frequency.
It is distinct from angular frequency and is sometimes referred to as temporal frequency, just to be clear. Every second, or one hertz (Hz), or unit of frequency, an event occurs. The vibration of the strings of stringed instruments, such as the guitar, is another example of oscillation. The pendulum's oscillating movement is brought on by its back-and-forth motion. Vibrations in mechanical systems are referred to as such. A particle vibrates when it oscillates between two places with respect to its centre of mass.
T = 1/lamda is the formula for time.
Time = 1/24000*106 Time = 41 hours
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Answer: 4 seconds
I'm not sure about the working out because I just got the answer while doing an online test but i hope it helps :)
2. rank the objects in order of least buoyant force to most buoyant force. is there any relationship?
The buoyant force in the increasing order is:
F<A<D<B<C=E
What is buoyant force?The buoyant force is an upward directed force that acts on any object when it is submerged either partially or completely inside a static fluid.
A body is able to float on the surface of fluid because of the buoyant force acting on the object, which tends to balance the weight of the object. The strength of the buoyant force on an object depends on the mass/volume of the fluid displaced by the object. This principle is known as Archimedes' Principle. According to Archimedes' principle, the buoyant force acting on an object is equal to the weight of the fluid displaced by the object.
The weight of an object is given by the equation:
W=mg
Here,
• m is the mass of the object.
• g=9.8m/s² =9.8m/s² is the acceleration due to gravity.
In terms of the volume, V and density ρ, the above equation becomes:
W=ρVg
It can be seen from the above equation that for a constant, ρ, we have:
W∝V
Therefore, the buoyant force will be proportional to the volume, Vf , of the fluid displaced by the object. Since the volume, Vf of the displaced fluid is equal to the volume of the object submerged inside the fluid, we have:
Vf = Vo∴Fb∝Vo
Therefore, the buoyant force in the increasing order is:
F<A<D<B<C=E
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The complete question is as follows:
a plane lands on a runway with a speed of 135 m/s, moving east, and it slows to a stop in 15.0 s. what is the magnitude (in m/s2) and direction of the plane's average acceleration during this time interval?magnitude
the magnitude (in m/s2) and direction of the plane's average acceleration during this time interval is a = -9 m/s2 in westward direction.
The rate at which velocity changes is called acceleration. Acceleration typically indicates a change in speed, but not necessarily. An item that follows a circular course while maintaining a constant speed is still moving forward because the direction of its motion is shifting.
Include the appropriate variables and the specified values in your writing.
v = 0 m/s and u = 135 m/s
t = 15 s
To calculate the necessary acceleration for the given scenario, write the first law of motion.
At zero speed, v = u + at = 135 m/s + a(15 s) a = -9 m/s2.
The plane is deaccelerating in the opposite direction of motion in this case, as indicated by the negative magnitude of acceleration. As a result, the magnitude in m/ s2 is 9 m/ s2, and the average acceleration of the plane during this time period is westward.
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(3.5 x 10^2m) x (2.5 x 10^4m)
O87.5 x 10^6m²
O 8.75 x 10^6m²
O 87.5 x 10^6m²
O 8.75 x 10^6m²
Answer:
8.75 ×10^6m²
Explanation:
(35×10^1 × 25 × 10^3)m²
(35×25×10^4)m²
(875×10^4)m²
8.75×10⁶m²Ag Express your answer as a signed integer. View Available Hint(s) the oxidation state of Ag =
The oxidation state of Ag or the charge on Ag is +1.
The oxidation state of an element is the charge the element would have if all its bonds were covalent. In the case of Ag, it forms an ionic bond with one oxygen atom, Ag+O- => AgO.
The oxygen atom has an oxidation state of -2 and the Ag is +1. To determine the oxidation state, one must understand the ionic charges of the elements in the compound.
The charge of the compound must be equal to zero, so since the oxygen has a charge of -2, the Ag must have a charge of +1. If the compound had more than one of the same element, the oxidation state would be the average of the oxidation states of the atoms.
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