The consequent acceleration, in, is caused by doubling the net force, F, acting on the same object.ms^-2 is going to 2a.What is net force?The vector sum of the forces exerted on a particle or body is known as the net force. As with all actual forces combined, its corresponding torque, or net force, forms the resultant force and affects the object's rotational motion. A torque-free resultant force may be defined by a system of forces.Learn more about net force with the help of given link:https://brainly.com/question/18038995#SPJ4
The acceleration would be 1m/s²
What is Force?
putting pressure to a door to push or pull it. Because force is a vector variable, it has both magnitude and direction. Force is defined as the "product of mass and acceleration of a body," in accordance with Newton's second law.
Acceleration - any process that alters velocity. There are only two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed and a direction.
if the force applied is f
the mass of the object is m
and acceleration is a = 2m/s²
so the relation will be,
f = ma
f = m×2
ATQ,
Now, when mass is 2m
a = f/m
a = 2m / 2m
a = 1 m/s²
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An extraterrestrial astronomer surveying our solar system with the doppler method could discover the existence of jupiter with just a few days of observation. True or false?.
False; finding it would require much more than a few days of observation.
What is the Doppler method?The Doppler approach is a reliable way to find exoplanets. It examines the velocity and characteristics of the star and planet using the Doppler effect. The star and the planet both revolve around the same mass.
What is measured by the Doppler technique?The periodic velocity change of the stellar spectrum brought on by an orbiting massive planet is discovered using Doppler spectroscopy.
How does the Doppler technique function?Doppler spectroscopy tracks changes in the host star's light's hue to find periodic shifts in radial velocity. A star's spectrum is redshifted when it moves away from us and blueshifted when it moves toward us.
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While a car is running, the alternator provides current to the battery and recharges it. which reaction occurs at the anode of a lead-storage battery during this process?
While a car is running, the alternator provides current to the battery and recharges it. Reduction reaction occurs at the anode of a lead-storage battery during this process .
The Lead-acid battery or lead-storage battery is one of the oldest types of rechargeable batteries.
Lead-storage batteries can be classified as secondary batteries. The chemical reactions that occur in secondary cells are reversible. The chemical process of extracting current from a secondary battery (forward reaction) is called discharging. The method of regenerating active material is called charging.
While recharging, the automobile battery functions like an electrolytic cell. The energy required to drive the recharging comes from an external source, such as an engine of a car. While charging reduction takes place at anode and while discharging oxidation takes place at anode.
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A stationary observer observes a spaceship fly-by. As the spaceship's velocity gets closer to the speed of light, the stationary observer:
A stationary observer observes a spaceship fly by. As the spaceship's velocity gets closer to the speed of light, the stationary observer would see the spaceship as being “blue-shifted” on the visible light spectrum.
This would also lead to the feeling of a faster time on the clock.
What is the Speed of Light?
This refers to the speed in which light waves propagate through different materials.
Hence, we can see that based on the fact that the observer is stationary and is observing a spaceship that is in outer space get to the speed of light, the stationary observer would see the spaceship as being “blue-shifted” on the visible light spectrum.
This is because the observer would come to the conclusions that the
Earth would appear blue-shifted its clocks would be moving more quickly than expected.
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A student volunteers to enter a hypoxic breathing chamber with very low po2 for 10 minutes, and his alveolar po2 drops to 50 mm hg. what other change would occur?
When an individual enters a hypoxic breathing chamber, the changes that would occur would be an increase in the blood pH.
What is hypoxic breathing chamber?A hypoxic breathing chamber is a type of chamber that is built with the ability to cause an artificial high-altitude conditions.
There are various changes that would occur in the body when placed in a hypoxic state. These changes include the following:
Decrease in alveolar oxygen pressure,Increase in blood pH (acidosis)breathlessness, pallor, tachycardia, and pulmonary hypertension.Therefore, when an individual enters a hypoxic breathing chamber, the changes that would occur would be an increase in the blood pH.
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A 7.2 magnitude earthquake, with an epicenter in Northern Mexico, was felt over 100 miles away in Southern California because waves generated by earthquakes
A
do not require a medium to propagate.
B
travel away from the epicenter with no interference.
C
carry energy through Earth's crust.
D
can be measured on a Richter scale.
Answer:
B
because waves generated
When fluids are pulled into capillaries, what type of receptor will detect the resulting pressure?
When fluids are pulled into capillaries, the receptor will detect the resulting pressure is Osmoreceptor
Osmoreceptor is any group of cells sensitive to plasma osmolality that are held to exist in the brain and to regulate water balance in the body by controlling thirst and the release of vasopressin.
Osmoreceptors (Fig. 4-11) located in the hypothalamus (and also in the carotid artery) are capable of sensing the concentrations of solutes, particularly sodium ion. This leads to a secretion of vasopressin.
An osmoreceptor is a sensory receptor primarily found in the hypothalamus of most homeothermic organisms that detects changes in osmotic pressure. Osmoreceptors are sensory receptors that detect changes in osmotic pressure and contribute to maintaining fluid balance in the body. They are primarily found in the hypothalamus and kidneys.
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the quantities that have only magnitude are called vector quantities.(T or F)
Answer:
F
Explanation:
When comparing two vector quantities you have to compare both magnitude and direction,but for scalar you only compare magnitude
❄ Hi there,
the answer is F, false.
∵
Vectors have both magnitude and direction, where:
magnitude = length of the arrow that represents the vector
direction = angle
∴ quantities that have only magnitude are not called vector quantities
❄
If the magnitude of the sum of two vectors is greater than the magnitude of either vector, then?
If the magnitude of the sum of two vectors is greater than the magnitude of either vector, then scaler product will always be positive
A vector is a quantity or phenomenon that has two independent properties: magnitude and direction. The term also denotes the mathematical or geometrical representation of such a quantity.
The scalar product of two vectors is the sum of the product of the corresponding components of the vectors. In other words, the scalar product is equal to the product of the magnitudes of the two vectors and the cosine of the angle between them. It is a scalar quantity and is also called the dot product of vectors.
if | a + b | > |a| or |b|
a. b = |a| |b| cos (theta)
since , | a + b | > |a| or |b|
hence, angle between a and b must be less than 90°
since , |a| and |b| are positive
cos (theta ) will also be positive as angle is between 0° and 90°
hence , cos (theta ) will be positive
hence scaler product will always be positive
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When we come out in the sun, we feel warm. How does the heat from the sun reach us?
Answer:
RadiationExplanation:
Greetings !The Sun reaches us by propagating through the vacuum of space. Sunlight reaches the Earth in about 8 minutes and 20 seconds. When this energy reaches the Earth's atmosphere, both conduction and convection play key roles to scatter it throughout the planet.
Answer: The heat from the sun reaches us through radiation and processes such as conduction and convection helps to scatter that heat on the surface of our planet.
Explanation:
The phenomenon behind the Sun's heat reaching us is radiation. It does this by propagating through the vacuum of space.
The amount of time it takes for the sunlight to reach us on Earth is approximately 8 minutes and 20 seconds. When it reaches our planet, conduction, the movement of heat or electricity through a medium or passage, as well as convection, the rising of hotter and less dense material and sinking of colder and more dense/denser material, helps to scatter the heat on Earth's surface.
The fixed assets turnover ratio of gd products is 13. 6 and that of its competitor, ap goods inc. , is 6. 0. what does this financial data primarily imply?
The correct answer is GD Products collects receivables more quickly than AP Goods.
Analysts typically utilize the fixed asset turnover ratio (FAT) to gauge operating performance. This efficiency ratio assesses a company's capacity to generate net sales from its fixed-asset investments, specifically property, plant, and equipment (PP&E). It compares net sales (income statement) to fixed assets (balance sheet) (PP&E). Utilized as a net of accumulated depreciation is the fixed asset balance. A greater fixed asset turnover ratio shows that a business has utilized fixed asset investments to drive sales effectively. A greater ratio suggests that management is making better use of its fixed assets. No information can be gleaned from a high FAT ratio about a company's capacity to produce reliable earnings or cash flows.
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a girl standing on her heel exert more pressure on the ground than an elephant standing flat on its feet. Give reasons
Answer:
The pressure exerted by a women wearing shoes with pointed heels is much greater than what an elephant with one foot can exert on ground. This because of lesser area of contact of pointed heels.
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What is the frequency in hertz of a signal that repeats 80,000 times within one minute? What is its period?
1333.3 is the frequency in the hertz of a signal that repeats 80,000 times within one minute. 0.00075 is its period.
The frequency of a repeated event is its number of instances per unit of time. In some cases, it is also referred to as temporal frequency or ordinary frequency to underline differences with spatial and angular frequencies, respectively.
The length of time it takes for a particle in a medium to complete one full vibrational cycle is the period of a wave. Being a time, a period is measured in time units like seconds, hours, days, or years. The Earth's orbit around the Sun has a duration of around 365 days, and one cycle of the Earth lasts 365 days.
frequency = cycle /second
frequency = 80000 / 60
frequency = 1333.3 hertz
Period = 1 / frequency
Period = 1 / 1,333.3
Period = 0.00075
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Part a a calorimeter consists of an aluminum cup inside of an insulated container. The cup is weighed on a top-loading balance and is found to have a mass of 31. 91 g. A reaction is conducted in the calorimeter, raising the temperature from 21. 2 c to 26. 1 c what is the change in heat q for the aluminum cup in units of j? aluminum has a specific heat of 0. 903 j 1 ? 1 write your answer to the correct number of significant figures.
Answer:
141 J
Explanation:
The lowest sig digits in a calculation determine the sig dig of the answer
The temps are listed with 3 significant digits and the spec heat is 3 sig digits (the mass has 4 sig digs) .....so answer will need 3 digits
31.91 g * .903 J/g-C * (26.1 - 21.2 C) = 141 J (three sig dig)
The energy a molecule contains due to its constant random motion is known as ____________.
A. potential energy
B. thermal energy
C. kinetic energy
D. internal energy
If the current in an inductor is doubled, by what factor is the stored energy multiplied?
a. 4
b. 1/4
c. 2
d. 1/2
e. 1
_______________
[tex]I_2=2I_1[/tex]
[tex]L=\text{const}[/tex]
_______________
[tex]\displaystyle \frac{W_2}{W_1}\; - \;?[/tex]
_______________
[tex]\displaystyle \boldsymbol{\frac{W_2}{W_1}}=\frac{\dfrac{LI_2^2}{2} }{\dfrac{LI_1^2}{2} } =\frac{I_2^2}{I_1^2} =\bigg(\frac{I_2}{I_1} \bigg)^2=\bigg(\frac{2I_1}{I_1} \bigg)^2=2^2=\boldsymbol{4}[/tex]
classify each polynimal based on the number of terms it contains
Polynomials can be classified based on the number of terms is contains which may be monomial, binomial, or trinomial.
What are polynomials?Polynomials are algebraic expressions that contains a constant that is multiplied by one or more variables.
Monomials is a type of polynomial that has only one term. From the question, the monomial is 10xyz^3.Binomial is a type of polynomial that has only two terms. From the question, the binomial are 8x^2+0.25 and -x^2y^2+2y.Trinomial is a type of polynomial that has only three temrs. From the question, the trinomial are -2x^2-x+3.5 and x^3y^4+2x^2y-3z.Learn more about polynomials here:
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The complete question:
Classify each polynomials based on the number of terms it contains.
-2x^2-x+3.5
10xyz^3
-x^2y^2+2y
8x^2+0.25
x^3y^4+2x^2y-3z
A wavelength of 489. 2 nm is observed in a hydrogen spectrum for a transition that ends in the nf level of the balmer series. what was ni for the initial level of the electron?
The distance between identical points in adjacent cycles of a waveform signal is called wavelength. The n₁ for the initial level of the electron is 4.
What is Wavelength?The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal carried in space or down a wire is defined as the wavelength.
Given the wavelength is 489.2 nm, also, it is stated that the nf level is Balmer series. Therefore,
nf level = 2
The wavelength, λ = 489.2 nm = 4.86× 10⁻⁷ meter
Now, the mathematical formula for wavelength is given as,
[tex]\dfrac{1}{\lambda} = R[\dfrac{1}{nf^2}-\dfrac{1}{n_1^2}][/tex]
where R is the Rydberg constant and its value is equal to 1.097×10⁷.
Therefore, we can write,
[tex]\dfrac{1}{4.86 \times 10^{-7}} = 1.097 \times 10^7 [\dfrac{1}{2^2} - \dfrac{1}{n_1^2}][/tex]
n₁ = 4.0021 ≈ 4
Hence, the n₁ for the initial level of the electron is 4.
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How could a man be severely injured beig hut by some tomatoes?
Answer:
he can fall down
Explanation:
he could fall down because of the tomatoes and do notice he has fallen down because of them
Discuss how friction is reduced in oce skating
Answer:
below
Explanation:
Ice melts, meaning it has a watery layer upon its surface. This allows things to be moving like they are on a liquid but it has the solidity of a solid. The thin metal of the ice skates also decrease the surface area meaning it exerts more force but in turn, it allows you to move faster and further reduces friction.
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Answer:
glass is optically denser as it is a optical material having more index number above the list
Answer:
zicron
Explanation:
it has a large refractive index
Which description best matches the image below of a hand that is using the right hand palm rule?
The right hand palm rule is that a proton moving down in the magnetic field points away from you and will experience a towards the left . Option A
What is the Flemings right hand rule?The Flemings left and right hand rule from the foundation of electromagnetism. Recall that electromagnetism has to do with the production of current by the relative motion between a charge and a magnetic field.
According to the Flemings right hand rule, when the thumb, the fore finger and the middle finger are mutually perpendicular to each other, then the then the thumb points towards the direction of the magnetic force, the forefinger points towards the magnetic field and the middle finger points in the direction of the current.
As such, the description that matches the image below of a hand that is using the right hand palm rule is that a proton moving down in the magnetic field points away from you and will experience a towards the left . Option A
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Onsidering light at the two ends of the visible light spectrum, violet light has a _____ wavelength and a _____ photon energy than red light
Considering light at the two ends of the visible light spectrum, violet light has a shortest wavelength and a highest photon energy than red light
In visible light spectrum wavelength of violet light is 380 nm to 450 nm whereas wavelength of red light is 620 nm to 750 nm.
The increasing order of visible light spectrum i.e. VIBGYOR is Violet > Indigo > Blue > Green > Yellow > Orange > Red .
When we discuss about the photon energy of Violet Light, it is 2.85 ev to 3.26 ev and the photon energy of Red Light is 1.65 ev to 2.00 ev
V- Violet- shortest wavelength with highest energy
R- Red- highest wavelength with minimum energy
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At a certain point in space there is a potential of 400 v. what is the potential energy of a 2-μc charge at that point in space? group of answer choices'
The potential energy of a 2-μc charge at that point in space is [tex]8*10^{-4}[/tex] joules.
Given,
V=400v, q=2-μc=2*[tex]10^{-6}[/tex],
U(potential energy)=V*q=400*2*[tex]10^{-6}[/tex]= [tex]8*10^{-4}[/tex] joules.
Potential energyThe energy that an item retains due to its position in relation to other objects, internal tensions, electric charge, or other reasons is known as potential energy in physics. The gravitational potential energy of an object is based on its mass and the distance from the centre of mass of another object. Other common types of potential energy include the elastic potential energy of an extended spring and the electric potential energy of an electric charge in an electric field. The joule, denoted by the sign J, is the SI's definition of an energy unit.
The vectors that are described as gradients of a particular scalar function known as potential can be used to represent these forces, also known as conservative forces, at any location in space.
At a certain point in space there is a potential of 400 v. what is the potential energy of a 2-μc charge at that point in space? group of answer choices'
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What is the upper limit to the mass of a white dwarf? there is no upper limit. there is an upper limit, but we do not yet know what it is. 1.4 solar masses 1 solar mass 2 solar masses
Answer:
Around [tex]1.4[/tex] solar mass.
Explanation:
In a white dwarf, electron degeneracy prevents the star from collapsing into itself. However, if the mass of the star exceeds the Chandrasekhar Limit, gravity would overcome electron degeneracy and star would collapse further.
The value of the Chandrasekhar Limit is approximately [tex]1.4\; M_{\odot}[/tex] ([tex]1.4[/tex] times the mass of the sun.) While this mass is the maximum possible mass of a stable white dwarf, the original mass of the star that formed this white dwarf tends to be much greater.
What compound results when cyclooctatetraene is treated with excess potassium metal?
When cyclooctatetraene is treated with excess potassium metal dipotassium cyclooctatetraene dianion compound is formed.
What is cyclooctatetraene?Unsaturated cyclooctane derivative 1,3,5,7-cyclooctatetraene has the chemical formula [tex]C_{8} H_{8}[/tex]. Another name for it is annulene. At room temperature, this polyunsaturated hydrocarbon is a colorless to light yellow flammable liquid.What is dipotassium cyclooctatetraene dianion?The cyclooctatetraenide anion, also known as cyclooctatetraenide or, more accurately, cyclooctatetraenediide.It is an aromatic species having the chemical formula [tex][C_{8} H_{8}]^{2-}[/tex] and is abbreviated as [tex]COT^{2-}[/tex] in chemistry. It is cyclooctatetraene's dianion.Learn more about such organic compounds here:
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A ball of mass 4 kg is initially traveling at 2 m/s and has a 5 N force
applied to it for 3 s. What is the impulse applied to the ball?
A. 23 kgm/s
B. 12 kgm/s
C. 5 kgm/s
D. 15 kgm/s
Answer:
D. 15 kgm/s is the value of impulse applied
. Greetings !Given values mass(m) =4kginitial velocity (u) =2 m/sForce(F) =5NTime (t) =3 sec required valueImpulse = ?Solution :[tex]impulse = force \times Δtime \\ impulse = (5) \times (3)...substitute \: values \\ impulse = 15kgm/s[/tex]
At a speed of 0. 93 ccc, a spaceship travels to a star that is 8. 5 lyly distant. part a according to a scientist on earth, how long does the trip take?
At a speed of 0. 93 ccc, a spaceship travels to a star that is 8. 5 ly distant part and according to a scientist on earth 2.3 years the trip takes.
Spacecraft
A spacecraft is a vehicle or machine designed to fly in outer space. A type of artificial satellite, spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo.
Satellites, rovers, and space stations are collectively referred to as spacecraft. In science fiction, a big, manned spacecraft that is not a satellite is commonly referred to as a spaceship.
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In general, the further planets are from the sun, the cooler they are. what other factor can have a significant influence on a planet’s surface temperature?
The factor that can have a significant influence on a planet’s surface temperature is its atmosphere.
What is the role of the atmosphere in the planet's temperature?The atmosphere plays a fundamental role in the Earth planet's temperature because it allows the entry and out of certain types of radiation that may increase the temperature.
The role of the atmosphere in the Earth's temperature is well documented because our temperature is thick and it increases its homeostatic temperature balance.
In conclusion, the factor that alters a planet’s surface temperature is its atmosphere.
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Which term describes the specific location where light rays meet after passing through a lens?
A Final statement or concluding statement
Light rays meet at Focal Point after passing through a lens.
What is a Focal Point?A focus is a place at which light or other forms of radiation converge.
A beam that enters a diverging lens parallel to its axis seems to originate at the focal point F.
A beam passing through the focal point of a converging lens departs parallel to its axis.
Parallel light rays from the right enter a converging lens at its focal point on the left.
Light rays entering a converging lens parallel to its axis converge at the lens's focal point F.
The focal length of a lens is the distance between its center and its focal point.
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The direction of the net electric force that acts on an electric charge at every point of an equipotential surface created by other charges must be?
The direction of the net electric force that acts on an electric charge at every point of an equipotential surface created by other charges must be perpendicular to the surface.
A surface with an equipotential potential is one where all points on the surface have the same electric potential. This means that at every point on the equipotential surface, a charge will have the same potential energy.
The repulsive or attractive interaction between any two charged bodies is called as an electric force. Similar to any force, its impact and effects on the given body are described by Newton's laws of motion. The electric force is among the list of other forces that exert over objects.
On an equipotential surface , the potential difference between any two points is zero. So , the work done by the electric field on a test charge moving on the surface will be zero. Therefore , the electric field must be perpendicular to the surface at every point . Hence electric force must have the same direction , that is perpendicular to the surface.
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