Answer:
anywhere between 100000 to about 400000 human years .
Explanation:
What will happen to the fringe spacing if the wavelength of the light is decreased?.
Answer:
The formula is the form -
m λ = d sin Θ
As the wavelength λ is decreased sin Θ will also decrease.
One can see from the derivation that as the wavelength, being considered,
is decreased the dispersion will also decrease.
C(i). A body weighs 600g in air and 400g in water. Calculate;
i. Up thrust of the body
ii. Volume of the body
iii. Relative density of the solid
iv. Density of the solid
Answer:
B buoyant force (mass) = 600 - 400 = 200 g (I)
upthrust is 200 g due to decrease in apparent body weight
(Note that g is being treated as force here when it is actually mass)
D = M / V definition of density
since density of water is 1 (1 g / cm^3)
from (I) the equivalent volume of water is 200 cm^3 since the upthrust will equal the weight of the water displaced
Relative density of solid is 600 g / 200 g = 3 (weight of solid vs the weight of the water displaced
D = 3 g / cm^3 density of solit
What do you think about Turkey??
Which change is an example of transforming potential energy to kinetic energy?
Answer:
Changing nuclear energy to radiant energy
Explanation:
Conversely, potential energy is a type of energy stored in an object, which can be converted to kinetic energy.
Nuclear energy is a type of potential energy because this energy is stored in the atomic nucleus.
In conclusion, changing nuclear energy to radiant energy is an example of transforming potential energy into kinetic energy.
Answer:
if you stand still, that's potential energy, and if you move that's kinetic energy.
Explanation:
When standing still, you aren't moving, which the potential energy now is enact, but if you move a muscle, even the tiniest one, it will cause a transformation into kinetic energy.
What is meant by the statement that the power of an electric heater is 1200W? What happens to the kinetic energy when the
velocity of a moving body is doubled?
The statement the power of an electric heater is 1200 W means that the electric heater used up 1200 J of electric energy in one second.
When the velocity of a moving body is doubled, its kinetic energy will become four times its initial kinetic energy.
What is power?Power is the rate at which energy is used up. The s.i unit of power is Watt (W).
From the question, if an electric heater is 1200 W, it means that the electric heater used up 1200 J of electric energy in one second
What is kinetic energy?Kinetic energy is the energy of a body in motion.
The formula for the kinetic energy of a body is given as
K.E = mv²/2From the equation above, it can be seen that if the velocity of a moving body is doubled, the kinetic energy of the body will become four times the initial kinetic energy of the body.
Hence, The statement the power of an electric heater is 1200 W means that the electric heater used up 1200 J of electric energy in one second.
When the velocity of a moving body is doubled, its kinetic energy will become four times its initial kinetic energy.
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If Earth had no greenhouse gases, the planet would be
Earth would be an icy wasteland if greenhouse gases were not present. Greenhouse gases keep our planet livable by retaining some of the Earth's heat energy, preventing it from escaping into space. The greenhouse effect refers to the trapping of heat.
If you were to build a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz. The speed of sound in air is 343 m/s
Building a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz will require the length of the shortest pipe to be 0.018m
What is Length?This is defined as the measurement or extent of a substance from end to end. The formula is shown below:
L = v/f where v is speed , f is frequency
f1 = 25hz , f2 = 19khz
The length for both sides is seen below:
l1 = 343/25 = 13.72m
l2 = 343/19000 = 0.018m.
The length of the shortest pipe is therefore 0.018m.
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The frequency of a repeated event is the number of occurrences per unit of time. The length of the shortest pipe is 0.018 m.
What is the frequency?The frequency of a repeated event is the number of occurrences per unit of time. It is also known as temporal frequency to distinguish it from spatial frequency, and ordinary frequency to distinguish it from angular frequency.
The formula of the length is given by the formula,
[tex]L=\dfrac vf[/tex]
where v is the velocity of the substance and f is the frequency.
Given that the speed of the sound in air is 343 m/sec, while the frequency is tanging from 25Hz to 19 kHz.
Therefore, the length of the pipe will be,
[tex]L=\dfrac vf\\\\L_1=\dfrac{343}{25} = 13.72\rm\ m[/tex]
[tex]L_2=\dfrac{343}{19 \times 1000} = 0.018\rm\ m[/tex]
Hence, the length of the shortest pipe is 0.018 m.
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What led to Henry Ford’s success as an entrepreneur?
His personal wealth.
His innovative production methods.
His commitment to improving labor laws.
What happens when volcanoes release greenhouse gases into the atmosphere?
The climate gets warmer.
The climate gets cooler.
Winter becomes longer.
Summer becomes longer.
His desire to pay high wages.
What led to Henry Ford’s success as an entrepreneur?
His innovative production methodsWhat happens when volcanoes release greenhouse gases into the atmosphere?
The climate gets warmerWhich will have the greater acceleration rolling down an incline— a bowling ball or a volleyball?
Answer:
Bowling ball
Explanation:
The bowling ball's mass will make it roll down the incline faster than the lighter volleyball.
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Why do comets only have tails when they are near the sun?.
Convert 95°F into degree centigrade.
35
Explanation:
95 =9/5*x +32
63=9/5x
9x=63*5
x=35
Differentiate between transverse wave and longitudinal wave
Explanation:
Transverse wave
The wave in which the particles of the medium vibrate up and down perpendicularly to the direction of the wave is called transverse wave...It consists of crests and troughs...It can be produced only in solids and surface of liquids...Longitudinal wave
The wave in which the particles of the medium vibrate to-and-fro in the direction of the wave is called longitudinal wave..It consists of compressions and refractions...It can be produced in solid , liquid and gas...Is the following sentence true or false? When two surfaces rub, the irreg-ularities of one surface get caught on those of the other surface.
What is current of 12 ohm? help me pleasee
A circuit has a resistance of 2.5 N and is powered by a 12.0 V battery.
The current in the circuit, to the nearest tenth, is what ?
Is an electron cloud bigger than an atom?
Answer:
no
Explanation:
An electron is one of the components of an atom, so it cannot be larger than that.
Answer:
No, it's not.
Explanation:
The tightly packed nucleus is 100,000 times smaller than the electron cloud.
[tex] \text \red { \huge\underline{Question}}[/tex]
[tex] \text{What is ideal-gas equation?}[/tex]
Answer:
PV = nRT
Explanation:
The Ideal Gas Equation shows the relation between 4 factors :-
Pressure Volume moles Temperature⇒ R is the molar gas constant included so they are equal to each other, without it, they would just be proportional
The equation :-
⇒ PV = nRT
what are various paradox related to time travel?
Answer:
This is a paradox — an inconsistency that often leads people to think that time travel cannot occur in our universe." A variation is known as the "grandfather paradox" — in which a time traveler kills their own grandfather, in the process preventing the time traveler's birth
Explanation:
hope this Wil help ....
A group of graduate students, bored during a cloudy night at the observatory, begin to make bets about the time different stars will take to evolve. If they have a cluster of stars which were all born at roughly the same time, and want to know which star will become a red giant first, which of the following stars should they bet on?
A) a star of about the same mass as our Sun
B) a star that would type O on the main sequence star
C) a star of about 1/2 the mass of our Sun
D) a star of about 8% the mass of our Sun
E) you can't fool me, all stars reach the red giant stage in roughly the same number of years
The stars which they should bet on is D) a star of about 8% the mass of our Sun.
What is a Star?
This refers to the astronomical object which is very far away in the galaxy and and of which the closest star to the Earth is in fact the Sun.
With this in mind, we can see that the students are making bets about the time different stars will take to evolve and want to know which star will become a red giant first so they should bet on a star of about 8% the mass of our Sun.
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Knowing the direction of heat flow, explain why if you leave a hot bowl of soup out in the open on the countertop, it eventually gets cold. Where is the heat going?
The heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.
Where does the heat go?We know that when two bodies of different temperatures there will be a flow of heat between the objects, from the hotter one to the colder one.
In this case, we have the bowl of soup as the hot object, and the ambient (the countertop, the air surrounding the bowl, etc) itself will be the cooler object.
Then the heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.
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The parenting style that can be described as restrictive and controlling is called __________. a. authoritarian b. permissive c. neglectful d. authoritative please select the best answer from the choices provided a b c d
The parenting style that can be described as restrictive and controlling is called authoritarian.
What is authoritarian?
The rejection of political plurality, the use of strong central power to maintain the political status quo, and reductions in the rule of law,
The separation of powers and democratic voting characterize authoritarianism.
Many typologies of authoritarian systems of administration have been developed by political scientists.
Authoritarian governments can be autocratic or oligarchic, and they can be founded on party or military authority.
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When does sound become damaging to the human ear?
Use the drop-down menus to complete the statement. if an electric circuit has 0 a of current running through it, then the must be .
If an electric circuit has zero Ampere (0A) of current running through it, then the voltage must be zero.
What is ohm's law?At constant temperature, Ohm's law says that the current flowing through an electric circuit is directly proportional to the voltage
Also, the current flowing through an electric circuit is inversely proportional to the resistance in the electric circuit.
This means that the magnitude of voltage (potential difference) is significantly reliant on the value of current flowing through an electric circuit.
This formula expresses Ohm's law mathematically.
V=IR
Where:
V is the voltage is measured in volts.
I denote the current in amperes.
R denotes the resistance in ohms.
Finally, if an electric circuit has zero ampere (0A) of current flowing through it, the voltage must also be zero.
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Answer:
voltage, zero
Explanation:
Pure substances can be made of atoms that are attracted to each other or atoms that are not attracted to each other. Which type of pure substance can create elaborate structures? (1 point)
Atoms that are attracted to each other because the bonds that form between them can support the creation of the structure.
Atoms that are attracted to each other because they will mix together to form a mixture with a different structure.
Atoms that are not attracted to each other because they will form bonds with each other and create a larger structure.
Atoms that are not attracted to each other because they will stay still and end up laying on top of each other.
Answer: atoms that are attracted to each other because the bonds that form between them can support the creation of the structure
Explanation:
What two forces propel the acceleration of change in human societies today?
Answer:
Collective behavior and social movements
Explanation:
Social movements are a collective behavior but are organized efforts and goal driven. It can range from local to national and can even reach globally. Groups that are behind social movements usually want to either create or resist social, political, economic, or cultural change.
The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.
What are fossil fuels?Fossil fuels are obtained beneath the earth's crust, which is formed due to buried plants and animals. The excessive heat under the earth crust heats the plants and animals.
The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.
Hence, the use of fossil fuels such as coal, oil, and natural gas, and technical advancements are two forces that propel the acceleration of change in human societies today
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Jessie hits a foul ball
straight up in the air
during a softball game.
Assuming all energy is
conserved, at what height
did the 3 kg ball travel if it
had a velocity of 11 m/s?
Answer:
GPE=(3*11^2)/2
(3*121)/2
363/2
GPE=181.5J
Explanation:
Why does the law of conversion of mass make sense?
Explanation:
If u mix 1g of salt with 100 ml of water, both dissolves but at the same time the mass of the solution increases.
According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction
Answer:
The law of conservation of mass was crucial to the progression of chemistry, as it helped scientists understand that substances did not disappear as result of a reaction as they may appear to do; rather, they transform into another substance of equal mass.
Explanation:
Is it possible For dogs to be gray
Answer:
Yes, it is possible for dogs to be grey
Explanation:
Whippets are gray and they are a type of dog
Answer: Like humans, dogs tend to go gray as part of their natural aging process.
Explanation: Just like us, humans, dogs tend to go gray as part of their natural aging process. And just like us, as dogs get older, the pigment cells responsible for color (specifically, melanin) stop being produced; this causes the strands to come out at a lighter shade, like gray or white.
Hopes this helps you out!
Have a nice week!
Blue, green, and red are _______ colors of light.
Answer:
the answer is white they combine to give white
Answer:
they are primary colors of light.
(pls don't delete this answer because I am just trying to help)
The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba
Answer:
The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba
Explanation:
The potential difference across the terminals of a battery is `8.4 V` when there is a current of `1.50 A` in the battery from the negative to the positive terminal. When the current is `3.50 Air`, the reverse direction, the potential difference becomes `9.4 V`. <br>(a) What is the internal resistance of the battery? <br>(b) What is the emf of the battery?