For two planets orbiting a star in a distant galaxy, having the first semimajor axis of 150 x 10^6 km, the period of the second plane is mathematically given as
T=2.2earth year
What is the period of the second planet?Generally, the equation for the time period is mathematically given as
[tex]T^{2} \appox a^{3}[/tex]
Therefore, for planet one
[tex]1^2\approx (150 x 10^6)^3[/tex]
In conclusion, For planet 2
T^2=(250/150)^3
T=√4.632
T=2.2earth year
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The period of the second planet for two planets circling a star in a faraway galaxy with a first semimajor axis of 150× 10⁶ km. The time period of the planet will be 2.2 earth years.
What is the time period of the revolution?The time period of the revolution is the time required to complete one revolution. It is guven by T. It is measured in seconds.
The equation of the time period is found as;
[tex]\rm T = \frac{250}{150} ^3 \\\\ T= \sqrt{4.632} \\\\ T=2.2 \ earth \ year[/tex]
Hence the time period of the planet will be 2.2 earth years.
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One square megameter is equal to 1. 0×106 square kilometers. How many square megameters are in 4,000,000 square kilometers?
Answer:
One has 1E6 km^2 / MM
4E6 km^2 / (1E6 km^2/MM) = 4 MM or 4 megameter
In 4000,000 square kilometers, there are 4 square megameters if the one square megameter is equal to 1. 0×106 square kilometers.
What is unit conversion?It is defined as the conversion from one quantity unit to another quantity unit followed by the process of division, and multiplication by a conversion factor.
We have:
One square megameter = [tex]1\times10^6[/tex]
Let's suppose the x square megameters in the 4,000,000 square kilometers
Then x can be found as follows:
[tex]\rm x = \frac{4,000,000}{1\times10^6}[/tex]
x = 4 square megamters
Thus, in 4000,000 square kilometers, there are 4 square megameters if the one square megameter is equal to 1. 0×106 square kilometers.
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What does the area of an acceleration time graph represent?
The area under the acceleration time graph represents change in velocity
The graph is plotted with acceleration on the vertical axis and time on the horizontal axis. The area under such graph represents change in velocity
The area of an acceleration- time graph represents the change in velocity. The pace at which a body's velocity varies is represented by acceleration, which is a vector quantity.
What is acceleration?The rate of change of velocity with respect to time is known as acceleration. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.
The formula for acceleration is;
[tex]\rm a = \frac{v-u}{t}[/tex]
u is the initial speed
v is the final speed
t is the time interval
a is the acceleration of a ball
Hence the area of an acceleration- time graph represents the change in velocity.
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In what type of system is mechanical energy lost to its surroundings?
A. internal
B. external
C. closed
D. open
help.
Answer:
If you consider systems as internal, external, or open then energy can only be exchanged between systems that are classified as -
(D) open
For instance if you want to classify the work done in lifting a bucket of water from a well, then this is an internal system as opposed to a system where you would have to consider the work done on the earth and its surrounding stars.
A ray of light makes an angle of 25° with the normal to a plane mirror. If the mirror is turned through 6. 0°, making the angle of incidence 31°, through what angle is the reflected ray rotated?
The reflected ray of a ray of light that makes an angle of 25° with the normal to a plane mirror and its is turned through 60°, making the angle of incidence to be 31° is rotated through 12°.
What is reflection?Freflection can be defined as the turning back of a ray of light when its strikes a plane's surface.
There are 2 laws of reflection
Laws of reflection(1) The first law of reflection states that the incident ray the reflected ray and the normal all at the point of incidence lie in the same plane
(2) The second law of reflection states that the angle of incident is equal to the angle of reflection.
From the question, if the incidence ray is rotated through 6°, then the reflected ray is rotated through 12°
Hence, The reflected ray is rotated through 12°.
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The reflection resulting in a 31° angle of incidence and the angle is the reflected ray rotated will be 12°
What is the law of reflection?The law of reflection specifies that upon reflection from a downy surface, the slope of the reflected ray is similar to the slope of the incident ray.
The reflected ray is consistently in the plane determined by the incident ray and perpendicular to the surface at the point of reference of the incident ray.
When the light rays descend on the smooth surface, the angle of reflection is similar to the angle of incidence, also the incident ray, the reflected ray, and the normal to the surface all lie in a similar plane.
As a result, the reflected light is rotated by 12°.
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A solid cylinder with diameter 20cm has an angular velocity of 10m/s and angular momentum of 2kgm^2/s. What is its mass?
Hi there!
Recall the equation for angular momentum:
[tex]L = I\omega[/tex]
L = Angular momentum (kgm²/s)
I = Moment of Inertia (kgm²)
ω = angular velocity (rad/s)
We know that the Moment of Inertia of a solid cylinder is equivalent to:
[tex]I = \frac{1}{2}MR^2[/tex]
M = mass (kg)
R = radius (m)
Plug in the givens to solve for the moment of inertia. Remember to divide the diameter by 2 for the radius, and to convert to meters.
[tex]r = \frac{d}{2} = 20/2 = 10 cm \\\\10 cm = 0.1 m[/tex]
[tex]I = \frac{1}{2}M(0.1^2) = 0.005 M[/tex]
We can rearrange the equation of angular momentum to solve for mass.
[tex]L = 0.005M * \omega\\\\\frac{L}{0.005 \omega} = M \\\\M = \frac{2}{0.005(10)} = \boxed{ 40 kg}[/tex]
please solve this as fast as you can
B
The combustion of the fuel in the helicopter is chemical energy. The vertical change in height is the result of kinetic energy. Because the helicopter is hovering in the air, it has gravitational potential.
Answer:
this would be B friend :)
Explanation:
2. What would be the effect on your body if you did not have kidneys? Page
112
A. My body would not absorb nutrients.
B. Waste would collect in the blood and become toxic
C. I could not eat gluten
D. Saliva could not be produced
Answer:
b
Explanation:
the kidney eliminates waste from the blood hence no kidney will result in accumulation of waste
What are the seasonal changes in the weasel in florida and the weasel in wyoming
Answer:
The differences between the Florida's weasel and in Wyoming's is that I can see that in Wyoming it has a lot of snow so Wyoming's weasel fur is more thicker than Florida's weasel.
Explanation:
Overmore, in Florida's weasel the weasel's fur is much more less then Wyoming's weasel's fur. Subsequently, their fur color is very different. In Wyoming's weasel fur, it's white fur help them blend in the snow. In Florida's weasel fur, it's brown and help blend in the grass(soil).
Weasels are small animals with long tail. Their diet will change in each seasons and will causes consecutive changes in body weight also.
What is seasonal change?The changes occurs in a living body or in a material with respect to different seasons is called seasonal changes.Weasels have coats that change from light brown to white in the winter. They are also known as ermines or short-tailed weasels.
In both the spring and the fall, the hue of their bodies changes, starting at their belly and moving outward. Long-tailed weasels and other species may also turn at least partially white.
The hue shift is caused by daylight duration rather than temperature. Weasels may therefore appear dazzling white in the winter against a brown environment before snow begins to fall. This makes them easy prey for larger predators like foxes, martens, and badgers during milder winters.
These little creatures eat a lot. Winter weasels forage often and consume roughly 40% of their body weight each day. Winter weasels have coats that change from light brown to white in the winter.
These pests, which can weigh as little as two ounces, are vicious and may attack prey that is larger than themselves. Weasels have excellent senses and are highly nimble. Because of this, they are difficult to catch and remove, both for humans and for predators.
Weasels are a sign of a healthy population of rodents or other prey on a property in the winter. The pests frequently reserve a portion of their meals for later.
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A body of mass 5kg is ejected vertically from the ground when a force of 600N acts on it for 0.1s.Calculate the velocity with which the body leaves the ground.
1200
Explanation:
F = m x (v / t)
v / t = F / m
v = (F / m) / t
v = (600 / 5) / 0.1
v = 120 / 0.1
v = 1200 m / s
If the barge is made out of 4.8- cm -thick steel plate on each of its four sides and its bottom, what mass of coal can the barge carry in freshwater without sinking
The maximum mass of coal that the barge will carry in freshwater without sinking is 0.111 kg.
Volume of the bargeThe volume of the barge is calculated as follows;
V = L³
V = (4.8 cm)³
V = 110.6 cm³
Density of the bargeFor the barge to float in freshwater, its density must be less or equal to density of water.
density(barge) = density(water)
density(barge) = 1 g/cm³
Maximum mass to be carried by the barge without sinkingmass = density x volume
mass = 1 g/cm³ x 110.6 cm³
mass = 110.6 g
mass = 0.111 kg
Thus, the maximum mass of coal that the barge will carry in freshwater without sinking is 0.111 kg.
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A brass ring of diameter 10. 00 cm at 14. 3°c is heated and slipped over an aluminum rod of diameter 10. 01 cm at 14. 3°c. Assume the average coefficients of linear expansion are constant
Temperature for combination be cooled to separate the brass ring of diameter 10.00 cm at 14.3°c and an aluminum rod of diameter 10.01 cm at 14.3°c is -204.7° C, which is not attainable.
What is linear expansion?The linear expansion is the expansions of metal when they are heated and their length is changed along one direction.
A brass ring of diameter 10. 00 cm at 14. 3°c is heated and slipped over an aluminum rod of diameter 10. 01 cm at 14. 3°c. Assume the average coefficients of linear expansion are constant
(a) To what temperature must the combination be cooled to separate the two metals?
To find the temperature, use the following formula,
[tex]T=T_o+\dfrac{d_o^A-d_o^B}{\alpha _Ad_o^A-\alpha _Ad_o^B}[/tex]
Put the values,
[tex]T=14.3+\dfrac{10.01-10}{(19\times10^{-6})(10.01)-(24\times10^{-6})(10)}\\T=-204.7^o C[/tex]
Thus, temperature for combination be cooled to separate the brass ring of diameter 10.00 cm at 14.3°c and an aluminum rod of diameter 10.01 cm at 14.3°c is -204.7° C, which is not attainable.
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Your friend phred says ""i decided to make one of those online personality tests as a project in my psychology class. how hard can it be?"" part a: explain whether or not phred should use the following personality theories as a basis for his online personality test. • psychoanalytic perspective• humanistic theory• trait theory
Fredd must use the trait theory for the online personality tests because it is based on distinctive features.
What is the trait theory?The trait theory is a model that states people have certain basic personality traits which are distinctive features.
The trait theory is always based on the strength of these basic human trait characteristics.
The trait theory is based on three types of features capable of being used to describe personality, which include stability, consistency and individual differences.
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A current of 5. 0 amperes is passing through a piece of wire. Determine how long it takes for 30 coulombs of charge to pass through this wire
The time taken for the charge to pass through the cross-section of the wire is 6.0s.
Given the data in the question;
Current; [tex]I = 5.0A[/tex]
Charge; [tex]Q = 30C[/tex]
Time; [tex]t = \ ?[/tex]
CurrentCurrent is simply the rate of flow of charged particles i.e electrons caused by EMF or voltage.
If a charge passes through the cross-section of a conductor in a given time, the current I is expressed as;
[tex]I = \frac{Q}{t}[/tex]
Where Q is the charge and t is time elapsed.
We substitute our given values into the expression above to determine the time it took the charge to pass through this wire.
[tex]I = \frac{Q}{t}\\ \\5.0A = \frac{30C}{t} \\\\t = \frac{30C}{5.0A} \\\\t = 6.0s[/tex]
Therefore, the time taken for the charge to pass through the cross-section of the wire is 6.0s.
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The time taken by 30 coulombs of charge to pass through this wire is 6 seconds.
What is current?The pace at which electrons flow past a point in an electrical circuit is referred to as current.
Current is the ratio of charge and time. Given that the current is equal to 5.0 Amp, while the charge is equal to 30C. Therefore, the time will be equal to,
[tex]I=\dfrac{Q}{t}\\\\5 =\dfrac{30}{t}\\\\t = 6\rm\ sec[/tex]
Hence, the time taken by 30 coulombs of charge to pass through this wire is 6 seconds.
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Please help, question is the picture.
Answer:
Mirror angle:
0°
25°
50°
Angle of incidence (θi):
0°
25°
50°
Angle of reflection (θr)
0°
25°
50°
Explanation:
The mirror angle is the same as the angles of incidence and reflection.
Brainlist Pls!
Which of the following is an example of the Doppler effect?
A. Two identical musical instruments being played next to each other will produce a sound twice as loud as if only one were played.
B. The siren of a police car sounds different when the car is coming toward you than it does when it passes you.
C. A hiker shouts "hello" into a canyon and hears it repeated back several times before it fades away.
D. Vibrations from a tuning fork pass through the air and cause a nearby dish of water to produce ripples of the same frequency.
b is your answers in this thread
Which choice most accurately traces the flow of electrons in the circuit?
this is wrong
Electrons move counterclockwise from side B of the battery to side A of the battery through each lightbulb.
Electron flow out of the negative terminal, through the circuit and into the positive terminal of the source is accurate about Electron flow.
What is electron flow?Electron flow is the current produced by the movement of free electrons moving along a positive terminal; the direction of electron flow is opposite to that of current.
Electron flow out of the negative terminal, through the circuit and into the positive terminal of the source.
Therefore, Electron flow out of the negative terminal, through the circuit and into the positive terminal of the source is accurate about Electron flow.
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A direct current of 3.0 A flows through a circuit consisting of a battery and a 6.0 A resistor. Calculate the potential difference across the resistor. a
Question :-
A Direct Current of 3.0 A flows through a Circuit consisting of a Battery and a 6.0 Ohm's Resistor. Calculate the Potential Difference across the Resistor .Answer :-
Potential Difference is 18 Volt's .Explanation :-
As per the provided information in the given question, we have been given that the Current of the Device is 3.0 Ampere . The Resistance is given as 6.0 Ohm's . And, we have been asked to calculate the Potential Difference .
As we know ,
V = I RWhere ,
V denotes to Potential DifferenceI denotes to CurrentR denotes to ResistanceTherefore , by Substituting the given values in the above Formula :-
[tex] \sf {\dag \: \: \: Potential \: Difference \: = \: Current \: \times \: Resistance} [/tex]
[tex] \sf {\Longrightarrow \: \: \: \sf Potential \: Difference \: = \: 3.0 \: \times \: 6.0} [/tex]
[tex] \sf {\Longrightarrow \: \: \: \sf Potential \: Difference \: = \: 3 \: \times \: 6} [/tex]
[tex] \bf {\Longrightarrow \: \: \: \bf {Potential \: Difference \: = \: 18 \: }} [/tex]
Hence :-
Potential Difference = 18 Volt's .[tex] \underline {\rule {210pt}{4pt}} [/tex]
Additional Information :-
[tex] \Longrightarrow \: \: \: \sf {Voltage \: = \: Current \: \times \: Resistance} [/tex]
[tex]\Longrightarrow \: \: \: \sf {Current \: = \: \dfrac {Voltage}{Resistance} } [/tex]
[tex]\Longrightarrow \: \: \: \sf {Resistance \: = \: \dfrac {Voltage}{Current} } [/tex]
[tex] \underline {\rule {210pt}{4pt}} [/tex]
Note :-
Kindly Scroll the Screen from Right to Left for Better View .In one to two sentences, describe the relationship between harmonics and resonance frequency in a piano.
Most vibrating things have several resonant frequencies, and musical instruments often vibrate at harmonics of the fundamental frequency. An integer (whole number) multiple of the fundamental frequency is defined as a harmonic.
In a Piano the relation between harmonic and resonance frequency is n_{1} : n_{2} : n_{3} = 1:2:3.
What is harmonic and resonance ?"It is wave having frequency which is multiple integral of the fundamental frequency. The fundamental frequency is called first Harmonic. If a body starts vibration under impact of external vibrational force , is called Resonance. Since a Piano can produce all type of frequencies due to resonance therefore it produces melodious sound. Hence relation between harmonic and resonance frequency is n_{1} : n_{2} : n_{3}= 1:2:3."
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Radio galaxies have twin radio jets that emanate from a central core. An astronomer
finds a radio galaxy whose frequency is 20 MHz. What wavelength of radio waves
does the galaxy emit?
The wavelength of the radio waves emitted by the radio galaxies which have twin radio jets that emanate from a central core is determined as 15 m.
Wavelength of the radio wavesThe wavelength of the radio waves is the distance traveled by the radio waves. The magnitude of the wavelength is determined from the ratio of speed of radio waves to the frequency of the radio waves.
v = fλ
where;
v is the speed of the radio wavesf is the frequency of the radio wavesλ is the wavelength of the radio wavesRadio wave is an example of electromagnetic radiation, and it travels at the same speed as light (3 x 10⁸ m/s).
λ = v/f
λ = (3 x 10⁸ ) / (20 x 10⁶)
λ = 15 m
Thus, the wavelength of the radio waves emitted by the galaxy is 15 m.
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A net constant force of 1500 n gives a toy rocket an acceleration of 2. 5 m/������ 2. What is the mass of the rocket?
Answer:
600Kg
Explanation:
Force= mass × acceleration
mass= 1500/2.5
600kg
The mass of the rocket will be 600 kg.In the International System of Units (SI), the kilogram is the unit of mass.
What is mass?Mass is a numerical measure of inertia, which is a basic feature of all matter. It is, in effect, a body of matter's resistance to a change in speed or position caused by the application of a force.
In the International System of Units (SI), the kilogram is the unit of mass.
The given data in the problem is;
The net constant force is, F= 1500 N
The acceleration is,a=2. 5 m/s²
The mass of the rocket is,m=?
[tex]\rm F= mass \times acceleration \\\\ m = \frac{F}{a} \\\\ m= \frac{1500}{2.5}\\\\ m = 600 \ kg[/tex]
Hence the mass of the rocket will be 600 kg.
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Infrared, ultraviolet and visible light are all part of the electromagnetic spectrum. The basic difference between them is their.
Answer:
The basic difference is wavelength (frequency)
ultraviolet < visible < infrared where the visible spectrum lies at
4000 - 7000 Angstroms = 400 - 700 millimicrons (10^-9 meters)
Tjhe shorter wavelengths (ultraviolet) carry more energy / photon
Plsss help with this, will give brainliest!!!
Answer:
c
True
True
False
True
**
metals, non-metal, high, lower
Explanation:
Money functions primarily as a medium of
a unit of
and a store of value.
.
Answer:
buying and selling goods and services. and exchange account
Explanation:
:)
Answer:
when money is used to intermediate the exchange of goods and services
What is the molarity of 3 moles of nacl in 12 liters of water
Answer:
your mom g
Explanation:
DRACO SEASON WITH THE BOOK BAG
A plot of the maxwell distribution for the same gas against temperature shows that.
If an electron, moving from east to the west, enters a uniform magnetic field what is the direction of the magnetic field
Answer:
The electron moves undeflected through the field
2. A spring has a spring constant of 80 N∙m−1. What is the force required to (a) compress the spring by 5 cm and (b) expand the spring by 15 cm?
Please show all your work.
#a
5cm=0.05mForce:-
F=-kxF=-80(0.05)F=-4N#b
15cm=0.15mForce:-
F=-kxF=-80(0.15)F=-12Nstate ohm's law and prove V=ir
Answer:
Ohm’s law states that the current flowing through a conductor is directly proportional to the potential difference ( Voltage ) between the terminals of the conductor, provided that, factors such as the temperature of the conductor is kept constant
V = IR, where R is the proportionality constant.
R = resistance (measured in ohms)
V = voltage (measured in volts)
I = current (measured in amps)
Choose all the answers that apply.
The United States
launched the first man into space
built the first space station
sent the first animal into space
was the first country to send a person to the moon
successfully landed å spacecraft on the moon
Answer:
launched the first man into space
was the first country to send a person to the moon
successfully landed å spacecraft on the moon
Sound can't travel through a
Question 4 options:
A. liquid.
B. vacuum.
C. solid.
D. gas.
Answer:
Vacuum
Explanation:
Sound waves can travel through any medium, such as a solid, a liquid, or a gas. However, sound doesn’t travel through a vacuum, which is why sounds can't be heard in outer space.
PF