Answer:
One of the indirect proofs that orbits change is actually in the growth of our own teeth when we were children. our teeth are some of the most basic, and primitive
parts of our bodies. They grow on a 9 day cycle, which was an ancient full moon to full moon cycle when the Earth and the Moon were a lot smaller, and closer together, and the co-orbital period was only 9 days, not the 29.5 days that it is currently.
So Given any two " Planets " that co-orbit a common gravitational center, the larger planet will grow larger far faster than the smaller planet, and the larger planet will accelerate the smaller planet to a higher orbit with a longer period, and decelerate itself to a lower orbit with a longer period, and the absolute value of the center to center distance will increase, and the orbital period will increase. The two orbs and their common gravitational center will remain co-linear through out the gradual growing and changing process.
This is an important process for the enlargement of the solar system as time passes, and an important process for larger galaxies as they attract and merge with smaller galaxies.
All of the planets grow larger at an accelerating rate, and thus systems spiral outward concentrating mass into larger and fewer galaxies, solar systems, and planet - moon systems.
In a gamma decay process __________.
A. a high-energy electron is released
B. a product is a positron
C. a parent nuclide was in an excited state
D. a high-energy alpha particle is produced
Explanation:
D.
hope it's help
hi I'm new user
Answer:
D.
Explanation:
The answer should be D. Cause it makes more sense and the gamma decay process it goes from Unstable to stable.
I apologize if it is incorrect-
I hope it helps! Have a great day!
Anygays-
5. How much time does it take for a bird flying at a speed of 45 kilometers per hour to travel a
distance of 1800 kilometers
Answer:
[tex]40h[/tex]
Explanation:
Use the velocity formula to solve
[tex]v = \frac{d}{t}[/tex]
In this question, you are given velocity [tex]v = 45km/h[/tex], and you are given a distance, [tex]d = 1800km[/tex]. Time in this question is what you'll need to find.
Start by rearranging the velocity formula, to isolate for t.
[tex]v = \frac{d}{t}[/tex]
Start by multiplying both sides by t
[tex]v(t) = \frac{d}{t}(t)\\\\vt = d[/tex]
Then divide both sides by v.
[tex]vt\frac{1}{v} = d/v\\ \\t = \frac{d}{v}[/tex]
Now that you've isolated for time, sub in your values and calculate.
[tex]t = \frac{d}{v} = \frac{1800km}{45km/h} = 40 h[/tex]
The gravitational pull of the sun is greatest in our solar system because it...
A. is the brightest
B. has the greatest mass
C. has the greatest magnetism
Answer:
B. has the greatest mass
Explanation:
mass & distance affect pull
grativy affects speed & shape of orbit of the planet
quiziz
friction causes kinetic energy to be converted into
A. Potential energy
B. Thermal energy
C.mechanical energy
D. Electrical energy
Which one is it pls help me
Answer:
Thermal Energy
Explanation:
When friction acts between two surfaces that are moving over each other, some kinetic energy is transformed into heat energy. Otherwise known as thermal energy.
A car of mass 10.0 ks traveling at 5.00 m/s comes to rest due to friction after traveling 20.0 m. What is the work done on the car by the friction?
A. –125 J
B. –50 J
C. 50 J
D. 125 J
The work done on the car due to friction is -125 J.
What is workdone?Work is said to be done when a force moves an object through a certain distance.
To calculate the workdone on the car by friction, we use the formula below
Formula:
W = m(v²-u²)/2.......... Equation 1
Where:
W = Work done due to fricionm = mass of the carv = Final velocityu = Initial velocityFrom the question,
Given:
m = 10 kgv = 0 m/su = 5 m/sSubstitute these values into equation 1
W = 10(0²-5²)/2W = 5(-25)W = -125 JHence, The work done on the car due to friction is -125 J.
Learn more about work done here: https://brainly.com/question/21854305
what the equation for speed?
Answer:
Speed Formula:
[tex]s = \frac{d}{t} [/tex]
A police car is asked to overtake a red sedan that is 16 km ahead of it on the freeway. The red sedan is traveling at 80 km/hr and the police car travels at 100 km/hr. When will the police car overtake the sedan?
Answer:
S = v0 t + 1/2 a t^2 a = 0 seems given in the problem
Vp t = Vr t + 16
both travel for time t but the police car is going faster and travels 16 km farther
t (Vp - Vr) = 16
t = 16 km / (100 - 80) km/hr
t = 16 / 20 hr = 4/5 hr = 48 min
CAN ANYONE HELP ME???????????
Answer:
D -- 12
Explanation:
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!
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Answer:
..........................................................
Explanation:
Which of the following best describes how a climate change affects the organisms in a certain environment? (2 points) Group of answer choices They might have more resources that help them survive. The will move to a new location where resources are available. They will struggle to survive due to reduced space. They might adapt, move to new place, or struggle to survive.
Answer:
they might adapt or move to a new place
Explanation:
A scientist adds different amounts of salt to 5 bottles of water. She then measures how long it takes for the water to boil. What is the responding variable in this experiment? 0 A. The kind of bottles used O B. The brand of salt used O C. The amount of salt added to the water O D. The time it takes for the water to boil
Answer:
d.the time it takes for the water to boil
Explanation:
it is because salt was added to the water.so the responding variable is the time taken to boil the water
If 2 waves collide with each other, would they cancel out, or merge?
Answer:
It depends on the velocity, if 1 wave is going faster than the other, it could eat the other wave and thus: Merge.
If they are the same speed they would cancel out, it would be like 2 trucks hitting each other.
Explanation:
If 2 waves crash at 15mph they would splash back and fall into the water. Think about boxers.
Answer: Destructive interference occurs when waves come together in such a way that they completely cancel each other out. When two waves interfere destructively, they must have the same amplitude in opposite directions.
Hope this helps :)
Pleaaaseee heeelp meeee
The symbol equation for combustion of a hydrocarbon is shown below. What number will go before the oxygen reactant when this equation is balanced?
Answer:
5 Oxygen , 3 Carbon dioxide and 3 water
Answer: the answer is 5
I REALLY NEED HELP!!!!
4. The pressure under the tyres of a tractor is 60 000 Pa. The pressed area is 0.5 m². How much
is the weight of the tractor?
Answer:
weight = 30000 Newton
Given:
pressure: 60,000 Paarea: 0.5 m²========================
[tex]\sf pressure \ (Pa)=\dfrac{force \ (N)}{area \ (m^2)}[/tex]
[tex]\dashrightarrow \sf \ 60 000 = \dfrac{force}{0.5}[/tex]
[tex]\dashrightarrow \sf \ force =60 000 *0.5[/tex]
[tex]\dashrightarrow \sf \ force =30000 \ N[/tex]
========================
Weight is the force due to gravity.
Thus, force = gravity = 30000 N
Questions #19 and 20:
Part 1 of 2: A Carnot engine has a power output of 122 kW. The engine operates between two reservoirs at 9 °C and 458 °C. How much thermal energy is absorbed each hour? Answer in units of J.
Part 2 of 2: How much thermal energy is lost per hour? Answer in units of J.
(1) The thermal energy absorbed by the Carnot engine is 7.15 x 10⁸ J.
(2) The thermal energy lost per hour by the Carnot engine is 2.75 x 10⁸ J.
Thermal energy entering the heat engineThe thermal energy absorbed by the heat engine is calculated as follows;
[tex]Q_h = \frac{P\Delta t}{1 - T_c/T_h}[/tex]
where;
Tc is the temperature of the cold reservoir = 9 + 273 = 282 KTh is the temperature of the hot reservoir = 458 + 273 = 731 K[tex]Q_h = \frac{(122,000) \times (3600)}{1 - \frac{282}{731} } \\\\Q_h = 7.15\times 10^8 \ J[/tex]
Thermal energy lost by the heat engineThe thermal energy lost per hour by the heat engine is calculated as follows;
[tex]Q_c = Q_h - P\Delta t\\\\Q_c = (7.15 \times 10^8 )\ - \ (122,000 \times 3600)\\\\Q_c = 2.75 \times 10^8 \ J[/tex]
Learn more about heat lost by Carnot engine here: https://brainly.com/question/25819144
If the same object was taken to each of the planets, where would it weigh the most and where would it weigh the least
Answer:
it way the most on jupiter and the least on mars
Explanation:
How much work is done by a constant horizontal 20-N force pushing a 50-kg block a distance of 10 m on a horizontal surface
Answer:
200 Nm
Explanation:
Work Done by Particular Force = Particular Force × Distance
Light with a wavelength of about 490 nm is made to pass through a diffraction grating. the angle formed between the path of the incident light and the diffracted light is 9.2° and forms a first-order bright band. what is the number of lines per mm in the diffraction grating? round your answer to the nearest whole number. lines per mm
The number of lines per mm in the diffraction grating is 326.
What is diffraction grating?A diffraction grating is a type of optical instrument obtained with a continuous pattern. The pattern of the diffracted light by a grating depends on the structure and number of elements present.
The given data in the problem is
[tex]\rm \theta[/tex] is the angle formed between the path of the incident light and the diffracted light = 9. 2°
λ is the wavelength of the light=490nm=4.9
N is the number of lines per mm in the diffraction grating=?
n is ordered = 1
The formula for the diffraction grating is;
[tex]n \lambda = d sin\theta \\\\ d = \frac{n \lambda}{sin \theta } \\\\ d = \frac{1 \times 4.90 \times 10^{-7}}{sin 9.2^0 } \\\\ d=3.06 \times 10^{-6} \\\\ d=3.06 \times 10^{-3} \ mm[/tex]
The number of lines per mm is found as;
[tex]\rm N= \frac{1}{d} \\\\ N= \frac{1}{3.06 \TIMES 10^{-3}} \\\\ N=326.8 /mm[/tex]
Hence the number of lines per mm in the diffraction grating is 326.
To learn more about diffraction grating refer to the link;
brainly.com/question/1812927
what is work done constant force
Answer:
W=Fd
This is the equation for it
Which types of interactions are negligible at standard temperature and pressure?
Explanation: a reduction in genetic diversity and discomfort for animals that have very exaggerated characteristics.
Can there be situation when velocity is constant but speed is not
Answer:
yes
Explanation:
as speed is a scalar quantity and velocity is a vector quantity. Which means speed only depends on the magnitude at which it travels but velocity depends on the speed at which travel and also the direction to where the object travels.
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an object from 10.0 meters. She knows it had 50.0 joules of potential energy. How much mass does it have?
Answer:
5N
Explanation:
Work done by a constant force is given by the following equation:
W=F⋅d⋅cos(θ)
where F is the applied force, d is the distance over which the force is applied, and θ is the angle between the force and displacement vectors.
In this case, the work is done by gravity, and as the object is assumed to fall straight down, θ=0^o.
We know that the force of gravity acting on an object can be expressed by FG=mg, and for an object which is not accelerating (e.g. a stationary object), this is equal to the object's weight.
We know d=10m,θ=0^o and W=50J, so we can solve for F to find the object's weight. ⇒F=Wdcos (θ) But cos (0^o)=1, so: F=Wd=50J10m=5N
lightnig can be described by which statement
Answer:
Lightning can be described by the flow of electric charges between the cloud and the ground.
Mass is measured in what unit and what tool is used
→ Mass is measured in(unit)
kilogram (kg) nd smaller mass in gram(g)→ The tool which is commonly used
triple beam balance electronic balanceweighing machinend many more......
__________________☃️[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]
Answer:
→ Mass is measured in(unit)
kilogram (kg) nd
smaller mass in gram(g)
→ The tool which is commonly used
triple beam balance
electronic balance
weighing machine
Explanation:
Tech A states that the PCM has the ability to learn from its actions and to use that information to make better decisions in
the future. Tech B states that it can also perform basic self-diagnostics on virtually all of the components in the system. Who
is correct?
Select one:
a. Tech A
b. Tech B
c. Both A and B
d. Neither A nor B
The statements made by the two technicians with respect to a process control module (PCM) are both correct: c. Both A and B.
What is PCM?PCM is an abbreviattion for process control module and it can be defined as a system that comprises a group of sensors, actuators, and other artificially intelligent processing equipment, which is operated as a single entity in an industry while providing its users (technicians) a desired result or response.
This ultimately implies that, a process control module (PCM) is designed and developed to do the folloing:
Perform basic self-diagnostics on the components in the system.Learn from its actions.Make better decisions in the future based on prior information.In conclusion, we can deduce that the statements made by the two technicians with respect to a process control module (PCM) are both correct.
Read more on process control here: https://brainly.com/question/26098164
Which of the following is the measure of average kinetic energy of the particles in a
substance?
А
Diffusion
B
Atmospheric Pressure
С
Temperature
D
Vapor Pressure
Answer:
The correct answer is C
Explanation:
Hope this helped :)
if im wrong pls tell me.
Cacharrerosdelaweb. Com 2019 12 que es keylogger html.
Los keyloggers son software o hardware que tienen la función de guardar la información que se escribe en el teclado de una computadora.
¿Qué es keylogger?Un keylogger es un término para referirse a un software o hardware que tiene la función de seguir y registrar todas y cada una de las pulsaciones que se hacen en el teclado de una computadora.
Generalmente, los keyloggers son formar ilícitas de obtener información confidencial del usuario de un computador sin su consentimiento. En los últimos años, se ha relacionado a los keyloggers con actividad digital delictiva debido a que es una de las formas que utilizan los criminales para robar información confidencial como cuentas bancarias.
Aprenda más sobre keyloggers en: https://brainly.com/question/17231901
How do you think the switch controls the flow of current to the light?
Answer:
A switch interrupts the flow of current in a circuit.
Explanation:
Two forces, F1 = -3000 N and F2 = +1500 N acts on a plane horizontally. The craft is moving with a constant velocity of -850 m/s. A third force F3 is also present in the scenario but is not indicated in the image below. Find the magnitude and direction of F3
Because the net force must be zero, we conclude that the magnitude of the force is 1500 newtons, and the direction is in the positive axis.
What is the magnitude and direction of the third force?
By Newton's laws, we know that if the net force applied to an object is different than zero, then the object is accelerated.
In this case, we know that the object moves with constant velocity, so there is no acceleration, meaning that the net force is equal to zero.
Then we must have:
F1 + F2 + F3 = 0N
Replacing F1 and F2 we get:
-3000 N + 1500N + F3 = 0
F3 = 3000N - 1500 N = 1500N
Then the magnitude of the force is 1500 newtons, and the direction is in the positive axis.
If you want to learn more about Newton's laws, you can read:
https://brainly.com/question/10454047
