What happens to the force of gravity between two masses if one mass is decreased?
A. It stays the same.
B.it fluctuates.
C. It increases.
D. It decreases.
Answers
Answer:
D. It decreases
Explanation:
Related Questions
a pennyfarthing is a style of a bicycle with a very large front wheel and a small real wheel, the cyclist who sit high above and behind the front wheel pedals this wheel directly the distance the pedals are turned input distance in one rotation is about 0.64 m. if the mechanical advantage of the pennyfarthing is 0.16 how far does the large wheel turn in one rotation.
Answers
Answer:
In one rotation, the large wheel turns 4m.
Explanation:
The given values are:
Input distance,
= 0.64 m
Mechanical advantage,
= 0.16
As we know,
⇒ [tex]Out. \ Distance = \frac{Inp. \ distance}{Mechanical \ advantage}[/tex]
On putting the values, we get
⇒ [tex]=\frac{0.64}{0.16}[/tex]
⇒ [tex]=4 \ m[/tex]
Hola puntos gratis !!!!!!!!!!!!!!!!!
Answers
Answer:
gracias
Explanation:
Hello.
Brainly points can be used for better situations, brainly points are experience that you receive by answering well.
The sound wave passes from the sea-water into the air. State what happens to; the speed of the waves
Answers
The speed of sound wave in water is much more greater than its speed in air, so when the sound wave passes from sea water to air, then it's speed decreases.
Si la rapidez lineal de un móvil que se desplaza con MCU se triplica y el radio se mantiene constante, entonces la fuerza centrípeta:
Answers
Answer:
F' = 9 F
Explanation:
The question says that, "If the linear speed of a mobile moving with MCU is tripled and the radius remains constant, then the centripetal force:"
The formula for the centripetal force is given by :
[tex]F=\dfrac{mv^2}r{}[/tex]
Where
m is the mass of the object
v is the velocity
r is the radius of path
If the linear speed us tripled, v' = 2v, r = constant, then the new centripetal force is given by :
[tex]F'=\dfrac{mv'^2}r{}\\\\F'=\dfrac{m(3v)^2}{r}\\\\=\dfrac{mv^2}{r}\times 9\\\\F'=9F[/tex]
So, the new force becomes 9 times of the initial force.
Describe the movement of molecules in an ice cube at the temperatures shown, and indicate whether the ice cube will change state.
Answers
Answer: The ice molecules expand and become stuck since the water is frozen and start to vibrate
Explanation:
According to the concept of thermal energy, as the temperature rises thermal energy increases and molecules start vibrating faster and ice changes it's state to water that is from solid to liquid.
What is thermal energy?Thermal energy is defined as a type of energy which is contained within a system and is responsible for rise in temperature.Heat is a type of thermal energy.It is concerned with the first law of thermodynamics.
Thermal energy arises from friction and drag.It includes the internal energy or enthalpy of a body of matter and radiation.It is related to internal energy and heat .It arises when a substance containing molecules or atoms are vibrating faster.
These vibrating molecules and atoms collide and as a result of which heat is generated in a substance , more the number of collision of particles , higher is the thermal energy.
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What is the gamma factor for an object moving at 0.5c?
A. 0.866
B. 0.707
C. 1.15
D. 1.41
Answers
Answer:1.15
Explanation:
Answer:
C. 1.15
Explanation:
We can calculate the gamma factor for an object moving at 0.5c, using the formula:
γ = 1/√(1 - v^2/c^2)
--------
where v is the velocity of the object and c is the speed of light.
Substituting v = 0.5c, we get:
γ = 1/√(1 - 0.5^2) = 1/√(1 - 0.25) = 1/√0.75 ≈ 1.155
--------
Therefore, the gamma factor for an object moving at 0.5c is approximately 1.155.
Convert the following into radians 90°, 30°, 45°, 180°
Answers
Answer:
90 degress -> radians= π/2
30 degress -> radians= π/6
45 degrees -> radians= π/4
180 degress -> radians= π
Explanation:
To convert degrees to radians, multiply the degree by π/180 and simplify.
Do you want robot referees in your favorite class?
Answers
Answer:
Sounds cool.. but what do they do?
Explanation:
What type of energy do not harm our environment?
Answers
Answer:
Explanation: Renewable energy is energy that has been derived from earth's natural resources that are not finite or exhaustible, such as wind and sunlight. Renewable energy is an alternative to the traditional energy that relies on fossil fuels, and it tends to be much less harmful to the environment.
how are the process of melting and freezing similar?
a. they are both processes where heat is released by a substance.
b. they are both processes that physically change a substance.
c. they are both processes that chemically change substance
d. they are both pressure where heat is absorbed by a substance.
Answers
Process of elimination for those feeling sus:
A is freezing, D is melting, C no chemical change takes place, still the same molecules of a substance.
Which of these statements partly define law?
A) Is about how something behaves in the natural world
B) is a possible answer to a scientific question based on research
C) is a widely excepted explanation that combine several hypothesis
D) involves asking a question and performing investigation
Answers
Answer:
D
Explanation:
im guessing here i hope it is correct and good luck
can anyone else finish the parts?
Answers
Answer:
2. wavelength
3. Crest
4. Rest
5. Trough
6. Amplitude
Explanation:
20 points and brainlist!!!
Write about a situation where it might be more useful to describe motion using velocity instead of speed.
Answers
Answer:
If you are going someplace, you might want to tell which way you were going and how fast for traffic.
Explanation:
Erosion and physical weathering is a ________________ force that affects land formation
Answers
Answer:
Any choices for the blank?
The sound from an insect is produced when it vibrates its wings at an average rate of 500 vibrations per second:
(a) What is the time-period of the vibrations ?
(b) What is the frequency of the vibrations in hertz ?
(c) Can we hear this sound? Why or why not?
Answers
= (1/500) = 0.002 sec.
(b) The frequency of the vibrations in hertz is 500 Hz. Because 1Hz = 1 vibration/second. (c) We can hear this because it is in the range of 20Hz to 20,000Hz.Read more on Sarthaks.com - https://www.sarthaks.com/821303/the-sound-from-insect-produced-when-vibrates-wings-average-rate-500-vibrations-per-second
Two numbers are in the ratio 8 : 5. If 6 is added to each number, the ratio becomes
3:2.
Answers
Let the numbers be 8x and 5x
ATQ,
= 8x + 6/5x + 6 = 3/2
= 2(8x + 6) = 3(5x + 6)
= 16x + 12 = 15x + 18
= 16x - 15x = 18 - 12
= x = 6
Now, the numbers are:
8x = 8 × 6 = 485x = 5 × 6 = 30The duration between the emission of the sound from the echo reception is: t - 1.5 s. the distance between the observer and the sound receiver knowing that the speed of sound in the air is worth
V - 340 m/s is:
Answers
Answer:
. tt tt t t t t t t tt t tt t t jk j k j k j k j k jk k j k jk
What do scientists know about the future of the universe?
what dark matter is made of
why the expansion of the universe is accelerating
that stars will eventually burn out causing the universe to become cold and dark
that galaxies spin much slower than they should based on visible matter
Answers
Answer:
Gravity will cause a closed universe to collapse back on itself ending in the Big Crunch. scientific predictions about the future of the universe are based on the idea that the effect of gravity on matter determines the shape of the universe which then determines its future
Scientists know about the future of the universe and that stars will eventually burn out causing the universe to become cold and dark. Therefore, option C is correct.
What is the future of the universe?All of the stars and galaxies will ultimately run out of energy as the universe expands, and the universe will cool down, resulting in the "Big Chill." It will take an indefinite amount of time for gravity to stop the universe's expansion if its density is equal to the critical density.
There won't be any other galaxies visible outside of our own. The universe will then actually become cold, dark, and empty once the stars have burned out.
Scientists know about the future of the universe and that stars will eventually burn out causing the universe to become cold and dark. Therefore, option C is correct.
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This object is located 13.0 cm to the left of the lens and the image forms at 20.8 cm to the right of the lens.
What is the focal length of the lens?
Answers
Answer:
0.125 cm
Explanation:
1/f = 1/d¡ + 1/d。
Find the focal point
(13.0^-1 + 20.8^-1) = 0.125 m
Focal point = 0.125 m
The object placed in front of mirror forms an image on the opposite side of the mirror. The focal length of the lens is 0.125 m.
What is focal length?Focal length is the distance between the lens and the image sensor when the object is in focus.
The focal length can be find out by using lens maker formula.
1/f = 1/d¡ + 1/d。
1 / 13.0 + 1 / 20.8
f = 0.125 m
Thus, the focal length of the lens is 0.125 m.
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a rock of mass of 540 g in the air is found to have an apparent mass of 342 g when submerged in water (a) calculate the weight of the Rock given that the acceleration of the air g 10 m / s² to ignore the air resistance
Answers
Answer: 5.4 N
Explanation:
Given
mass of rock in the air is 540 g
Apparent mass of 342 gm when submerged in water
Weight of the rock is the product of mass and accleration due to gravity
[tex]\Rightarrow W=mg\\\Rightarrow 0.540\times 10=5.4\ N[/tex]
what type of galaxy Andromeda is??
Answers
Answer:
a spiral
Explanation:
It's the largest member of the Local Group of galaxies
Answer:
Barred spiral galaxy
A fisherman sees 7 wave crests go by in 10.0 s. The crests are 2.43 m apart. Find the period of the wave. (Unit = s)
Answers
Velocity of the wave is 1.7 m/s
Explanation:
As we know that the frequency of the wave is defined as the number of waves crossing a fixed point per second
So here we will have
Also we know that the distance between two consecutive crest or two consecutive trough is known as wavelength
So here the wavelength of the wave is given as
now we have
The wave period will be 1.42 s.
What is wave period?The time interval, expressed in seconds, separating two waves as they pass throughout a stationary point has been known as the wave period.
What is wave?A pulse seems to be a single disturbance, whereas a wave would be a persistent, repeated interruption of a medium.
Calculation of wave period
The frequency = 7 / 10 = 0.7 Hz
Wave period can be calculated by the formula:
Wave period = 1 / frequency
Put the value of frequency in above equation.
Wave period = 1 / 0.7
Wave period = 1.42 s
Therefore, the wave period will be 1.42 s
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Identify the vibrating media in three different
types of musical instruments.
Answers
Explanation:
Hole. Hole. Different notes can be played on the flute by blocking holes. ...
Drum skin. Drum skin. Hitting the bongo drum makes its tight elastic skin vibrate.
String. String. ...
Sound. hole. ...
Bow. Bow.
If a person applies the same amount of force to an object what would
accelerate faster? *
1. A rock
2. A basketball
3. Bouncy ball
4. House
Answers
Answer:
A rock because
Explanation:
Answer: HERE IS THE ANSWER SIR
Explanation: SO I BELIEVE IT WOULD BE A BASKETBALL THINK ABOUT WHEN YOU TRY TO PUSH A TABLE THATS PUTTING EXTRA FORCE BUT IF YOU WERE TO DO THAT TO A BASKETBALL IT WOULD ACCELERATE MUCH RAPIDLY THEN ALL THE OTHER OBJECTS I CONSTANTLY DO THE PROCESS OF ELIMNATION WITH ALL THE CHOICE AND I FIGURED OUT IT WAS A BASKETBALL. I HOPE THIS HELPED HAVE A NICE DAYY!!
Is bio, chem, or physics better?
Answers
PLEASE HELP! An object is placed at a distance of 18.0 cm to the left of a thin converging lens of focal length -10.0 cm. Where does the image form
Answers
Answer: 6.4
Explanation:
How can the negative charge be moved in order to cause both charges to have the same change in electric potential energy?
O It can be moved 0.04 m toward the positive plate.
O It can be moved 0.04 m toward the negative plate.
O It can be moved 0.01 m toward the positive plate.
O It can be moved 0.01 m toward the negative plate.
Answers
To cause both charges to have the same change in electric potential energy, the negative charge should be moved towards the positive plate, as electric potential decreases in the direction of electric field lines. Therefore, the correct option is to move 0.04 m toward the positive plate.
What is electric potential energy?Electric potential energy is the energy an electric charge possesses due to its position relative to other electric charges in an electric field. The electric potential energy of a charge depends on its charge, the strength of the electric field, and the distance between the charges.
What is the negative and positive plate?Negative and positive plates are typically used to refer to the electrodes in a capacitor. A capacitor is an electronic component that stores electric charge and energy in an electric field. In a capacitor, the positive plate is typically connected to the positive terminal of a power supply, while the negative plate is connected to the negative terminal.
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HOW TO DO THIS QUESTION PLEASE
Answers
answer
it's unreliable
Answer:
(a) It can be replenished as it is used.
Explanation:
A resource is "renewable" if using it does not diminish the supply. Solar power and wind power are supplied by the Sun. The use of solar power and/or wind power does not change the capacity of the sun to provide that power.
A renewable resource is one that can be replenished as it is used.
_____
Additional comment
For all resources, there is a finite supply available on Earth. The sun supplies about 1 kW per square meter. Using some of that for human purposes changes the amount or form available for other purposes—photosynthesis, weather, ocean currents, reflection back to space, and so on. Within the time scale of human existence, the supply is essentially non-diminishing. With large-scale use, planet-wide effects can be expected.
A pendulum is in a spacecraft to measure
acceleration during lift off. Before the launch, its period
is 6.5 X 10-3 s. At a point during lift off, its period is 3.1
X 10-3 s. What is the acceleration at this point?
Answers
Answer:
For small angles (✓ < 30 degrees), the period of a simple pendulum4can be approximated by: 3A radian is an angle measure based upon the circumference of a circle C =2⇡r where r is the radius of the circle. A complete circle (360 ) is said to have 2⇡ radians. Therefore, a 1/4 circle (90 )is⇡/2 radians.
Explanation:
You step onto a hot beach with your bare feet. A generated in your foot, travels through your nervous system at an average speed of 127 m/s. How much time does it take for the impulse, which travels a distance of 1.58m to reach your brain?
Answers
Answer: 12.44 millisecond
Explanation:
Based on the information given, to know the time taken for the impulse, which travels a distance of 1.58m to reach the brain will be:
Time taken = Distance/Speed
Time taken = 1.58/127
Time taken = 0.01244
Time taken = 12.44 millisecond.