Two solid spheres of same radius (R) and of same material are placed in such a way that their centres are 2R apart. The gravitational force between them is directly proportional to
Answers
In this particular case, the force is also inversely proportional to the square of their radii (R) since their centers are 2R apart.
The gravitational force between two solid spheres with the same radius (R) and made of the same material, placed with their centers 2R apart, is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
This can be described using Newton's law of universal gravitation:
F = G * (m1 * m2) / r^2
Where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the spheres, and r is the distance between their centers. In this case, r = 2R.
Since the spheres have the same radius and are made of the same material, their masses will be proportional to their volumes.
The volume of a sphere is given by the formula:
V = (4/3) * π * R^3
As both spheres have the same volume, their masses are equal (m1 = m2). Therefore, we can rewrite the gravitational force equation as:
F = G * (m^2) / (2R)^2
Here, m is the mass of each sphere. As you can see, the gravitational force between the spheres is directly proportional to the square of their masses and inversely proportional to the square of the distance between their centers.
Know more about the gravitational force
https://brainly.com/question/72250
#SPJ11
Related Questions
1. The transfer of heat by means of the movement of a substance is known as…
A. Conduction
B. Convection
C. Radiation
D. Transpiration
2). Which form of energy does a plant store when light is transformedduring photosynthesis?
A. Chemical energy
B. Thermal energy
C. Mechanical energy
D. Electrical energy
3.) telephones use electromagnets to change…
A. Electric currents to light waves
B. Electric currents to sound waves
C. Magnetism to light waves
D. Magnetism to sound waves
(( pleaaseee heelp meee))
Answers
Answer:
1 A 2 d 3 b. okjajsnsnzbsbsbsbsbExplanation:
okk
2. D
3.B
They are correct, Because these are all based on the questions to the answer
Ms. Howard's science class looked at the group of stars called the Big Dipper, They watched it in the early evening during fall and spring. This is what
they saw:
Fall- upright and low in the sky
Spring - upside down and high in sky
Why does the position of the Big Dipper change during the year?
O A Earth revolves around the Sun,
OB. The position of the Moon is different in the fall than in the spring.
O C. The Big Dipper is made of different stars in the fall than in the spring.
OD. The Big Dipper moves toward Earth in the fall and away in the spring.
Answers
The mass of a cube is 16cm and the volume is 8cm3. What is the density?
Answers
Answer:
the density is 2
Explanation:
mass divided by volume is density
16 divided by 8 is 2
The acceleration of a mass is 15 m/s^2 to the left, what is the mass of the object? answer with 2 sig figs
Answers
The mass of the object if the acceleration of a mass is 15 m/s^2 to the left is 1.27 kg
F = F1 + F2 + F3
F1 = - 8 N
F2 = 7 N
F3 = - 18 N
F = - 8 + 7 - 18
F = - 19 N
Negative symbol indicates that the force is acting towards the left.
F = m a
F = Force
m = Mass
a = Acceleration
a = - 15 m / s²
m = F / a
m = - 19 / - 15
m = 1.27 kg
Therefore, the mass of the object is 1.27 kg
To know more about Acceleration
https://brainly.com/question/12550364
#SPJ1
which detection method was used by the kepler mission?
Answers
Kepler discovered planets by using a tracking technique called transit. A transit occurs when, as seen from Earth, a planet crosses in front of a star. Transits of terrestrial-sized planets cause only a slight shift in the star's brightness compared to a larger planet.
This technique is based on the fact that a star's brightness will change marginally when an exoplanet transits in front of it. Astronomers can detect the existence of planets by tracking a star's brightness over time and measuring the minute brightness dips that take place when a planet transits across the star's disk. This method can also be used to determine a planet's size and orbital time. Astronomers must observe a star constantly for several weeks or months, depending on the planet's orbital period, in order to spot a transiting planet.
The Kepler mission used a photometer to simultaneously track a wide field of stars in order to increase accuracy. It was the most accurate exoplanet detector ever created, and the information it collected allowed scientists to discover thousands of new exoplanets. Astronomers can now find tiny exoplanets that are in their star's habitable zone and are comparable in size to Earth thanks to the Kepler project.
To know more about kepler:
https://brainly.com/question/28167962
#SPJ4
How does the strength of a magnetic field around a wire vary?
Answers
Answer:
By pointing one's right thumb along the direction of the current, the direction of the magnetic field can by found by curving one's fingers around the wire. The strength of the magnetic field depends on the current I in the wire and r, the distance from the wire.
Two balloons, one with a charge of 4.0 x 106 coulombs and the other with a charge of 8.2 x 106 coulombs, are kept 2.0 meters apart. What is the
electric force between the two balloons? (k = 9.0 x 109 newton-meter²/coulombs²)
OA 4.0 x 102 newtons
OB. 5.2 x 10¹² newtons
OC. 7.3 x 102 newtons
OD. 8.2 x 10
newtons
Answers
The electric force that is found between the two ballons that we have here are C. 7.3 x 102 newtons
How to solve for the electric forceElectric force, also known as Coulomb force, is a fundamental force that exists between charged particles. It is the force of attraction or repulsion between two charged objects, which is proportional to the magnitude of the charges on the objects and inversely proportional to the square of the distance between them.
The electric force is caused by the electric field that surrounds charged particles. When two charged particles are brought near each other, they interact with each other through their electric fields, and the resulting force can be attractive or repulsive, depending on the charges of the particles.
F = (4.0 × 10^-6 C x 8.2 × 10^-6 C x 9.0 × 10^9 Nm²/C²) / (2 m)²
= 295.2 x 10⁻³ / 4
= 7.38 x 10⁻² N
Read more on electric force here:https://brainly.com/question/21980164
#SPJ1
Which of the following settings describes a displacement vs. time graph that
looks like this?
Displacement
Time
Check all that apply
O A. Constant velocity
OB. Increasing velocity
I C. Zero acceleration
O D. Decreasing acceleration
I NEED HELP ASAP
Answers
Answer:
c and a
Explanation:
ape x
11. In the original Ghostbusters, when asked by Dr. Peter Venkman what would happen if they crossed the streams from their proton packs, Dr. Egon Spengler responded, "It would be bad." The same thing could reasonably be said about _________ Specifically, the reason for this is due to violation of the assumption of _____________
Answers
The same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.
Let us understand what these terms mean:
MulticollinearityIn statistical analysis, multicollinearity is the high correlation among predictors in a regression model. It is problematic because of its adverse effects on the model, including making it difficult to determine the effect of an independent variable, coefficients becoming insensitive to small changes in the model, and reducing the reliability of the model.
Independent PredictorsIn regression analysis, independent predictors are those variables that contribute to the prediction of the dependent variable or outcome, and their inclusion in the model improves the accuracy of the prediction of the model.
In a regression model, it is an assumption that predictors are independent, which means that the predictors have little to no correlation with each other. If this assumption is violated, it is known as multicollinearity.
Therefore, the same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.
Learn more about predictors from the given link:
https://brainly.com/question/32365193
#SPJ11
The maximum force of sliding friction between a 10 kg box and the concrete floor is 64 n. How much force should a be applied to the box to keep it moving at a constant velocity?.
Answers
The force that will move the box at constant velocity must be a little more than 64 N.
How does sliding friction work?The resistance that any two things produce when sliding against one another is known as sliding friction. As the force required to keep one surface moving along another surface, this friction is sometimes referred to as kinetic friction.
The coefficient of sliding friction is obtained from formula;
μ= F/R
Where;
F = frictional force
μ = coefficient of sliding friction
R = Normal reaction
It is important to remember that in order to move a body, a force must be applied that is larger than the frictional force that exists between the body and the surface. As a result, a force of slightly more than 64 N is required to move the box at a constant speed.
To know more about Sliding friction, visit:
https://brainly.com/question/11808898
#SPJ4
Thor deja caer su martillo de la torre Torre Stark que tiene 95 pisos, si al llegar el Mjolnir al piso han transcurrido 9.5 segundos. Determina: a) La velocidad con la que el Mjonir golpea el suelo
Answers
Answer:
La magnitud de la velocidad con la que Mjonir golpea el suelo es 93.2 m/s.
Explanation:
Podemos encontrar la velocidad con la que el martillo golpea el suelo usando la siguiente ecuación:
\( v_{f} = v_{0} - gt \) (1)
En donde:
\( v_{f}\): es la velocidad final =?
\( v_{0}\): es la velocidad inicial = 0 (lo deja caer)
g: es la gravedad = 9.81 m/s²
t: es el tiempo = 9.5 s
Al reemplazar los valores anteriores en la ecuación (1), tenemos:
\( v_{f} = 0 - 9.81 m/s^{2}*9.5 s = -93.2 m/s \)
El signo negativo se debe a que el vector velocidad está dirigido hacia abajo en el eje vertical (y).
Por lo tanto, la magnitud de la velocidad con la que Mjonir golpea el suelo es 93.2 m/s.
Espero que te sea de utilidad!
how long a boy will take to run round a square field of side ,35 if he run at the rate of 9km/hr
Answers
Answer: it will take 15 minutes
Answer:
It will take the boy 136 hours 11 minutes.
Explanation:
35 × 35 = 1225km is the area of the square.
Now find how long it will take the boy:
1225 ÷ 9 = 136.11
Which is 136 hours 11 minutes.
Solar radiation at the surface of the earth is about 700 W/m2. How much power is incident on a roof of dimensions 12.96 m by 20.43 m?
Answers
Our first step is to find out the area of the roof, which is:
\(A=12.96*20.43=264.7728m^2\)We can then obtain the power by multiplying it to the solar radiation:
\(P=264.7728*700=185340.96W\)Then, our final answer is P=185340.96W
When light passes from air into water at an angle of 60° from the normal, what is the angle of refraction? (40.6°)
Answers
Answer:
40.6°
Explanation:
The angle of refraction, when light passes from air into water at an angle of 60° from the normal, is 40.6°
What is Snell's law?It states that the ratio of sine of angle of incidence and angle of refraction is equal to the refractive index of second medium to the first medium.
sini/sinr =n₂ / n₁
Given, the light passes from air into water at an angle of 60° from the normal, the angle of incidence i = 60°, refractive index of air n₁ =1, refractive index of water n₂ = 1.333, then the angle of refraction is
sinr = sini x (n₁/n₂)
Plug the values, we get
sinr = sin60 x (1/1.333)
sinr = 40.6°
The angle of refraction is less than angle of incidence due to refraction.
Thus, the angle of refraction is 40.6°
Learn more about Snell's law.
https://brainly.com/question/10112549
#SPJ2
Un globo es inflado hasta obtener 1.5 atm, con un volumen de 500 cm³ a 273 K. Luego, es colocado en el frezzer ¿Cuál será su temperatura, con 1.2 atm y 300 cm³?
Answers
Respuesta: T2 = 131.04K
Explicación: Dado lo siguiente:
Presión, P1 = 1.5 atm = 1.5 × 760 = 1140 mmHg
Presión, P2 = 1.2 atm = 1.2 × 760 = 912 mmHg
Volumen, V1 = 500cm3 Volumen, V2 = 300cm3
Temperatura, T1 = 273K Temperatura, T2 =?
Usando la fórmula de gas combinada:
P1V1 / T1 = P2V2 / T2
Ingresando nuestros valores:
(1140 × 500) / 273 = (912 × 300) / T2
T2 × (1140 × 500) = 912 × 300 × 273
T2 = 74692800/570000 T2 = 131.04K
Imagine using brainly LOL COULDNT BE ME XD
Answers
Answer:
LOL! couldnt be me either bestieeeee
Answer:
-_-
Explanation:
i dont know What was XD??
Spectroscopy is used to help astronomers analyze and catalogue objects as they map the universe. One example of a particularly ambition project that began around 2000 is
Answers
Spectroscopy is indeed a valuable tool for astronomers as they map the universe. One particularly ambitious project that began around 2000 is the Sloan Digital Sky Survey (SDSS). This project utilizes spectroscopy to analyze and catalog celestial objects, providing crucial data for understanding the universe's structure and evolution.
Spectroscopy is a powerful tool used by astronomers to analyze the light emitted by objects in the universe, enabling them to determine their composition, temperature, and other characteristics. This information helps astronomers catalog and map the universe, providing valuable insights into its structure and evolution. One example of a particularly ambitious project that began around 2000 is the Sloan Digital Sky Survey, which used spectroscopy to create a detailed 3D map of the universe, helping astronomers better understand the distribution of galaxies and the large-scale structure of the cosmos.
To know more about Spectroscopy
https://brainly.com/question/14854785
#SPJ11
The boat's 'echo sounder' could not be used in an aeroplane to measure its heigh
above the ground unless it had been modified.
Answers
True, this is because the echo sounder that is applicable to boats cannot be used directly for airplanes
How does an echo sounder work?By sending out sound waves and timing how long it takes for them to bounce back, an echo sounder, sometimes referred to as a sonar, is a device frequently used in boats to gauge the depth of the water beneath the craft.
When a sound pulse from an echo sounder strikes a solid item in the water, such as fish, vegetation, or other objects, the signal is reflected back to the surface.
Learn more about echo sounders here:
https://brainly.com/question/1057435
#SPJ1
Pressure waves cause fluid located in the cochlea to be set in motion, causing vibration in the _________, which in turn activates the auditory receptors.
Answers
In the air, pressure waves that propagate as sound. If the sound reaches the ear, it passes through the auditory tube, where it is amplified by the eardrum and ossicles. Finally, the organ of Corti in the cochlea detects these noises and transmits them to the brain via nerve impulses.
How Pressure affect cochlea.The fluid in the cochlea vibrates as a result of pressure waves traveling from the stapes to the oval window. Depending on the sound frequency, these vibrations move the thin basilar membrane that is connected to the organ of corti, activating the hair cell receptors. Additionally, sound first passes through the auditory tube from the outer ear to the tympanic membrane or eardrum. However, the middle ear, not the inner ear, is where the ossicles are found not of the oval window, but transfer vibrations to the oval window.
Ear structure?The various tissues and structures that make up the ears aid in the processing of sound that is heard in the environment. Learn about the inner and outer ear, eardrum, eustachian tube, cochlea, and semicircular canals as well as how they work.
To know more about Ear, visit-
https://brainly.com/question/3535321
#SPJ4
What important role does each play in an exercise regiment?
Answers
Answer: There are five principles of fitness out of which two are overload principle and rest and recovery principle. Overload principle is one of the most important principle which tell that to gain and improve the fitness one should do the hard work.
Slowly and gradually the intensity and time of exercise are increased so that our body can adapt to the hard work. Overload principle plays an important role in improving the skills and improving performance during exercise and sports.
Rest and recovery principle is important to relax the body and release the stress that happens due to intense training like in case of weight lifting one day rest should be taken to repair and rebuild the muscles. This allows the body to encounter the fatigue and improve performance.
Explanation:
Consider a race between a sphere of mass M and radius R, and a ring of mass M and radius R. Both will roll without slipping over an inclined plane that is 2.00 high starting from rest. a. Which object will win the race
Answers
The ring will win the race down the inclined plane.
To analyze this situation, we can compare the rotational kinetic energy of the objects. The rotational kinetic energy for a rolling sphere is given by \((2/5) * M * R^2 * \omega^2,\) where M is the mass of the sphere, R is its radius, and ω is the angular velocity. Similarly, the rotational kinetic energy for a rolling ring is given by \((1/2) * M * R^2 * \omega^2\).
When both objects are released from rest and roll down the inclined plane without slipping, they will have the same linear velocity at the bottom of the incline due to conservation of energy. However, the ring has a higher rotational inertia than the sphere, resulting in a lower angular velocity.
Since the kinetic energy is the sum of translational and rotational kinetic energy, and the linear velocity is the same for both objects, the ring's lower rotational kinetic energy compared to the sphere allows it to convert more of its total kinetic energy into translational motion, giving it a higher speed at the bottom of the incline. Therefore, the ring will win the race.
To know more about inclined plane refer here
https://brainly.com/question/29360090#
#SPJ11
What is the difference between velocity and acceleration?
A.
Velocity describes an object's position and acceleration describes how fast it moves.
B.
Velocity is how fast an object moves and acceleration is the rate of change in velocity.
C.
Velocity is used to determine the magnitude of force acting on an object, and acceleration isn't.
D.
Velocity is a time-dependent property of an object, while acceleration is not.
Answers
Kerry drops her iPhone accidently as she is standing on an overview. How fast is the iPhone moving after 3s?
Answers
Answer:
really fast? xP
Explanation:
ASAP 20pts BRAINLIEST
Using the "Force versus Acceleration" graph, which mass is the largest?
A. Mass 1
B. Mass 2
C. Mass 3
Answers
Answer:
mass 3 has the least slope therefore the mass is the greatest.
Force is the product of mass and acceleration. Here the acceleration is constant for all bodies and force is different. The greater the force, greater will be mass. Thus, mass 1 is the largest.
What is force?Force is an external agent acting on a body to deform it or to change its state from motion or rest. There are different kinds of forces such as magnetic force, nuclear force, gravitational force etc.
According to Newton's second law of motion, the force acting on a body is the product of its mass and acceleration. Thus, greater the mass of the body, greater force is required to accelerate the body.
In the given figure the acceleration is increasing for all bodies, the mass which is associated with greater force is the largest. Here the greater force is associated with mass 1. Hence, mass 1 is the largest.
To find more on force, refer here:
https://brainly.com/question/26115859
#SPJ2
The force F between two parallel wires carrying electric currents is inversely proportional to the distance d between the wires. If a force of 0.750 N exists between wires that are 1.75 cm apart, what is the force between them if they are separated by 2.50 cm?
Answers
the force between the two wires if they are separated by 2.50 cm is 0.525 N.
Given that force F between two parallel wires carrying electric currents is inversely proportional to the distance d between the wires and that a force of 0.750 N exists between wires that are 1.75 cm apart and that we are supposed to find the force between them if they are separated by 2.50 cm.
Let the initial force be F₁ and the initial distance be d₁.
Therefore, we can write the relationship between force and distance as;
F₁d₁ = F₂d₂
Where
;F₁ = 0.750 N (initial force)
d₁ = 1.75 cm (initial distance)
F₂ = ? (force at new distance)
d₂ = 2.50 cm (new distance)
Let us find F₂;F₁d₁ = F₂d₂F₂ = F₁d₁/d₂
Now substitute the values we know;
F₂ = (0.750 N x 1.75 cm) / 2.50 cmF₂ = 0.525 N
Therefore, the force between the two wires if they are separated by 2.50 cm is 0.525 N.
learn more about force here
https://brainly.com/question/25239010
#SPJ11
can anyone help me???
Answers
Answer:
yes
Explanation:
1.98×10 m/s
you can use a physics text
I remember but am not sure
3.00 × 10 m/s
I think you do 10 ×10 in 8 places for both them you do the rest
the electrical interaction between the nucleus and the orbital electron is a force of
-
A) attraction
B) repulsion
Answers
Answer:
Attraction
Explanation:
Nucleus has a positive charge. Electron has a negative charge. Opposite charges attract and equal charges repel
The electrical interaction between the nucleus and the orbital electron is a force of attraction.
Electrons are negatively charged and are pulled pretty close to each other by their attraction to the positive charge of a nucleus. The electrons are attracted to the nucleus at the same time as electrons repel each other. The balance between attractive and repulsive forces results in shielding.The nucleus is positive and the electrons are negative, which obviously means they attract. However, electrons are organized into shells, and so as you move further out, you have more shells of electrons in the way of the nucleus, which repels the outermost electrons a little more.
Learn more about electron attraction
https://brainly.com/question/14889552
#SPJ2
PLEASE HELP ME!!! IREALLY NEED IT AND I WILL MARK BRAINLIST IF YOU ANSWER CORRECTLEY!!! mass of 0.22kg is oscillating on the planet Tatooine at a small angle from a light string of length 0.30m, with a period of 0.90s. What is the acceleration of gravity on Tatooine?
Answers
Answer:
The correct answer is 1.3Hz
Answer:
15 m/s
Explanation:
0.3 + 0.2 = 0.5
0.5 * 10 = 5
5 + 10 = 15
question if the puck were struck in the same way by an astronaut on a patch of ice on mars, where the acceleration of gravity is 0.35 g, so that the puck left the hockey stick with the same speed, the distance it travels would be
Answers
If the puck were struck in the same way by an astronaut on a patch of ice on Mars, where the acceleration of gravity is 0.35 g (where g is the acceleration due to gravity on Earth), the distance it travels would be greater than on Earth. The reason for this is that the acceleration due to gravity on Mars is lower than on Earth.
When the puck is struck with the same initial speed, the lower gravitational acceleration on Mars would result in less deceleration and slower downward motion compared to Earth. As a result, the puck would stay in the air for a longer duration, covering more horizontal distance before hitting the ground.
The reduced gravity on Mars would allow the puck to remain airborne for a longer time, enabling it to travel a greater distance. However, the exact distance traveled would depend on factors like initial speed, angle of launch, and air resistance, which are not specified in the question.
Learn more about gravity here:
https://brainly.com/question/31321801
#SPJ4
Wich of the following factors might influence a community decision to build a new power plant
Answers
Heat rates, thermal efficiencies, capacity factors, load factors, economic efficiencies, operational efficiencies, and energy efficiencies are all elements in power plants. A power plant's performance may be expressed using several typical performance factors: heat rate (energy efficiency) and thermal efficiency.
What are the three most important variables that influence plant growth?Water, light, temperature, and nutrients are the four most important factors influencing plant development. You might be asking where dirt comes into all of this. Plants may grow without soil using a technique known as hydroponics. Plants, on the other hand, cannot grow if they are not provided with the necessary nutrients.
Learn more about power plants
https://brainly.com/question/27793224
#SPJ1