what force of gravity exists at two times the earth’s radius? answer in units of n
Answers
The force of gravity exists at two times the Earth's radius is 0.25 N.
What is a force of gravity?The force of gravity is the force with which two objects are attracted to each other due to their masses. In other words, gravity is the force that causes things to fall to the ground and planets to orbit the sun. The force of gravity is dependent on the mass of the objects and the distance between them.
The formula for calculating the force of gravity is given by: F = (G × m₁ × m₂) / r²Where F is the force of gravity, G is the gravitational constant, m₁ and m₂ are the masses of the two objects, and r is the distance between the centers of the two objects. When the distance between two objects is increased, the force of gravity between them decreases.
As a result, the force of gravity at two times the Earth's radius is less than that at the Earth's surface. At the Earth's surface, the force of gravity is 9.8 N/kg. At two times the Earth's radius, the distance between the center of the Earth and the object is doubled.
Using the formula:
F = (G × m₁ × m₂) / r²F
= (6.67 × 10^-11 Nm²/kg² × 1 kg × 5.97 × 10^24 kg) / (2 × 6,371,000 m)²F
= 0.25 N
Therefore, the force of gravity at two times the Earth's radius is 0.25 N.
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Related Questions
ehicle collisions involve huge amounts of energy. How does the crashworthiness of a car affect the transfer and transformations of the energy and, ultimately, protect the occupants with consideration of the Law of Conservation of Energy.
Answers
When the two-vehicle collides transformation of the energy is done in terms of kinetic energy.
What is the law of conservation of energy?According to the Law of Conservation of Energy, energy can neither be created nor destroyed, but it can be transferred from one form to another.
The total energy is the sum of all the energies present in the system. The potential energy in a system is due to its position in the system.
In the above problem, the Vehicle get collides so that the kinetic energy of the vehicle is converted into the kinetic energy of another vehicle the speed of the vehicle will reduce when they collide.
Momentum also gets conserved when the two vehicles collide.
Hence, the transformation of the energy is done in terms of kinetic energy.
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A fin whale is swimming at the speed of 35 km/h how many hours will it take to swim 7 km
Answers
Answer:
0.2 hours
Explanation:
\( \frac{7}{35} = 0.2\)
Q2 (a) A radar, with coordinates (0,0), has coverage with length of d. While the second radar, with identical coverage, is situated on the east side of the first one. Using signal intersection, both radars detect an object coming closer to the southern direction in the first quadrant. Note that radars swap the covered area into circles.
i) Identify position of the object in terms of distance and angle. Complete your answer with a sketch.
ii) Analyze and calculate the overlapping area from the radar signals intersection at the first quadrant.
Answers
Considering the coordinates of the radars as well as the direction of the object in order to determine the object's position in terms of distance and angle. Sincе thе radars arе situatеd at (0,0) and thе sеcond radar is on thе еast sidе of thе first onе, wе can assumе that thе first radar is locatеd on thе x-pivot and thе sеcond radar is locatеd on thе positivе y-hub.
Lеt's say thе objеct is dеtеctеd at coordinatеs (x, y). The objесt's y-coordinativity will be negative and its x-coordinativity positive as it approaches the southern direction in the first quadrant.
We can use the distancе formula to determine the object's diameter from its origin (0, 0):
Distancée = (x + y) 2 The angle can be calculated with trigonometry. The angle can be summarized as:
= arctan(y/x) ii) We must consider the circles of overlap for each radar in order to calculate the overlap from the radar signal intersection in the first quadrant.
Due to the fact that both radars have distinctive overlap and divide the covered area into circles, the overlapped area will be the intersection of these circles.
Thе ovеrlapping arеa can bе calculatеd by finding thе arеa of thе intеrsеction of two circlеs. The formula for the area of the intersection of two circles can be complex and depends on the specific radii and dimensions that exist between the circles' centers.
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The basic modes of fluid motion are translation, rotation, and shear.
T/F
Answers
The statement "The basic modes of fluid motion are translation, rotation, and shear" is true as it all help in analyzing complex fluid flows and are essential in numerous applications.
In fluid dynamics, understanding these modes is crucial for analyzing the behavior of fluids in various applications. Translation, rotation, and shear help in characterizing the different types of motion exhibited by fluid particles.
1. Translation: This mode involves the linear movement of fluid particles from one point to another. The fluid particles maintain their relative position and orientation while moving together as a whole. This motion is generally a result of external forces such as gravity or pressure gradients.
2. Rotation: In this mode, fluid particles exhibit a spinning motion around an axis. This rotation occurs when there is a change in the velocity of fluid particles along a curved path, causing a difference in the angular momentum. Vortices are a common example of rotational motion in fluids, where fluid particles rotate around a central point or axis.
3. Shear: Shear motion refers to the relative sliding or deformation of fluid particles along parallel planes. This motion occurs due to a difference in velocities of adjacent fluid layers, leading to internal resistance or viscosity. Shear is essential in understanding the behavior of fluids in cases where there is a variation in the flow velocity, such as near solid boundaries or when fluids with different velocities mix.
These three basic modes of fluid motion help in analyzing complex fluid flows and are essential in numerous applications, such as meteorology, engineering, and oceanography.
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an electron acquires 6.45×10−16 j of kinetic energy when it is accelerated by an electric field from plate a to plate b .
Answers
Answer:
The potential difference between the plates is 4030 volts.
Since the electron is moving from plate A to plate B, plate B is at a higher potential than plate A.
Explanation:
The potential difference between the plates can be calculated using the following equation:
ΔV = KE / q
ΔV = 6.45 × 10^-16 J / -1.602 × 10^-19 C = 4030 V
Therefore, the potential difference between the plates is 4030 volts.
Since the electron is moving from plate A to plate B, plate B is at a higher potential than plate A.
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an ocean wave has a wavelength of 15 meters and is moving at 2.5 m/s. what is the frequency
Answers
Answer:
frequency is .167/s for this wave
Answer:
wave speed=frequency×wave length
frequency=15/2.5
=6
i hope this helps
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The ratio of xi to xo for a certain mirror is 2.5. Which is true of an image produced by this mirror?
It is 2.5 times larger and virtual.
It is 2.5 times larger and real.
It is 2.5 times smaller and virtual.
It is 2.5 times larger and real.
Answers
The true of an image produced by this mirror will be 2.5 times smaller and virtual. Option C is correct.
What is the image?When light beams from an object reflect off a mirror, they intersect with the picture of that thing called an image. Real and virtual images are the two sorts of images.
The ratio of xi to xo for a certain mirror is 2.5;
\(\rm \frac{x_i}{x_0} =2.5 \\\ x_i=2.5 x_0\)
Where,
\(\rm x_0\) is the true of an image produced by this mirror.
The true of an image produced by this mirror will be 2.5 times smaller and virtual.
Hence,option C is correct.
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4. MILLIKAN EXPERIMENT. An oil drop with a mass of 3.1 x10^-15kg absorbs 11 electrons, and then falls through an opening in two parallel, horizontal plates 1.8 cm apart. The upper plate is positive.a) Determine the charge absorbed by the oil drop. b) Determine the required potential difference between the plates in order for the oil drop to be suspendedbetween the two plates.
Answers
Given:
The mass of the oil drop is
\(m\text{ = 3.1}\times10^{-15}\text{ kg}\)The number of electrons is n = 11
The distance between the plates is
\(\begin{gathered} d=\text{ 1.8 cm} \\ =\text{ 0.018 m} \end{gathered}\)To find
(a) The charge absorbed by the oil drop.
(b) The potential difference between the plates.
Explanation:
The charge absorbed by the oil drop can be calculated by the formula
\(Q=\text{ ne}\)Here, e is the charge of the electron whose magnitude will be
\(e=\text{ 1.6}\times10^{-19}\text{ C}\)On substituting the values, the charge absorbed by the oil drop will be
\(\begin{gathered} Q=11\times1.6\times10^{-19}\text{ } \\ =\text{ 1.76}\times10^{-18}\text{ C} \end{gathered}\)(b) The potential difference can be calculated as
\(\begin{gathered} mg=\frac{QV}{d} \\ V=\frac{mgd}{Q} \\ =\frac{3.1\times10^{-15}\times9.8\times0.018}{1.76\times10^{-18}} \\ =310.704\text{ V} \end{gathered}\)Tell me what the laws of thermodynamics are in a simple way
Answers
Answer:
The first law, also known as Law of Conservation of Energy, states that energy cannot be created or destroyed in an isolated system. The second law of thermodynamics states that the entropy of any isolated system always increases. The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero.
Explanation:
The sensation of color is seen when light falls on the eye's
a) both of these
b) rods
c) cones
d) neither of these
Answers
The sensation of colour is seen when light falls on the eye's cones.
The retina, a component of the eye, is what detects light entering our eyes. The pupil is the black hole in the centre of the eye that lets the light into the eye.
Light-sensitive cells can be found in the retina of the eye. It contains two kinds of cells known as rods and cones. Cones are the cells of retina that produce colour sensation. These photoreceptor cells are responsible for colour vision.
Rod cells are photoreceptor cells in the retina that function in dim light better than the other type of visual photoreceptor, cone cells.
Rods are employed in peripheral vision and are often clustered at the borders of the retina.
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Which plate is the South American plate?
A
B
C
D
Answers
Answer: B
Explanation: I think that it is B.
what is the round-trip time (rtt) latency in milliseconds for cisco dna center across the intra-cluster link?
Answers
The round-trip time (RTT) latency in milliseconds for Cisco DNA Center across the intra-cluster link is typically less than 5 milliseconds.
RTT latency is a measure of the time it takes for a signal to travel from one point in a network to another and back again. In the case of Cisco DNA Center, this measurement is taken across the intra-cluster link, which connects the different components of the DNA Center cluster.
It is important to note that RTT latency can vary depending on a variety of factors, including network congestion and the distance between the two points.
However, in general, the RTT latency for Cisco DNA Center across the intra-cluster link is very low, typically less than 5 milliseconds. This ensures that the different components of the DNA Center cluster can communicate with each other quickly and efficiently.
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Find the current flowing across the 20 ohm resistor.
Answers
Answer:
15 is it
Explanation:
Answer:
The answer would be 0.23
Explanation:
Put in 0.23
A solution containing 3.4 moles of pl3 and one l water
Answers
Answer:
c
Explanation:
c
A block of mass 3.5 kg displaces 1000 cm ^3 of water when fully immersed inside. The upthrust on body will be what.
Answers
Given :
Mass of block = 3.5 kgWeight of Block = 3.5 kgfVolume of water displaced when body is fully immersed = 1000 cm³Answer:
For calculating Upthrust on block we will have to first find out Volume of block :
↪Volume of block = Volume of water displaced
↪ Volume of block = 1000 cm³ = 0.001 m³
________________Now, we will calculate the Upthrust on block:
↪ Upthrust on block = Volume of block * Density of water * g
↪ Upthrust on block = 0.001 * 1000 * g
↪ Upthrust on block = 1 kgf
Calculate the force (in N) needed to bring a 1050 kg car to rest from a speed of 80.0 km/h in a distance of 120 m (a fairly typical distance for a non-panic stop). N (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a). force in (b) force in (a)
Answers
The force exerted on the car when it hits a concrete abutment at full speed and is brought to a stop in 2.00 m is much greater than the force required to bring the car to rest from a speed of 80.0 km/h in a distance of 120 m. because the distance over which the force acts is much less in the second case, which makes the force greater.
The calculation of the force (in N) needed to bring a 1050 kg car to rest from a speed of 80.0 km/h in a distance of 120 m can be done as follows: First, we need to find the initial velocity of the car in m/s. v = 80 km/h = 22.22 m/s Next, we need to find the final velocity of the car. It is 0 as the car comes to a complete stop. Therefore, vf = 0. We have been given the distance covered by the car, which is 120 m. Now, we can use the formula to find the force required to bring the car to rest: f = (m × (vf - vi)) / d Where m is the mass of the car, vf is the final velocity, vi is the initial velocity and d is the distance covered. Putting the given values in the formula, we get: f = (1050 × (0 - 22.22)) / 120= -192.5 N Therefore, the force required to bring the car to rest is 192.5 N. Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. We can calculate the force exerted on the car as follows: f = (m × (vf - vi)) / d Where m is the mass of the car, vf is the final velocity, vi is the initial velocity and d is the distance covered. Putting the given values in the formula, we get:f = (1050 × (0 - 22.22)) / 2= -115,500 N Therefore, the force exerted on the car is 115,500 N.
To conclude, the force exerted on the car when it hits a concrete abutment at full speed and is brought to a stop in 2.00 m is much greater than the force required to bring the car to rest from a speed of 80.0 km/h in a distance of 120 m. This is because the distance over which the force acts is much less in the second case, which makes the force greater.
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PLEASE HELP!!!!!!!!
Answers
Answer:
the is D
Explanation:
An action-reaction force pair
Answer:
An action-reaction force pair
Which aspects of seasonality are caused by either revolution or rotation?.
Answers
Answer:
1) duration of the sessions
2) daily pattern days and ..
help meeeeeeeeeeee
what is the rheostat and what its ruleeee??
Answers
Answer:
Rheostat, adjustable resistor used in applications that require the adjustment of current or the varying of resistance in an electric circuit. The rheostat can adjust generator characteristics, dim lights, and start or control the speed of motors.
Explanation:
A cycler rides 27.0 km in 13 minutes, then 33.0 km in 17 minutes. What is the jogger's average speed in km per minute?
Answers
Answer: 9
Explanation: because you would add 13+4=17, then you would add 27+5=33, so then 4+5=9 so there's your answe
help please:))))))))))))))))))))
Answers
Answer:
a and c
Explanation:
What information do we know about the known exoplanets? a. estimates of orbits and masses b. complete composition c. precise masses d. all of the above e. none of the above
Answers
The correct option is A. The information we know about the known exoplanets is estimates of orbits and masses.
What is exoplanets?An exoplanet or extrasolar planet is a planet outside the Solar System.
In other words, exoplanet is any planet beyond our solar system.
Characteristics of exoplanetsexoplanets are known for the following characteristics;
they are usually hotthey can orbit their stars so tightly that a “year” lasts only a few daysthey can orbit two suns at onceThus, the information we know about the known exoplanets is estimates of orbits and masses.
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One-fourth of adults in the United States are not active at all.
true
false
Answers
Answer:
true 28%
Explanation:
;"/:;,*"# /hcrvuvf
Answer:
True - - - probably more than one-fourth aren't to be honest
Explanation:
Explain the method to measure the external diameter of a sphere
Answers
Answer:
Sphere is a geometrical object in dimensional space that surface of a circle and ball.
Explanation:
Sphere is that the circular objects in the two dimensional space (1) circle
(2) disk. Two dimensional space is a set of points and the distance of that point,The two points of Sphere that length and center.
Sphere can constructed as the named of surface form circle about any diameter. circle is the special type of the revolution replacing the circle,
sphere is the distance r is the radius of the ball and circle is the center of mathematical ball,as the center and the radius of the sphere is to respectively.
The ball and sphere has not be maintained mathematical references as a solid references. A sphere of any radius is centered at the number of zero.
A geranium is an example of a_______leafed plant.
A. Narrow
B. Broad
Answers
The correct option is B, A geranium is an example of a broad-leaved plant.
Geranium is a common name used for a group of plants in the family Geraniaceae. In chemistry, the term geranium is also used to refer to a class of organic compounds known as geraniols. Geraniols are terpene alcohols that have a rose-like odor and are used extensively in the fragrance industry.
Geraniols are present in many essential oils, including rose, lemon, and citronella oils. They are also found in geranium oil, which is extracted from the leaves and stems of geranium plants. Geranium oil is used in aromatherapy, skincare products, and perfumes due to its pleasant fragrance and potential therapeutic benefits. Geraniols have been studied for their various biological activities, including antimicrobial, anti-inflammatory, and anticancer effects.
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What is a resistor? A. a light bulb B.a switch C. a battery
Answers
Answer:
A resistor is a battery
Answer:
The answer is A
Explanation:
A resistor is a light bulb because it is the flow of an electric current in an electric circuit.
Which definition best explains the Big Bang theory?
A. all matter in the universe burst from a tiny point
B. several galaxies collided and exploded
C. all matter in the universe was created in its current location
D. light waves condensed in a single area and matter was created
Answers
Answer:
probably a
Explanation:
I think that's what it is
It’s called the Big Bang
In electric motors and electric generators, which part is responsible for transferring current from the power source to the commutator or from the slip rings to where the electricity is needed? armature brush axle magnet
Answers
Answer:
brush
Explanation:
its correct
Answer:
B. Brush
Explanation:
Edg 2021
a 55 kg man runs at a speed of 4 m/s. find his kinetic energy
Answers
Answer:
EK = 440 Joule
Explanation:
Known:
m = 55 kg
v = 4 m/s
Ek = ?
Equation to solve this is:
Ek = 1/2 m \(v^{2}\)
Ek = 1/2 . (55) . \((4)^{2}\)
Ek = 440 J
Why do ice cubes float to the top of a glass of water?
A) Water has buoyancy.
B) Ice has a lower density than liquid water.
C) Ice has a higher density than liquid water.
D) Ice is very light.
Answers
Answer: B, Ice has a lower density than liquid water.