Two objects in space have a force of gravity equal to 10 N between them. If the mass of one object is decreased by a factor of 2, what will the new force be?
Answers
If one object's mass is reduced by a factor of 2, the new force of gravity between the two will be 5 N.
What happens as the mass of two items decreases to the gravitational force between them?The square of the distance between two things has an inverse relationship with the force of gravity, which depends directly on the masses of the two items. This translates to an increase in gravity force with mass but a decrease in gravity force with increasing distance between objects.
The force of gravity between two items will be as follows if the mass of one object is reduced by a factor of two:
F = (G * m1 * m2) / r²
Assume that object 1's mass is reduced by a factor of 2. This indicates that object 1's new mass is m1/2.
As a result, the new gravitational force between the two objects will be:
F' = (G * (m1/2) * m2) / r²
By combining the two masses, we can make this equation simpler:
F' = (G * m1 * m2) / (2 * r²)
Now, we can see that the new gravitational force is half that of the old one.
F' = 10 N / 2 = 5 N
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The new force of gravity between the two objects is 5 N.
What is force of gravity?The force of gravity, also known as gravitational force, is the force that attracts two objects with mass towards each other. It is one of the fundamental forces of the universe, and it is the force that governs the motion of planets, stars, and galaxies.
The force of gravity is described mathematically by Newton's law of gravitation, which states that the force of gravity between two objects is equal to the product of their masses, divided by the square of the distance between them, multiplied by a constant known as the gravitational constant.
The force of gravity between two objects is given by the formula:
F = G * (m1 * m2) / r^2
where 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 them.
In this problem, we are told that the force of gravity between two objects is 10 N. We can assume that the distance between the objects remains the same.
If the mass of one object is decreased by a factor of 2, then the new mass will be half of the original mass. Let's call the original masses m1 and m2, and the new masses m1' and m2'. We can write:
m1' = m1 / 2
m2' = m2
The force of gravity between the two objects with the new masses will be:
F' = G * (m1' * m2') / r^2
= G * (m1/2 * m2) / r^2
= (1/2) * G * (m1 * m2) / r^2
= (1/2) * 10 N
= 5 N
Therefore, the new force of gravity between the two objects is 5 N.
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Related Questions
PLS HELP MEH!!!!
Sound travels fastest in
a) air
b) water
c) glass
d) diamond
WILL MARK BRAINLIEST IF ANSWER
Answers
Answer:
hope this helps
Explanation:
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids
so your answer would be B.
A runner is jogging in a straight line at a steady Vr= 3.4km/hr. When the runner is L=8km from the finish line, a bird begins flying straight from the runner to the finish line at Vb= 17km/hr(5 times as fast as the runner). When the bird reaches the finish line, it turns around and flies directly back to the runner. What cumulative distance does the bird travel?
Answers
Answer:
The cumulative distance that the bird travel is 13.33 Km
Explanation:
Given that,
Velocity of runner = 3.4 km/hr
Distance = 8 km
Velocity of bird = 17 km/hr
Let x is the distance from the origin where the runner run into the bird
We need to calculate the value of x
Using time of runner and bird
\(t_{r}=t_{b}\)
\(\dfrac{d_{r}}{v_{r}}=\dfrac{d_{b}}{v_{b}}\)
Put the value into the formula
\(\dfrac{x}{3.4}=\dfrac{8+(8-x)}{17}\)
\(17x=3.4\times8+3.4(8-x)\)
\(17x=27.2+27.2-3.4x\)
\(17x+3.4x=54.4\)
\(x=\dfrac{54.4}{20.4}\)
\(x=2.67\)
We need to calculate the cumulative distance that the bird travel
Using distance of bird
\(d_{b}=16-x\)
Put the value into the formula
\(d_{b}=16-2.67\)
\(d_{b}=13.33\ km\)
Hence, The cumulative distance that the bird travel is 13.33 Km
the average no-load voltage in a dc arc welding circuit is ____ volts. 10–20 15–30 60–80 15–40
Answers
The average no-load voltage in a DC arc welding circuit is typically in the range of 60-80 volts.
What is arc welding?Arc welding is a welding technique that uses an electric arc to melt the base metal and fusing it with the filler metal to create a weld. The welding machine supplies an electric current to a consumable electrode or filler wire to melt the metals, forming a weld pool. The two metals fuse when the weld cools down. The weld is as strong as the base metal and can be used to construct everything from automobile components to skyscrapers.
What is the no-load voltage?In a welding circuit, the no-load voltage is the voltage between the welding electrode and the workpiece before a welding arc is struck. Before the start of a welding operation, the circuit is energized and, as a result, the welding machine produces an open circuit voltage. It is also known as the no-load voltage, which is the voltage measured at the output terminals of the welding machine when the welding arc is inactive and the electrode is not in contact with the workpiece.
The average no-load voltage in a DC arc welding circuit is typically around 60-80 volts. This voltage range is necessary to establish and maintain an electric arc between the welding electrode and the workpiece, enabling the welding process to occur efficiently.
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A spring is compressed between two blocks, one with a mass of 2 kg and the other with a mass of 3 kg. If the 2 kg block has an average acceleration of 6 m/s^2 when the spring acts on it, what will be the average acceleration of the 3 kg block???
Answers
Answer:
2=6
3=9
Explanation:
I think this is right I'm not sure but I have done problems like this and did based on what I remember.
The average acceleration of the 3 kg block is 4 m/s².
The given parameters;
mass of first block = 2 kgmass of second block = 3 kgacceleration of the first block, = 6 m/s/sAccording to Newton's third law of motion, action and reaction are equal and opposite.
The force exerted on both blocks are equal and opposite.
\(F = ma\\\\m_1 a_1 = m_2a_2\\\\a_2 = \frac{m_1 a_1}{m_2}\\\\a _2 = \frac{2\times 6}{3} \\\\a_2 = 4 \ m/s^2\)
Thus, the average acceleration of the 3 kg block is 4 m/s².
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Rayelle’s parents plan to invest $15,000 in a mutual fund earning an average of 4.5 percent interest, compounded monthly. After 15 years, for how many years will this investment be able to cover the tuition, fees, room, and board for Rayelle at a public college if costs stay the same? Round your answer to the nearest month
Answers
Answer + Explanation:
To calculate how many years the investment will be able to cover Rayelle's college costs, we need to know the annual cost of tuition, fees, room, and board at a public college. Let's assume that this cost is $20,000 per year.We also need to know the future value of the investment after 15 years. Using the compound interest formula, we can calculate that the future value of the investment will be:
FV = PV * (1 + r/12)^(n*12)
where PV is the present value of the investment, r is the annual interest rate, n is the number of years, and FV is the future value of the investment.Plugging in the numbers, we get:
FV = $15,000 * (1 + 0.045/12)^(15*12) = $29,286.95
So, after 15 years, the investment will be worth $29,286.95.To calculate how many years the investment will be able to cover Rayelle's college costs, we can divide the future value of the investment by the annual cost of college, and then divide by 12 to get the number of years in months. This gives us:
Years = FV / (Annual cost of college) / 12
Years = $29,286.95 / $20,000 / 12 = 12.24 years
So, the investment will be able to cover Rayelle's college costs for approximately 12 years and 3 months. Rounded to the nearest month, the answer is 147 months. Therefore, the investment will be able to cover Rayelle's college costs for about 147 months.
Hope this helps!
- Dante
how does the sun rise and set
a.earth orbit around the sun
b.The sun is center of solar system
c.earth rotates on it tilted axis and orbit around the sun at the same time
Answers
Answer:
c. earth rotates on it tilted axis and orbit around the sun at the same time
Explanation:
Earth rotation can be defined as the amount of time taken by planet earth to complete its spinning movement on its axis.
This ultimately implies that, the rotation of earth refers to the time taken by earth to rotate once on its axis. One spinning movement of the earth on its axis takes approximately 24 hours to complete with respect to the sun. Thus, this makes us to experience day and night (sun rise and sun set) due to the rotation of planet about its axis.
Hence, the sun rise and set because the earth rotates on it tilted axis and orbit around the sun at the same time
The Moon's appearance as seen from Earth changes
during the 28-day lunar cycle. You can see how the
changes happen by looking at the Sun-Earth-Moon system.
This diagram shows the relative positions of the Sun,
Earth, and the Moon at each point in the cycle.
Last quarter
New
moon
Full
moon
First quarter
Which statement best describes how the phase of the Moon changes from a
full moon to a new moon?
A. Earth moves around the Sun until the Moon is between the Sun
Answers
Answer:
C is correct
Explanation:
The statement that best describes how the phase of the Moon changes from a full moon to a new moon is as follows:
The Moon moves around the Earth until the Moon is between the Sun and the Earth.Thus, the correct option for this question is C.
What are the different phases of the Moon?The different phases of the moon may significantly include the new Moon, waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third quarter, and waning crescent. This cycle of phase change of the moon repeats once a month.
The Earth completes its one rotation around the sun in 365.25 days. While the moon completes its one rotation around the Earth in 29.5 days. The rotation of the moon around the earth leads to phase change of it. This is because when the moon rotates around the sun, it directly or indirectly causes its exposure to the sun where its phase changes.
In the diagram above, when there is a full moon, the earth is present between the sun and the moon. But when a new moon arises, the moon is present between the earth and the sun.
Therefore, the correct option for this question is C.
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A train is uniformly slowed down from 35m/s to 21m/s over a distance of
350m. Calculate the acceleration and the time taken to come to rest from the 35m/s.
Answers
✴ A train is uniformly slowed down from 35m/s to 21m/s over a distance of 350m. Calculate the acceleration and the time taken to come to rest from the 35m/s.
✒ The acceleration is - 1.12 ms-² and the time taken to come to rest from the 35m/s is 31.3 seconds .
Given :-
A train is uniformly slowed down from 35m/s to 21m/s over a distance of 350m.
To Find :-
Calculate the acceleration and the time taken to come to rest from the 35m/s.
Calculation :-
According to the question,
Initial velocity ( u ) = 35 m/s
Final velocity ( v ) = 21 m/s
Displacement ( s ) = 350 meters
♠ A train is uniformly slowed down from 35m/s to 21m/s over a distance of 350m.
From the equation of motion ,
↗ v² - u² = 2as
➡ ( 21 )² - ( 35 )² = 2 x a x 350
➡ 441 - 1225 = 2 x a x 350
➡ - 784 = 700 x a
➡ - 784 = 700a
➡ 700a = - 784
➡ a = -784/700
➡ a = - 1.12 ms-²
So, The Acceleration of the train is - 1.12 ms-².
Initial velocity ( u ) = 35 m/s
Acceleration ( a ) = - 1.12 m/s²
Final velocity ( v ) = 0 m/s
From, the equation of motion ;
↗ v = u + at
➡ 0 = 35 + ( - 1.12 x t )
➡ 0 = 35 + ( - 1.12t )
➡ 0 - 35 = - 1.12t
➡ - 35 = - 1.12t
➡ t = 35/1.12
➡ t = 3500/112
➡ t = 31.3 seconds
The time taken to come to rest from the 35m/sis 31.3seconds.
a square loop whose sides are long is made with copper wire of radius , assuming resistivity of copper is . if a magnetic field perpendicular to the loop is changing at a constant rate of , what is the current in the loop?
Answers
A square loop whose sides are long is made of copper wire of radius , given the resistivity of copper is . if the magnetic field perpendicular to the loop changes at a constant rate of I = 14.029 mA.
The basic characteristic of a substance that measures how effectively it resists an electric current is called electrical resistance. A material with low resistance is a material that easily conducts electric current. A Greek letter is often used to indicate resistivity. Electrical resistance is a basic property of a material that measures how strongly it resists an electric current. The SI unit for electrical resistance is the ohmmeter.
We use magnetic field as a tool to describe how the magnetic field is distributed in the space around and inside something of a magnetic nature. A material with low resistance is a material that easily conducts electric current. A Greek letter is often used to indicate resistivity. An ohmmeter is a unit of electrical resistance in the SI system.
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The complete question is :
A square loop whose sides are 6.0-cm long is made with copper wire of radius 1.0 mm. If a magnetic field perpendicular to the loop is changing at a rate of 5.0 mT/s, what is the current in the loop?
physics ia how does the concentration of salt in water affect the specific heat capacity?
Answers
The concentration of salt in water affects the specific heat capacity by changing the thermal properties of the solution, causing it to require less heat to be raised in temperature.
The specific heat capacity of water is the amount of heat required to raise the temperature of a certain mass of water by 1 degree Celsius. The concentration of salt in water affects its specific heat capacity because the presence of ions in the solution changes the thermal properties of the water.
As the concentration of salt in water increases, the specific heat capacity of the solution decreases. This is because the ions in the salt solution require less heat to be raised in temperature than pure water molecules. Additionally, the ions in the salt solution also increase the mobility of water molecules, causing them to transfer heat more efficiently and therefore, the heat energy required to raise the temperature of the solution is reduced.
It should be noted that the effect of salt concentration on specific heat capacity is small, and significant changes in specific heat capacity usually require very high salt concentrations. Nevertheless, the change in specific heat capacity can have a significant impact on the thermal dynamics of systems such as oceans, which contain high salt concentrations.
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please help me!!
1. Describe how matter and energy interact when waves are generated?
Answers
At an altitude of 6679 km above the center of the Earth the International space station can complete one orbit and 1.5 hours determine the average speed of the ISS explain why you should calculate speed in this case and not velocity
Answers
an object's speed tells you how fast it's going. Its velocity tells you how fast it's going in a certain direction. You use speed measurements in your daily life, but physicists depend on velocity measurements more frequently in their work.
how fast must a 1000 kg car be moving to have a kinetic energy of 2.0×10^5 j
Answers
Explanation:
\(kinetic \: energy= \frac{1}{2} m {v}^{2} \)
\(2 \times {10}^{5} = \frac{1}{2} 1000 {v}^{2} \)
\(2 \times {10}^{5} = 500 {v}^{2} \)
\( \frac{2 \times {10}^{5} }{500} = {v}^{2} \)
\( {v}^{2} = 400\)
\(v = 20\)
Answer:
KE= 1/2mv^2
where KE= 2.0*10^5j
metal object is earthed by connecting it to ......
Answers
Answer:
ii) Insulating materials that gain electrons when rubbed become negatively charged. c) An electric current is a flow of charge. d) An isolated metal object that is initially uncharged will gain charge if it is brought into contact with a charged object. e) A metal object is earthed by connecting it to the ground.
Explanation:
hope this helps you :)
An object is hit with a force of 25 N and accelerates at a rate of 10 m/s/s. What is the mass of the object?
Answers
Answer:
2.5 kg
Explanation:
mass is force divided by acceleration25÷10How much air resistance acts on a 100-N bag of nails that falls at its terminal speed?
Answers
According to the kinetic-molecular theory, particles of a gas.
Answers
According to the kinetic-molecular theory, particles of a gas are in constant, random motion, colliding with one another and the walls of their container.
This movement results in pressure and explains gas behavior under different conditions. Gas particles are small and widely spaced, occupying a negligible volume compared to the container. They have negligible attractive or repulsive forces, allowing them to move independently.
Additionally, the kinetic energy of gas particles is proportional to temperature, with higher temperatures increasing their speed and energy. Gas particles' collisions are elastic, meaning there's no net loss of kinetic energy. In summary, the kinetic-molecular theory describes gas particles as constantly moving, widely spaced, and having negligible forces between them, with their kinetic energy proportional to temperature and collisions that maintain total energy.
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what is the symbol for specific latent heat of vaporization
Answers
Answer: L
Explanation: L is the specific latent heat for a particular substance (kJ kg−1 or in BTU lb−1), either Lf for fusion, or Lv for vaporization.
which spectator is likely to get more hurt with tennis / cricket ball
Answers
Answer:
It a cricket Ball
Explanation:
Woodpeckers are amazing birds. A skull that dissipates energy allows them to forcefully drive their beak into wood approximately 20 times per second without sustaining brain injury. One study of woodpeckers found that the beak strikes a tree trunk at 3.6 m/s, experiences a nearly constant force for a mere 2.0 ms, and then rebounds at the same 3.6 m/s.
Part A
What is the magnitude of the acceleration of the woodpecker's head? Express your answer with the appropriate units.
Part B
How far in mm does its beak penetrate into the wood? Express your answer in millimeters.
Part C
A woodpecker's head has a mass of 9.0 g. What is the magnitude of the force on a woodpecker head? Express your answer with the appropriate units.
Answers
The magnitude of the acceleration of the woodpecker's head is 0 m/s².
Does the direction alter depending on how much you're accelerating?A vector quantity with both magnitude and direction is acceleration. Whether an object is speeding up or slowing down, as well as the direction in which it is travelling, determine the direction of acceleration. An object will often accelerate in the same direction as its motion if it is speeding up.
The amount of the woodpecker's head's acceleration can be determined using the acceleration formula:
a = (v_f - v_i) / t
The time interval (t) is 2.0 ms, or 0.002 s.
Therefore, the magnitude of the acceleration is:
a = (v_f - v_i) / t
a = (0 m/s - 0 m/s) / 0.002 s
a = 0 m/s²
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a crane lowers a girder into place at constant speed. consider the work wg done by gravity and the work wt done by the tension in the cable. which is true?
Answers
The work done by gravity (\(W_g\)) and the work (\(W_t\))done by the tension in the cable for lowering a girder into place at constant speed is same in magnitude. So, \(W_g = W_t\).
What is work done?The amount of force multiplied by the distance the thing travelled in the direction of the applied force is how much work is done on an object.
Work done is equal to force times distance. joule is the unit of work.
In the case of a crane lowers a girder into place at constant speed. gravitational force and tension of the cable acts in opposite direction with equal magnitude. So, the work done by gravity (\(W_g\)) and the work (\(W_t\))done by the tension in the cable for lowering a girder into place at constant speed is same in magnitude. So, \(W_g = W_t\).
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Give the symbols of a Semi metal and a non-metal in the same peradic as potassium
Answers
Arsenic (As) is the semimetal and Carbon (C) is the non-metal in the same period as potassium.
In the periodic table, the semimetal group is located between metals and non-metals. Group 13 contains Boron, Group 14 contains Silicon and Germanium, Group 15 contains Arsenic and Antimony, Group 16 contains Tellurium and Polonium, and Group 17 contains Astatine.
Non-metals are the elements in Group 14–18 that are neither metals nor semimetals. A non-metallic element is hydrogen.
The elements in Groups 1 through 12, with the exception of hydrogen, Group 13 and Boron, Tin, and Lead in Group 14, and Bismuth in Group 15, are considered metals.
Metals are also used in the bottom two rows of the periodic table.
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What is its rotational inertia about the meter stick in the
previous question if it is swung in a circle about one of its
ends?
STICK ABOUT
END
I= '3 mL?
Answers
Answer:
Honestly I cant understand that so please explain it someone
Explanation:
ii) One of the containers is wide and shallow. The other container is narrow and deep
Predict which container has the greater rate of cooling. Explain your answer.
Answers
if c has the velocity found in parts (a) and (b), what is the change in the kinetic energy of the system of three spheres as a result of the collision?
Answers
The change in kinetic energy of the system of the three spheres as a result of the collision is -0.145 J
What is the kinetic energy of a system?Kinetic energy of a system is the energy the system has due to the motion of the system.
Part of the question includes: Mass of sphere A = 0.020 kg
Velocity of A = 1.50 m/s in the -ve x-direction
Mass of B = 0.030 kg
Velocity of B = 0.50 m/s in the direction South 30° West
Mass of C = 0.050 kg
The spheres stick together after collision
Part A: The resultant velocity of the spheres = 0.50 m/s in the +ve x-direction:
Which gives: Velocity of A = -1.5·i
Velocity of B = -0.5×cos(60°)·i - 0.5×sin(60°)·j
Resultant velocity = 0.50·i
Which gives: \(\overset{\rightharpoonup}{v}_C\) = 0.50·i - (-0.5×cos(60°)·i - 0.5×sin(60°)·j -1.5·i) = \(\dfrac{9}{4} \cdot \mathbf{i}+\dfrac{\sqrt{3} }{4} \cdot \mathbf{j}\)
The initial kinetic energy of the system before collision is therefore:
K.E. = 0.5×m×v²
\(K.E._A =0.5\times 0.02 \times 1.5^2 = 0.0225\)
\(K.E._B =0.5\times 0.03 \times 0.5^2 = 0.00375\)
The magnitude of the velocity of C = \(|\overset{\rightharpoonup}{v}_C|=\sqrt{\left(\dfrac{9}{4} \right)^2+\left(\dfrac{\sqrt{3} }{4} \right)^2} = \dfrac{\sqrt{21} }{2}\)\(K.E._C=0.5\times 0.05\times \left( \dfrac{\sqrt{21} }{2}\right)^2= 0.13125\)
The initial energy in the system, K.E.₁ = 0.0225 + 0.00375 + 0.13125 = 0.1575
The final kinetic energy of the system, K.E.₂ = 0.5×(0.02+0.03+0.05)×0.5² = 0.0125
The change in kinetic energy of the system, ΔK.E. is therefore:
ΔK.E. = K.E.₂ - K.E.₁
Which gives:
ΔK.E. = 0.0125 - 0.1575 = -0.145
The change in kinetic energy of the system is -0.145 JLearn more about the work energy and power here:
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according to the universal law of gravitation, the force due to gravity is:____.
Answers
According to the universal law of gravitation, the force due to gravity is directly proportional to the product of the masses of two objects and inversely proportional to the square of the distance between them.
Explain universal law of gravitation?The force of attraction between two objects caused by their masses is described by the universal law of gravitation, a physical principle put forth by Sir Isaac Newton. This law states that every particle of matter attracts every other particle in the cosmos with a force that is directly proportional to the product of their masses and inversely proportional to the square of their separation.
The equation provides the law's mathematical expression:
F = G * (m1 * m2) / r^2
Where r is the distance between the centers of the two objects, m1 and m2 are their masses, and G is the gravitational constant.
The gravitational constant is a fundamental constant of nature that has a value of approximately 6.674 x 10^-11 Nm^2/kg^2.
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Where do humans and other animals get their food? From only other animals From plants and other animals From only plants From the sun.
HELP PLZZZ
Answers
Answer:
Humans (which are omnivores) get their food from plants and other animals.
Some animals (omnivores) get their food from plants and other animals.
Some animals (carnivores) get their food from only other animals.
Some animals (herbivores) get their food from only plants.
Answer:
c
Explanation:
A 100kg diver jumps off a 40m cliff. Ignoring the affects of air resistance, determine the
time it would take for the diver to reach the water.
Answers
Answer:2.86seconds
Explanation:
H=gt^2/2
t=2h/g
A wave has a frequency of 17.6 Hz and a distance from crest to crest of 4.1 m. What is the speed of the wave
Answers
Answer:
12.m
Explanation:
true/false. the body of a for loop will contain one statement for each element of the iteration list.
Answers
False. The body of a for loop does not necessarily need to contain one statement for each element of the iteration list. In a for loop, the body is executed once for each element in the iteration list.
However, the body can contain multiple statements, including conditional statements, function calls, or any other valid code. It is common to have multiple statements within the body of a for loop to perform different actions or computations for each iteration. The number of statements within the loop body depends on the specific requirements of the program and the desired functionality. The body of a for loop does not necessarily need to contain one statement for each element of the iteration list. In a for loop, the body is executed once for each element in the iteration list.
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