how far from a very small 100 kg ball would a particle have to be placed so that the ball pulled on the particle just as hard as the earth does? Is i reasonable that you could actually set up this as an experiment? Why? Please explain.
Answers
A particle have to be placed so that the ball pulled on the particle just as hard as the earth does, While the calculation is mathematically possible, it is not practically feasible to set up this experiment in real life.
To answer your question, we need to first understand that the force of gravity between two objects depends on their masses and the distance between them. The force between the 100 kg ball and the particle is given by the formula:
F = G * (m1 * m2) / r^2
where F is the force, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between them.
In this case, we want the force between the ball and the particle to be equal to the force of gravity between the particle and the earth. This means we need to set up the equation:
G * (100 kg * m2) / r^2 = G * (m2 * 5.97 x 10^24 kg) / (6.38 x 10^6 m)^2
Simplifying this equation, we get:
100 / r^2 = 5.97 x 10^24 / (6.38 x 10^6)^2
Solving for r, we get:
r = sqrt(100 * (6.38 x 10^6)^2 / 5.97 x 10^24) = 4.4 x 10^-3 meters
So the particle would have to be placed about 4.4 millimeters away from the 100 kg ball to experience the same gravitational force as it does from the earth.
It is not reasonable to set up this as an experiment because the force of gravity between such small objects is incredibly weak and difficult to measure accurately. The equipment required to make such a measurement would be extremely sensitive and expensive, and any external influences such as air currents or vibrations could easily disrupt the experiment. Additionally, the ball and particle would likely have to be isolated from all other sources of gravity, which would be nearly impossible to achieve.
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Related Questions
Which of the objects have only potential energy?
Answers
Answer:
its all of the above.
Explanation:they all have potential energy but they get it in different ways.
What makes a relationship healthy? Name 3 factors.
Answers
Answer:Mutual respect. Mutual trust. Mutual affection.
Explanation:
In the principle of moments (select the correct statement):
20 points
the moment of the biggest Force will be always bigger than the moment of the other force
moments of both forces are equal
the moment of the smallest Force will be always bigger than the momentof the other Force
Answers
According to the research, the correct option is moments of both forces are equal. In the principle of moments, both moments of forces are equal.
What is the principle of moments?It states that the moment of a force about a point is equal to the sum of the moments of the components of the force about the point where two forces are equivalent when their effects on a rigid body are the same, that is, produce the same moment.
In this sense, two forces acting on an object are known as a couple whose torques about a point cause the object they act on to tend to rotate.
Therefore, we can conclude that following the equilibrium condition in the principle of moments, a structure of an object has to respond to the action of a moment with another of the same value and in the opposite direction.
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photoelectron energy Radiation with an energy of 4.2 eV strikes a photocell. If the work function of the photocell is 2.31 eV, what is the energy of the ejected photoelectron?
Equation Sheet:
E = nhf
E = hf
KE= -eΔVo
h = 6.62607004 x 10^-34 m^2 kg/s
E = hc / λ = 1240 eV . nm/λ
KE = hf - hf0
Electron (mc) 9.109 xx 10^-33 kg
e = 1.60 x 10^-19 C
p = hf/c = h/ λ
λ = h/p = h/mv
Answers
The energy of the ejected photoelectron is 1.89 eV.
Energy of radiation, E = 4.2 eV Work function of photocell, φ = 2.31 eV
Energy of ejected photoelectron is given by the difference of the energy of incident radiation and the work function of the metal. That is, KE = hυ - φ where, h is Planck's constant, υ is the frequency of radiation, c = λυ is the speed of lightλ is the wavelength of radiation and c is the speed of light.
From the energy formula of radiation, E = hυE = hc / λ, by substituting h and c values
KE = hc / λ - φ
Given, h = 6.626 x 10^-34 J-s, c = 3 x 10^8 m/s
λ = hc / E
= (6.626 x 10^-34 J-s x 3 x 10^8 m/s) / (4.2 eV x 1.6 x 10^-19 J/eV)
= 4.93 x 10^-7 m
KE = hc / λ - φ
= (6.626 x 10^-34 J-s x 3 x 10^8 m/s) / (4.93 x 10^-7 m) - (2.31 eV x 1.6 x 10^-19 J/eV)
= 1.89 eV
Therefore, the energy of the ejected photoelectron is 1.89 eV.
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What is the kinetic energy of a 500kg car traveling 50m/s
Answers
Answer: 625000 J
Explanation:
KE= (1/2)mv^2
m=500kg
v=50m/s
KE= (1/2 )(500)(50)^2
= 625000 J
Which of the following best describes what’s physicist does
Answers
hope that helped! :)
A 1450 kg torpedo strikes a 670 kg target that is initially at rest. If the combined torpedo and target move forward with a speed of 10.6 m/s, what is the initial velocity of the torpedo? Assume that no resistance is provided by the water.
Answers
By conservation of momentum, we will see that the initial velocity of the torpedo is 15.4 m/s
How to apply conservation of momentum?The conservation of momentum says that the total momentum before the collision must be the same as after the collision.
Before the collision we have a momentum:
P₀ = torpedo momentum + target momentum.
Where the momentum is given by:
Momentum = Mass×Velocity.
Then the initial momentum is:
P₀ = (1450kg)*V + (670 kg)*0m/s
Where V is the initial velocity of the torpedo.
For the final momentum, the torpedo and the target travel together with a velocity of 10.6 m/s, so we can see that the final momentum is:
P₁ = (1450kg + 670kg)*10.6m/s
Because of the conservation, we must have:
P₀ = P₁
(1450kg)*V = (1450kg + 670kg)*10.6m/s
(1459kg)*V = 22,472 kg*m/s
V = (22,472 kg*m/s)/(1459kg) = 15.4 m/s
So the initial velocity of the torpedo was 15.4 m/s
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please answerrrr need this asapppp
Answers
Answer:
A
Explanation:
It depends on the scale of the volcanic eruption. A smaller eruption may only affect the nearby area, but a large one can affect the whole world. For example, the Krakatoa eruption of 1883 created an ash cloud which lowered global temperatures and affected the climate for a year afterwards.
An explosive eruption by a single volcano can affect only the lifeforms living on the volcano. The correct option is B.
What is a volcano?A volcano is an opening in the Earth's surface through which molten rock, ash, and gas can escape. Volcanoes are formed by the movement of tectonic plates, which create weak spots or vents in the Earth's crust where magma can rise to the surface.
Volcanoes can form in different ways, but most are formed at plate boundaries, where one tectonic plate is moving under another (subduction zone), or where two plates are moving away from each other (divergent boundary). When magma rises to the surface, it can form a volcanic cone or mountain over time.
There are three main types of volcanoes, based on their shape and the type of eruptions they produce:
(i)Shield volcanoes - broad, gentle slopes formed by lava flows that spread out over a wide area.
(ii)Stratovolcanoes (also called composite volcanoes) - tall, steep-sided cones formed by alternating layers of lava, ash, and other volcanic debris.
(iii)Calderas - large, basin-shaped depressions that form when a volcano collapses or erupts so forcefully that it empties its magma chamber.
Volcanoes can be active, dormant, or extinct. Active volcanoes are those that have erupted recently or are expected to erupt soon, while dormant volcanoes have not erupted in a long time but could still erupt in the future. Extinct volcanoes are those that have not erupted in thousands of years and are unlikely to erupt again.
Here in the question,
An explosive eruption by a single volcano can have a significant impact on the surrounding environment and local communities, but its effects are generally limited to the immediate vicinity of the volcano. The eruption may release ash, gases, and lava flows that can cause damage to nearby ecosystems and affect the health of humans and animals living in the area. However, the effects are unlikely to extend beyond the local region, let alone affect lifeforms throughout the world.
Therefore, B. only the lifeforms living on the volcano, is the correct option.
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A cat has a mass of 8.2 kg. If the acceleration due to gravity (g) is equal to 24.8, how much would the cat weight on Jupiter?
Answers
The weight experienced by an object in a planet is the product of the acceleration due to gravity of that planet and mass of the object. The cat with a mass of 8.2 kg has the weight of 203.3 N.
What is gravitational force ?Gravitational force is a type of force by which an object attracts other objects into its center of mass. The force exerted depends on the mass of the objects and distance between them.
The weight we experience on earth is due to the force of gravitation by earth. Weight of an object is the product of its mass and acceleration due to gravity of its planet.
Here,
acceleration due to gravity of Jupiter = 24.8 m/s²
mass of the cat = 8.2 kg
then, weight of the cat in Jupitar = 24.8 m/s² × 8.2 kg = 203.3 N
Therefore, the weight of the cat in Jupiter is 203.3 N.
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the weight of the cat on Jupiter would be approximately 203.36 N.
What is gravitational force?The force of attraction between any two bodies is inversely proportional to the square of the distance between them and directly proportional to the product of their masses.
The weight of an object is the force exerted on it by gravity, and is given by the formula:
weight = mass x gravity
On Earth, the acceleration due to gravity is approximately 9.8 m/s².
However, the acceleration due to gravity on Jupiter is about 24.8 m/s², which is 2.53 times greater than on Earth.
To find the weight of the cat on Jupiter,
we can use the same formula but with the acceleration due to gravity on Jupiter:
weight on Jupiter = mass x gravity on Jupiter
weight on Jupiter = 8.2 kg x 24.8 m/s²
weight on Jupiter = 203.36 N
Therefore, the weight of the cat on Jupiter would be approximately 203.36 N.
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I NEED HELPP!!!
Calculating the Value of an Unknown Resistor
Answers
Arthur throws a 0. 15-kg rubber ball onto the floor. The ball's speed just before impact is 8. 5 m/s, and just after is 6. 5 m/s. If down is considered the negative direction, the ball's change in momentum is ________ kg*m/s
Answers
The change in momentum of the ball of mass 0.15 kg is -0.3 kgm/s.
What is change in momentum?Change in momentum is the product of mass and change in velocity.
To calculate the change in momentum of the ball, we use the formula
Formula:
ΔM = m(v-u).............................. Equation 1Where:
ΔM = Change in momentum of the ballm = Mass of the ballu = Initial velocityv = Final velocityFrom the question,
m = 0.15 kgu = 8.5 m/sv = 6.5 m/sSubstitute these values into equation 1
ΔM = 0.15(6.5-8.5)ΔM = 0.15×(-2)ΔM = -0.3 kgm/sHence, The change in momentum is -0.3 kgm/s.
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What do weather and climate have in common? (3 points) Both affect average ocean temperatures. Both are averages measured over a long period of time. Both apply to a certain region. Both change from day to day.
Answers
Answer:
Both apply to a certain region.
Explanation:
Answer:
both apply to a certain region.
Explanation:
climate refers to the overall average weather year-round in that location. weather however refers to the current weather in that location.
hope this helps ;)
State one similarity between rotatory and circular motion
Answers
Answer:
The main difference between these types of motion is that circular motion is a special case of rotational motion, where the distance between the body’s centre of mass and the axis of rotation remains fixed.
Rotational motion is based around the idea of rotation of a body about its center of mass. In rotational motion, the axis of rotation and centre of mass could change whereas in circular motion, the axis of rotation and centre of mass does not change.
Circular motion is a movement of an object along the circumference of a circle or rotation along a circular path and can either have a constant angular rotation rate and constant speed, or it can exist with a changing rate of rotation.
Think of one of those fairground rides where people sit on dummy horses. Now imagine the horses spin around the post that holds them to the base of the ride. Then you have both rotational motion of the horse and circular motion as the horses move around the ride.
To understand decay in terms of half-life and to solve radioactive dating problems.Suppose a radioactive sample initially contains N0unstable nuclei. These nuclei will decay into stable nuclei, and as they do, the number of unstable nuclei that remain, N(t), will decrease with time. Although there is no way for us to predict exactly when any one nucleus will decay, we can write down an expression for the total number of unstable nuclei that remain after a time t:N(t)=N0e−λt,where λ is known as the decay constant. Note that at t=0, N(t)=N0, the original number of unstable nuclei. N(t) decreases exponentially with time, and as tapproaches infinity, the number of unstable nuclei that remain approaches zero.Part (E) Suppose that an Egyptian farmer claims to have discovered a linen burial cloth used during Egypt's Middle Kingdom some 4000 years ago. Careful analysis shows that the cloth contains 80% of the 14C that it is estimated to have originally contained. How old is the cloth? (years)
Answers
The age of the cloth material is obtained from the calculation as 1843 years .
What is the half life?We know that the half life of a radioactive isotope refers to the time that is taken for only half of the number of the original radioactive isotopes that are present to remain in the sample.
We can be able to obtain the age of the cloth by looking at the amount of the radioactive carbon -14 that is still left in the sample. How do we do that? We have to turn to a formula that says;
0.693/\(t_{\frac{1}{2} }\) = 2.303/tlog (Ao/A)
\(t_{\frac{1}{2} }\) = half life of the material
t = age of the material
Ao = amount initially present
A = Amount present at time t
Then we have;
0.693/5730 = 2.303/tlog (Ao/0.8Ao)
1.21 * 10^-4 = 0.223/t
t = 0.223/1.21 * 10^-4
t = 1843 years
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32. If a ball is given a push so that it has an initial velocity of 2 m/s down a certain inclined plane, then the distance it has rolled after t seconds is s = 2t + t2. How long does it take for the velocity to reach 24 m/s? (a) 2 seconds (b) 4 seconds (c) 5 seconds (d) 11 seconds (e) 12 seconds
Answers
If a ball is given a push so that it has an initial velocity of 2 m/s down a certain inclined plane, then the distance it has rolled after t seconds is s = 2t + t². Then it takes 11 seconds for the velocity to reach 24 m/s. The correct option is D.
To find the time it takes for the velocity of the ball to reach 24 m/s, we need to solve for the time when the velocity function equals 24 m/s.
The velocity function is the derivative of the distance function, so we'll first find the derivative of the distance function s = 2t + t² with respect to time t:
ds/dt = d/dt(2t + t²)
ds/dt = 2 + 2t
Now we can set the velocity function equal to 24 m/s and solve for t:
2 + 2t = 24
Subtracting 2 from both sides:
2t = 22
Dividing both sides by 2:
t = 11
Therefore, it takes 11 seconds for the velocity to reach 24 m/s.
The correct answer is (d) 11 seconds.
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Why can water be used in the cooling system of a car?
Answers
Room temperature is about 77°F. Which temperature is an equivalent temperature?
Answers
Answer:25
Explanation:
Formula(77°F − 32) × 5/9 = 25°C
Answer: The answer is C. 298 K
Explanation:
a sample of carbon monoxide initially at 67.0 °c was heated to 134 °c. if the volume of the carbon monoxide sample is 607.5 ml at 134 °c , what was its volume, , at 67.0 °c?
Answers
A carbon monoxide sample at 67.0 °C has a capacity of 508 ml according to the mixed gas law, assuming constant pressure and the specified volume and temperature.
The combined gas law, which states that (P1 x V1) / T1 = (P2 x V2) / T2, where P is pressure, V is volume, and T is temperature, can be used to address this issue. We can suppose that throughout the heating process, the carbon monoxide sample's pressure stays constant.
The following equation can be used to solve for the unknown volume at 67.0 °C: Given that pressure is constant, (P1 x V1) / T1 = (P2 x V2) / T2, where P1 = P2.
V1 = undefined
T1 = 67.0 °C + 273.15 = 340.15 K
V2 = 607.5 ml
(P1 x V1) T2 = 134 °C + 273.15 = 407.15 K T2 V1 = (P1 x V2 x T1) / (P2 x T2) T1 = (P2 x V2) T2 V1
V1 = (407.15 K / (607.5 ml x 340.15 K))
V1 = 508.6 ml
As a result, the carbon monoxide sample had a volume of 508.5 ml at 67.0 °C.
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In an experiment, a student placed a sheet of paper on a bar magnet, and iron filings were sprinkled on the
sheet of paper. Thereafter, the paper was gently tapped. The diagram below shows the final result of the experiment
Question 1
experiment
a Give the aim of the experiment. (2 marks)
o What conclusion could be drawn from the result
of such an experiment? (2 marks)
c. What could have happened if the iron filings had been replaced with grit? (2 marks)
Answers
Answer:
a. Aim of the experiment: To identify the magnetic fields around the bar magnet.
b. After tapping the paper, the iron filings align themselves according to the lines of the magnetic force of bar magnet. The magnetic field is more concentrated at the ends of poles as most of the iron fillings are attracted at the poles and the pattern form by iron filling shows the magnetic field of the bar magnet.
c. If iron filings will be replaced with grit, there will be no magnetic movement around bar magnet as grit is not a metal and do not have any magnetic properties.
Explanation:
a) The experiment with paper, iron sprinkles and bar magnet was performed to show the presence of the magnetic field around the magnet.
o) In the experiment, when we placed two opposite poles and sprinkled the iron over, the iron filings were aligned between forces applied by the opposite poles that are they attract each other. When the same poles were placed facing each other, the iron sprinkles were arranged away from each other. This shows that opposite poles attract each other while the same poles repel each other.
c) If iron filings were replaced with the grit, the magnetic field will be stronger.
A wave with a frequency of 20 Hz has a wavelength of 4 meters. At what speed will this wave travel?
Answers
Answer: v= 80 m/s
Explanation: speed = wavelength×Frequency
what best describes a reference fram?
Answers
Answer:
A reference frame is that frame to which the qualities of an object are related:
For instance - an object may described by - mass, speed, acceleration, size, etc,
It is important to remember that Newton's Laws of motion do not hold in accelerated reference frames -
Einstein's laws of special relativity are only true in frames that move with contant speed to one another
What is the wavelength?
Answers
what is the unit of destiny what are the basic unit involve in it
Answers
The basic unit involved are kg which is weight of the body and m^3 which is the area of the body
Which sentence describes Newton's third law?
Answers
Option D. The image shows a pattern made by magnetic field lines around the magnet.
What is Newton's third of motion?Newton's third of motion states that for every action, their is equal and opposite reaction.
When a magnet is placed in a magnetic field, it creates magnetic field lines because it is the region of space where its influence is felt.
Thus, the image shows a pattern made by magnetic field lines around the magnet.
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I am traveling at 100 m/s, I hit the brakes and my speed goes down to 50 m/s. It took 30 seconds to slow down. What was my acceleration?
A.5 m/s2
B.-5 m/s2
C.1.7 m/s2
D.-1.7 m/s2
Answers
Answer:
D. -1.7m/s2
Explanation:
the car starts at 100m/s so this is the initial velocity. It ends at 50m/s so this is the final velocity. it took 30 seconds so the time is 30.
\(v_{f}=v_{i}+at\)
\(a=\frac{\left(v_{f}-v_{i}\right)}{t}\)
\(a=\ \frac{\left(50-100\right)}{30}\)
\(a=-1.66666666667\)\(m/s^{2}\)
Therefore, the answer is D
What country landed the first spacecraft on the moon?
Answers
The United States of America was the first country to land a spacecraft on the moon.
The historical event occurred on July 20, 1969, when the Apollo 11 mission successfully placed the lunar module, "Eagle," on the moon's surface. Astronauts Neil Armstrong and Edwin "Buzz" Aldrin became the first human beings to walk on the moon, while Michael Collins orbited above in the command module. This achievement marked a major milestone in space exploration and demonstrated American technological superiority during the Cold War.
This mission marked the first successful soft landing on the moon and was a major milestone in space exploration. The Luna 9 spacecraft was the first of many lunar landers and rovers sent to the moon, laying the foundation for more ambitious lunar missions such as the Apollo 11 mission in 1969, which was the first mission to put humans on the moon.
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A ball tied on a string rotates in a circular path as shown above. The only forces acting on the ball at any point are the weight and of the string. What is the equation for the net centripetal force at point C?
Answers
Answer:
the third one T-W
Explanation:
the direction of the Tension and weight are opposite
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From the choices below, select the one that best describes the difference between distance and displacement.
Distance includes direction,
Distance includes acceleration, displacement does not
Displacement includes direction, distance does not
Distance include speed, displacement, does not
Answers
Displacement includes direction, distance does not
is your answer. hope it helps!
A sound wave has a frequency of 1.5 Hz while traveling at a speed of 50 m/s. What is the wavelength?
Answers
Answer:
33.3m
Explanation:
Recall that for a regular wave, the relationship between, wavelength, frequency and velocity (speed) is given by :
v = fλ,
where:
v = velocity (speed) of the wave = 50m/s
f = frequency of the wave = 1.5 Hz
λ = wavelength (we are asked to find this)
simply substitute the given values into the equation:
v = fλ
50 = 1.5 λ,
λ = 50/1.5
λ = 33.3m
A __ is an instrument used in the photosynthesis lab which contains a prism and displays the total visible spectrum when a light source is passed through the light slit.
Answers
A spectrum is a tool used in the photosynthesis lab to carry out a specific experiment.
The process through which plants convert carbon dioxide, water, and sunshine into oxygen and sugar energy is known as photosynthesis.A spectrum is a tool used in the photosynthesis lab that has a prism that, when a light source is passed through the light slit, shows the whole visible spectrum through the eyepiece.The only region of the electromagnetic spectrum that can be viewed by the human eye is the visible spectrum. It consists of electromagnetic radiation with wavelengths ranging from roughly 400 nm to 700 nm.Although visible light from the sun seems white, it is really composed of several light wavelengths (colors). When white light travels through a prism, the various light wavelengths spread out and create what humans see as a rainbow because the light is twisted at different angles as it travels through the prism. While violet light has the shortest wavelength and most energy, red light has the longest wavelength and the least amount of energy.Consequently, a spectrum is a tool that is utilized in the photosynthesis lab to carry out a particular investigation.
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