Answers
A red one with the same mass that is 10 feet above the bottom of a nearby 50-foot-deep well will undergo a larger change in gravitational potential energy when dropped.
What is Gravitational potential energy?This is referred to as the energy an object which is possessed because of its position in a gravitational field.
Potential energy depends on an arbitrary zero point, not an absolute, like sea level which therefore explains why the red ball with the 10 foot drop into a well has more potential energy than the blue ball with only a 20 foot drop to Earth's surface.
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Related Questions
a 0.2 kg vase has a potential energy of 100j
Answers
The height above the ground in which the vase is raised is 51.02 m.
What is the height of the vase?
The height above the ground in which the vase is raised is calculated by applying the formula for gravitational potential energy.
Gravitational potential energy of an object is the energy possessed by the object due to the object's position above the ground.
Mathematically, the formula for gravitational potential energy is given as;
P.E = mgh
where;
m is the mass of the objectg is acceleration due to gravityh is the height above the ground in which the object is raisedThe given parameters include;
mass of the vase = 0.2 kg
potential energy of the vase = 100 J
acceleration due to gravity = 9.8 m/s²
h = P.E / mg
h = (100) / (0.2 x 9.8)
h = 51.02 m
Thus, the height of the vase is a function of the potential energy and mass of the vase.
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The complete question is below:
a 0.2 kg vase has a potential energy of 100j. What is the height of the vase?
Which base is a strong base? How
do you know?
MOH → M+ + OH-
B + H2O H BH+ + OH-
Answers
Answer:
Note that while calcium hydroxide, barium hydroxide, and strontium hydroxide are strong bases, they are not very soluble in water.
...
Examples of Strong Bases.
Base Formula Ions
sodium hydroxide NaOH Na+(aq) + OH-(aq)
potassium hydroxide KOH K+(aq) + OH-(aq)
lithium hydroxide LiOH Li+(aq) + OH-(aq)
In the setup shown above, a student uses motion detector 1 to measure the speed v, of a cart with mass m before it collides with and sticks to a stationary.
Answers
A student uses motion detector 1 to measure the speed v, of a cart with mass m before it collides with and sticks to a stationary is 2mgl.
Speed is defined as. The rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude.
Speed is defined as the rate of change of distance with time. It has the dimension of distance by time. Thus, the SI unit of speed is given as the combination of the basic unit of distance and the basic unit of Time. Thus, the SI unit of speed is metre per second.
Mass, in physics, quantitative measure of inertia, a fundamental property of all matter. It is, in effect, the resistance that a body of matter offers to a change in its speed or position upon the application of a force.
M/(M + m)
p=mv1
p=mv
mv1=(m+M)Vf
Vf/v1=m/m+M
Question)-n the setup shown above, a student uses motion detector 1 to measure the speed vi of a cart with mass m before it collides with and sticks to a stationary cart with mass M. Motion detector 2 measures the speed vf of the carts after the collision. The student repeats the experiment several times using different values of vi and creates a graph of vf as a function of vi. The slope of this graph is most nearly equal to?
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Please help! ❤️
I’ll make you the Brainlyest, I can’t get this one wrong.
Answers
A space vehicle approaches a space station in orbit. The intent of the engineers is to have the vehicle slowly approach, reducing velocity, until a docking maneuver is completed and the vehicle is attached to the station. How does the total momentum of the docked vehicle and station compare to the momentum of each object before the docking maneuver? greater momentum same momentum less momentum
Answers
Answer:
c. same momentum
Explanation:
got it correct on edge2020
Answer:
Explanation:c. same momentum
Explanation:
got it correct on edge2020
Suppose all the mass of the Earth were compacted into a small spherical ball.
What radius must the sphere have so that the acceleration due to gravity at the Earth's new surface was equal to the acceleration due to gravity at the surface of the Sun?
( MSun=1.99×1030kg , RSun=6.96×108m )
Express your answer with the appropriate units.
Answers
Answer:
F = G M m / R^2 a = G M / R^2
aS / aE = (MS / RS^2) / (ME / RE^2)
aS / aE = 329390 * RE^2 / RS^2) = 1 If acceleration due gravity equal
RE^2 = 1 / 329290 * (6.96E8)^2
RE^2 = 1.471 E12
RE = 1.213E6 m
actual RE = 6.38E6 m (average density of sun < that of earth)
An object with a mass of 2 kg is moving with a velocity of 3 m/s when a 5 N net force
acts upon it. What will the object's velocity be if the force acts for 7 S?
Answers
By Newton's second law, the net force exerted on the object makes it undergo an acceleration a such that
(2 kg) a = 5 N
so that it is accelerated a = 2.5 m/s^2.
Since the object starts with velocity 3 m/s, after 7 s its acceleration will make it speed up to
3 m/s + (2.5 m/s^2) (7 s) = 20.5 m/s
Which of the following does not affect gas pressure
Answers
Answer:
I NEED OPTIONS
Explanation:
Can someone please help me with this !!!!
Answers
Answer:
I'm not sure but I think it's 4.5 v
a cylindrical solid object of mass 400g and radius of 20cm is rolling down as inclined plane at speed of 3m/s. calculate the kinetic energy of the given object.
Answers
Answer:2.7 joules
Explanation:
Rolling Cylinder Kinetic Energy.
A cylindrical solid object of mass 400g and radius of 20cm is rolling down as inclined plane at speed of 3m/s. calculate the kinetic energy of the given object.
To calculate the kinetic energy of a rolling cylinder, we need to use the formula for rotational kinetic energy, which is:
K_rotational = (1/2) * I * ω^2
where I is the moment of inertia and ω is the angular velocity.
For a cylinder rolling without slipping down an inclined plane, the total kinetic energy is the sum of translational kinetic energy and rotational kinetic energy, which is:
K_total = K_translational + K_rotational
where K_translational is given by:
K_translational = (1/2) * m * v^2
where m is the mass of the cylinder, and v is its linear velocity.
First, let's find the moment of inertia of the cylinder. For a solid cylinder, the moment of inertia is given by:
I = (1/2) * m * r^2
where r is the radius of the cylinder. Substituting the given values, we get:
I = (1/2) * 0.4 kg * (0.2 m)^2 = 0.008 kg·m^2
Next, let's find the linear velocity of the cylinder. The speed of the cylinder is given as 3 m/s, so the linear velocity is:
v = 3 m/s
Now we can calculate the translational kinetic energy:
K_translational = (1/2) * m * v^2 = (1/2) * 0.4 kg * (3 m/s)^2 = 0.9 J
Finally, we can calculate the rotational kinetic energy:
K_rotational = (1/2) * I * ω^2
Since the cylinder is rolling without slipping, the linear velocity is related to the angular velocity as:
v = ω * r
Rearranging this equation, we get:
ω = v / r = 3 m/s / 0.2 m = 15 rad/s
Substituting the values, we get:
K_rotational = (1/2) * 0.008 kg·m^2 * (15 rad/s)^2 = 1.8 J
Therefore, the total kinetic energy of the cylinder is:
K_total = K_translational + K_rotational = 0.9 J + 1.8 J = 2.7 J
Therefore, the kinetic energy of the given object is 2.7 Joules.
A chair is thrown upward from a balcony that's 96 ft in the air, at an initial velocity of 16 ft/s.
How many seconds does the chair take to reach its highest height?
Answers
Answer:
t = 6 s
Explanation:
Given that,
A chair is thrown upward from a balcony that's 96 ft in the air, d = 96 ft
The initial velocity of chair, u = 16 ft/s
We need to find how many seconds does the chair take to reach its highest height. Let the time is t.
\(t=\dfrac{d}{v}\\\\t=\dfrac{96\ ft}{16\ ft/s}\\\\=6\ s\)
Hence, the chair take 6 seconds to reach its maximum height.
A train travels between two stations that are 63 km apart at an average speed of 35 m/s. How long after leaving the first station did the train arrive at the second station?
Answers
A train travels between two stations that are 63 km apart at an average speed of 35 m/s. Time taken by train after leaving the first station and arrive at the second station 1.8 sec.
What is speed?The speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.
time = Distance / speed
= 63/35.
= 1.8 sec
A train travels between two stations that are 63 km apart at an average speed of 35 m/s. Time taken by train after leaving the first station and arrive at the second station 1.8 sec.
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Approximately where is it currently high tide on Earth? Group of answer choices wherever it is currently noon anywhere that ocean water laps upon the shore on the portion of Earth facing directly toward the Moon and on the portion of Earth facing directly away from the Moon only on the portion of the Earth facing directly toward the Moon
Answers
Answer:
Option D, only on the portion of the Earth facing directly toward the Moon
Explanation:
Tides are caused by the gravitational pull of moon. The part of earth that faces the moon experiences the highest gravitational force and hence the high tides will occur in this regions only. The regions that do not faces the moon experiences low tides. It is the gravity of moon that attracts the ocean water towards itself.
Hence, Option D is correct
What is the average speed between the times t = 4s and t = 12 s?
0.50m/s
0.25m/s
-0.50m/s
-0.25 m/s
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I need this done pls
Answers
Answer:
all the details are in the attached picture, the answers are marked with colour.
Cual es la Ecuación de velocidad de una onda en función del índice de la amplitud de una cuerda
Answers
Answer:
Well velocity is the varaible with direction
Explanation:
Two kg of water is contained in a piston-cylinder assembly, initially at 10 bar and 200°C. The water is slowly heated at constant pressure to a final state. If the heat transfer for the process is 1740 kJ, determine the temperature at the final state, in °C, and the work, in kJ. Kinetic and potential energy effects are negligible.
Answers
Answer:
Explanation:
Given that:
mass of water = 2kg
Pressure P₁ = 10 bar
temperature T₁ = 200⁰ C
Obtaining the following value from superheated tables at P₁ = 10 bar and T₁ = 200⁰ C
v₁ = 0.2060 m³/kg
h₁ = 2827.9 kJ/kg
The heat transfer Q₁₋₂ = 1740 kJ
Using the energy balance equation:
Q₁₋₂ = m(h₂ - h₁)
1740 = 2(h₂ - 2827.9)
1740 = 2h₂ - 5655.8
1740 + 5655.8 = 2h₂
7395.8 = 2h₂
h₂ = 7395.8/2
h₂ = 3697.9 kJ/kg
Since P₁ = P₂ = 10 bar
Using the superheated table at P₂ = 10 bar and h₂ = 3697.9 kJ/kg;
v₂ = 0.4011 m³/kg
The temperature at final state = 600 °C
The work done \(W_{1-2} = \int P dv\)
\(W_{1-2} = P\times m (V_2-V_1)\)
= (10×10² kPa)×2kg (0.4011 - 0.2060) m³/kg
= (10×10² kPa)×2kg × 0.1951 m³/kg
= 390.2 kJ
a. Fill in the blanks in the following paragraph to correctly identify four principles of the
second law of thermodynamics.
Heat naturally flows from an object that has a _____ temperature to an object that has a ____ temperature. Heat can be made to flow in the reverse direction if ____ is done. A machine can never have an efficiency of ____. This means that heat energy can never be fully converted into ____ energy.
Answers
Answer:
higher, lower, work, 100%, mechanical
A satellite with a mass of 200 kg fires its engines to increase velocity, therebyincreasing the size of its orbit about Earth. As a result, it moves from acircular orbit of radius 7.5 × 106 m to an orbit of radius 7.7 x 106 m. What isthe approximate change in gravitational force from Earth as a result of thischange in the satellite's orbit? (Recall that Earth has a mass of 5.97 x 1024 kgand G = 6.67 x 10-¹1 N-m²/kg².)A. -59 NB. -112 NC. -73 ND. -32 NSUBMIT
Answers
Given:
The mass of the satellite is m = 200 kg
The initial radius of the circular orbit is
\(r_i=7.5\times10^6\text{ m}\)The final radius of the circular orbit is
\(r_f=7.7\times10^6\text{ m}\)The mass of the earth is
\(M=5.97\times10^{24}\text{ kg}\)Also, the gravitational constant is
\(G=\text{ 6.67}\times10^{-11}\text{ N m}^2\text{ /kg}^2\)To find the approximate change in gravitational force.
Explanation:
In order to calculate the approximate change in the gravitational force, we have to find the difference between the initial and final gravitational forces.
The initial gravitational force can be calculated as
\(\begin{gathered} F_i=\frac{GmM}{(r_i)^2} \\ =\frac{6.67\times10^{-11}\times200\times5.97\times10^{24}}{(7.5\times10^6)^2} \\ =\text{ 1415.82 N} \end{gathered}\)The final gravitational force can be calculated as
\(\begin{gathered} F_f=\frac{GmM}{(r_f)^2} \\ =\frac{6.67\times10^{-11}\times200\times5.97\times10^{24}}{(7.7\times10^6)^2} \\ =1343.23\text{ N} \end{gathered}\)The approximate change can be calculated as
\(\begin{gathered} \Delta F=F_f-F_i \\ =1343.23-1415.82 \\ =-72.6\text{ N} \\ \approx-73\text{ N} \end{gathered}\)Final Answer: The approximate change in the gravitational force is -73 N
A bird flies 5km at a speed of 30 km/h. For how long
did the bird travel?
Answers
Answer:
6 hours because 6×5=30 so 6 hours is the right answer
Is clinical depression associated with eating disorders yes or no
Answers
Yes, a symptom of depression is a loss of appetite, and eating disorders are often developed as a result of an unhealthy coping mechanism with life; therefore, people with depression can get eating disorders and vice versa. They go hand in hand.
If an electron emits 3 eV of energy, what is the corresponding wavelength of the emitted photon?
Answers
Answer:
The wavelength of the emitted photon is 413.6 nm
Explanation:
Given;
energy of the emitted photon, E = 3 eV = 3 x 1.602 x 10⁻¹⁹ J
speed of light, c = 3 x 10⁸ m/s
The energy of the emitted photon is given by;
E = hf
where;
h is Planck's constant = 6.626 x 10⁻³⁴ J/s
f is the frequency of the light = c / λ
λ is the wavelength
\(E = \frac{hc}{\lambda}\\\\\lambda = \frac{hc}{E}\\\\\lambda = \frac{(6.626*10^{-34})(3*10^8)}{3*1.602*10^{-19}}\\\\\lambda = 4.136 *10^{-7} \ m\\\\\lambda = 413.6 *10^{-9} \ m\\\\\lambda = 413.6 \ nm\)
Therefore, the wavelength of the emitted photon is 413.6 nm
a question was asked by a teacher to a student. She gave the student a jumbled word and told him to make words out of it. The jumbled word is gzeysktqix. Now you know what to do. see ya!
Answers
When the teacher asked the student to make words out of the jumbled word gzeysktqix, the student was being tested on his ability to unscramble words. Unscrambling words is the process of taking a word or series of letters that are out of order and rearranging them to form a word that makes sense.
When trying to unscramble a word, it is important to look for any patterns that can help identify smaller words within the jumbled letters. This can help make the process easier and quicker. For example, in the jumbled word gzeysktqix, one might notice that the letters "sktqix" appear together.
This could indicate that these letters could potentially form a word. By looking at the remaining letters, one could notice that the letters "g", "z", "e", and "y" could also form smaller words. After some rearranging, the letters can be unscrambled to form the words "sky", "zig", "sex", and "yet". These are just a few examples, as there are likely many other words that can be formed from this jumbled word.
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if the body is floating in a liquid then can we say that the rise in the level of the liquid is equal to the height of the body
Answers
Yes, if a body is floating in a liquid, the rise in the liquid level is equal to the body height. This phenomenon is known as Archimedes' principle.
Archimedes' principle says when a body is immersed in a fluid (liquid or gas), it experiences an upward buoyant force equal to the weight of the fluid displaced by the body. Buoyant forces act in the opposite direction to gravity.
When a body floats in a liquid, it displaces a volume of liquid equal to its volume. As a result, the liquid level rises by an amount equal to the height of the submerged part of the body.
This principle holds for objects that float or are partially immersed in a liquid, such as a buoyant boat or a floating object. However, if the body sinks completely into the liquid, the liquid level rise will no longer be equal to its height. Instead, it depends on the density and volume of the submerged object.
can any one help me with this?
Answers
(1.736+9.6435)÷3.22=
Answers
The answer is 3.53400621
Reduce the expression, if possible, by cancelling common factors.
Answer: 3.53400621
Explanation: Hope this helped! :)
14. Use the kinetic molecular theory to explain why on a cold autumn morning a camper's air mattress may
appear to be somewhat flatter than it was when blown up the afternoon before. Assume no leaks.
Answers
Answer:
The kinetic molecular theory states that all matter is made up of particles that are in constant motion. On a cold autumn morning, the air particles in the air mattress would have slowed down and become more compact. This would cause the air mattress to become flatter than it was when it was initially blown up the afternoon before, since there would be fewer air particles inside the mattress to take up space.
Explanation:
Thanks for the Question!
i need some help getting started on an essay for physics. i decided on the topic of roller costers and dont know how to start it. see the image on my requirements.
Answers
Explanation:
force , motion , electric current
Torque can be best described as which of the following? Give an example of both a force and a torque and explain why in a couple of sentences.
A. Rotational force.
B. Rotational velocity.
C. Rotational energy.
D. Rotational power.
E. All of the above.
Answers
Answer: rotational force
Explanation:
Torque is the twisting force which cause rotation and the axis of rotation is the point at which the object rotates.
Torque is a rotational force as it leads to the rotation of an object about an axis. Force simply means a pull or push. When an unbalanced ball acts on a force, the ball, the ball will be moved towards the linear motion.
Then, the unbalanced force that is acting in the ball produces torque which causes the ball's rotational motion.
The Torque is best described as a rotational force.
It is the force that causes an object to rotate. Torque is measured in Newton-meters (N-m).
An example of a force is the force of gravity. When you hold a ball in your hand, the force of gravity is pulling down on the ball.
However, the ball is not rotating because the force of gravity is being counteracted by the force of your hand pushing up on the ball.
An example of a torque is when you use a wrench to loosen a bolt. When you apply force to the wrench, you are creating a torque that is trying to turn the bolt.
The more force you apply, the greater the torque.
Torque is not the same as rotational velocity. Rotational velocity is the rate at which an object is rotating. It is measured in radians per second (rad/s).
Torque is also not the same as rotational energy.
Rotational energy is the energy that an object has due to its rotation.
It is measured in joules (J).
Torque is also not the same as rotational power. Rotational power is the rate at which rotational energy is transferred. It is measured in watts (W).
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A group of students were playing basketball together during recess. The temperature outside was 30.5 oC (87 oF) and the sun was out. The students ran, shot baskets, and dribbled the ball for 30 minutes. When they finished their game some of the students made the following comments:
Answers
Our muscles need more oxygen to make energy (in the form of ATP) while we workout.
When the respiratory rate picks up to fulfill this need, more oxygen can enter the body and more carbon dioxide can be exhaled.
Student 3 is breathing more forcefully than usual in this situation because of the high temperature and physical activity.
The respiratory system is the organ system engaged in this process.
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# complete question:
A group of students were playing basketball together during recess. The temperature outside was 30.5 oC (87 oF) and the sun was out. The students ran, shot baskets, and dribbled the ball for 30 minutes. When they finished their game some of the students made the following comments:
Student 1: Wow! I am so hot and sweaty! I need some water to cool down.
Student 2: My cheeks are really red.
Student 3: I am breathing so hard, I can barely catch my breath!
Explain what is happening to the students and how their bodies are trying to maintain homeostasis. Be sure to include any of the organ systems involved with each student.