in which situation is the magnitude of the total momentum the largest? same magnitude in both situations situation (i) situation (ii)
Answers
Same momentum in both situations. Momentum is a vector. In Situation II the impulses are opposite and partially cancel each other out.
Which of following is most dynamic?
Momentum directly proportional to the object's mass and velocity. Faster speed means more momentum. Therefore, cars traveling at high speed on highways have the most momentum.
How do you know what has more momentum?
p = m v . From this equation we can see that momentum is directly proportional to the mass (m) and velocity (v) of the object. Therefore, the greater the mass of an object or the greater its velocity, the greater its momentum. A large, fast-moving object has more momentum than a small, slow-moving object.
Which object has the greatest momentum and why?
Heavy objects have a more mass. Momentum is a product of mass, and a scalar quantity, and velocity, a vector. Therefore, if two objects have the same velocity, the heavier object with more mass will also have more momentum.
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Related Questions
why a person feel weightlessness in a spacecraft orbiting around a heavenly body
Answers
Answer:
The orbital velocity an aircraft orbiting around a heavenly body is found as follows;
At the orbital velocity, \(F_G\) = \(F_C\)
Where;
\(F_G\) = The gravitational force = \(\dfrac{G \cdot M \cdot m}{R_E^2}\)
\(F_C\) = The centripetal force = \(\dfrac{m \cdot v_0^2}{R_E}\)
Therefore
\(v_0 = \sqrt{\dfrac{G \cdot M}{R_E} }\)
Therefore, at the orbital velocity of the spacecraft, the centripetal force attracting the person away from the central region heavenly body is equal to the gravitational force pulling the person towards the center of the heavenly body (which was felt as her or his weight), and the person feels weightless while inside the orbiting spacecraft
Explanation:
the critical angle for an air glass interface is 30 degrees. when a light ray in air is incident to the surface, if the reflected ray is 100% polarized, what is the angle of the refracted ray
Answers
The critical angle (θ\(_{c}\)) for an air-glass interface is the angle of incidence at which the refracted ray becomes parallel to the interface. When the angle of incidence exceeds the critical angle, total internal reflection occurs. Therefore, the angle of the refracted ray is 60 degrees.
Given that the reflected ray is 100% polarized, we can assume that the incident light is incident at the polarizing angle, which is the angle of incidence at which the reflected and refracted rays are perpendicular to each other.
In this case, the polarizing angle is equal to the angle of incidence (θ\(_{I}\)) plus the angle of refraction (θ\(_{r}\)):
θ\(_{I}\)+ θ\(_{r}\)= 90 degrees
Since the refracted ray is perpendicular to the reflected ray, the angle of incidence and angle of refraction are complementary angles:
θ\(_{I}\)+ θ\(_{r}\) = 90 degrees
θ\(_{I}\) = 90 degrees - θ\(_{r}\)
Now, let's find the angle of refraction (θ\(_{r}\)) using the critical angle (θ\(_{I}\)) of 30 degrees:
θ\(_{I}\) = 90 degrees - θ\(_{r}\)
θ\(_{c}\)= 30 degrees
Since the critical angle is the angle of incidence at which total internal reflection occurs, the angle of incidence in this case is equal to the critical angle:
θ\(_{I}\) = θ\(_{c}\)
Substituting the values:
30 degrees = 90 degrees - θ\(_{r}\)
Solving for θ\(_{r}\):
θ\(_{r}\) = 90 degrees - 30 degrees
θ\(_{r}\)= 60 degrees
Therefore, the angle of the refracted ray is 60 degrees.
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A resistor and inductor are connected to a 9.0 V battery by a switch as shown. The moment the switch is closed, current flows through the circuit. The resistor has a resistance of R = 220 2 and the inductor has an inductance of L = 130 mH. Randomized Variables R 220Ω 130 ml R = - 9.0V L 00000000 Part (a) At time I = 0 the switch is closed and current flows through the circuit. The current increases with time and eventually reaches a steady Calculate the maximum current imax in units of milliamps
Answers
According to the question the maximum current in the circuit is 40.45 mA.
What is circuit?A circuit is an interconnected network of electrical components which, when connected to a power source, forms a closed loop that allows electrical current to flow. This current is then regulated by components such as resistors, capacitors, and transistors, which all work together to form a functioning circuit. Circuits are used in many everyday applications, such as electronics, computers, and even automobiles.
The maximum current in the circuit is given by the expression:
\(I_{max} = \frac{V}{R + \frac{1}{\omega L}}\)
Plugging these values into the expression, we get:
\(I_{max} = \frac{9.0}{220 + \frac{1}{0 \cdot 130 \cdot 10^{-3}}}\)
Simplifying, we get:
\(I_{max} = 40.45 mA\)
Therefore, the maximum current in the circuit is 40.45 mA.
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continental plates formed the Himalayan mountain range.
Based on this information, which type of boundary exists between the Indian and Eurasian Plates?
Answers
Based on the information provided, the type of boundary that exists between the Indian and Eurasian Plates is a convergent boundary.
Convergent boundaries occur when two tectonic plates move towards each other. In the case of the Indian and Eurasian Plates, they are converging, resulting in the formation of the Himalayan mountain range. This type of boundary is also known as a collision boundary because the two plates collide and their continental crusts are forced together.
At the convergent boundary between the Indian and Eurasian Plates, the collision and compression of the crust lead to intense geological activity, including the uplift and folding of rocks, creating the towering peaks of the Himalayas. Additionally, the collision between these plates has also caused seismic activity, making the region prone to earthquakes.
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Question #8. Don’t pay attention to question number 9 it’s only there because I couldn’t crop it out
Answers
Given:
The distance traveled towards the north is d= 12 km
The velocity is v = 6.5 km/h
To find: the time
Explanation:
The formula to calculate time is
\(\begin{gathered} v=\frac{d}{t} \\ t=\frac{d}{v} \end{gathered}\)Substituting the values, the time will be
\(\begin{gathered} t=\text{ }\frac{12}{6.5} \\ =1.86\text{ h} \end{gathered}\)Final Answer: The time taken is 1.86 h
I need answers to these physics problems. (See picture). Also, i'm not sure if the one's I circled are correct
Answers
The length of the vector is proportional to the size of the force.
The wheelchair is not accelerating, so the forces on it are balanced.
In a free-body diagram of the wheelchair, force due to gravity points down, normal force points up, force pushing the wheelchair points forward, friction resisting the motion points backward.
For the force diagram:
In picture 1: F gravity points down; F normal points upIn picture 2: F gravity points down; F tension points upIn picture 3: F gravity points down; F spring points up.What are forces?Forces are a push or pull agents that causes a change in the state of a body when they are applied to the body.
Unbalanced forces cause acceleration of a body.
In a free-body diagram, the mass (force) on an object is represented by a vector.
The length of the vector is proportional to the size of the force. Suppose you push a wheelchair forward at constant velocity. The wheelchair is not accelerating, so the forces on it are balanced. In a free-body diagram of the wheelchair, the vector for the force due to gravity points down, the vector for the normal force points up, the vector for your force pushing the wheelchair points forward, and the vector for the force of friction resisting the motion points backward.
Considering the picture visual representation of the forces between many interacting objects or the force diagram:
In picture 1: F gravity points down; F normal points up
In picture 2: F gravity points down; F tension points up
In picture 3: F gravity points down; F spring points up.
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What is the frequency of a mechanical wave that has a
velocity of 1.70 m/s and a wavelength æf 12.05 m?
Answers
Explanation:
v= (f) x ( lambda)
1.7 ms^-1/12.05 m = f =o.14 hz
While Robert was helping his father in the garden, he pushed a shovel into the ground to dig a hole in the dirt. He picked up a shrub, carried it to the
hole, and held it while he lowered it into the hole. During which parts of this process does Robert NOT do work? Choose the two statements that apply.
A. He pushed a shovel into the ground to dig a hole.
B. He picked up a shrub.
C. He carried it to the hole
D. He held it while he lowered it into the hole
Answers
Work done is given by the change in kinetic energy of an object
The kinetic energy of the shovel, the shrub, and in Robert's movement were changed, therefore, work is done in the given processes,Reason:
Work is done when the total energy of object is affected by the application of force on the object over a distance
Therefore;
In option A, pushing the shovel into ground (to dig out the dirt) the requires the application of a force (push) over a distance, (into and out of the ground) therefore work is doneIn option B, picking the shrub up gives it gravitational potential energy, therefore, work is doneIn option C, carrying the shrub to the hole does visible workIn option D, holding the shrub while lowering it into the hole does work by preventing the shrub from falling randomlyTherefore, work is done in the given processes
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A. It Implies That M Is Finitely Generated. B. It Implies That M Has Nonzero Elements Of Nonzero Order. C. When Every Non-Null Element Has Null . D. In The Case That The Ring R Is A Body. E. None Of The Above Alternatives Gives A
Which of the following alternatives give a true statement. Justify your answer.
A modulus M over a ring R has a finite basis:
a. It implies that M is finitely generated.
b. It implies that M has nonzero elements of nonzero order.
C. When every non-null element has null .
d. in the case that the ring R is a body.
e. None of the above alternatives gives a true statement.
Which of the following statements are true?
a. If a subset of a module generates that whole module, then the subset cannot be
empty.
b. Every submodule S of a module M verifies the inequality C. Two different subsets of M have to generate two different submodules of M.
d. If S generates a submodule N of the module M, then contains S.
e. Neither statement is true.
Answers
The correct answer is e. None of the above alternatives gives a true statement. None of the statements in options a, b, c, and d are true when it comes to a modulus M over a ring R having a finite basis.
When a modulus M can be formed entirely from a finite set of elements, the modulus M is said to be finitely generated. M's finite basis does not, however, automatically imply that M is finitely generated. A basis is a set of linearly independent elements, and it might not be enough to produce all of the components of the modulus.
According to the assertion in option b, M must include nonzero items of nonzero order if it has a finite basis. This is untrue, though. The smallest positive number k, such that the element raised to the power of k equals the identity element, is referred to as the order of an element.
According to option c, every non-null element in a modulus with a finite basis has a null. Nevertheless, this claim is likewise untrue. It is possible for a modulus with a finite basis to have non-null elements without a null element.
According to option d, a ring R is a body, or a field, and only then can a modulus have a finite basis. However, this assertion is also untrue. Even though the ring R is not a field, a modulus can nonetheless have a finite basis. None of the given alternatives provides a true statement about a modulus M over a ring R having a finite basis.
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a satellite goes around the earth with constant speed with a circular orbit does it have acceleration. explain?
Answers
Answer:
No, It hasn't acceleration because it doesn't change the velocity with respect to time.
What acceleration can a 1-newton force give to a 1-kilogram object?
Answers
Answer: 1 m/s/s
Explanation: One Newton is defined as the amount of force required to give a 1-kg mass an acceleration of 1 m/s/s.
If the initial speed of the ball was increased, the time of flight of the ball would
1) decrease 2) increase 3) remain the same
Answers
Answer:2 increase
Explanation:
the microwave radiation left over from the big bang explosion of the universe has an average energy density of 4.19 × 10–14 j/m3. what is the rms value of the electric field of this radiation?
Answers
The rms value of the electric field of the microwave radiation left over from the big bang explosion is approximately 6.68 x 10⁻³ V/m.
To find the rms value of the electric field, we can follow these steps:
1. Understand the relationship between energy density (u) and the electric field (E) for electromagnetic radiation. The energy density can be given by the formula:
u = (1/2) * ε₀ * E², where ε₀ is the vacuum permittivity, which is approximately 8.85 × 10⁻¹² F/m.
2. Rearrange the formula to solve for the electric field E:
E = √(2u/ε₀)
3. Plug in the given energy density (u = 4.19 × 10⁻¹⁴ J/m³) and the vacuum permittivity (ε₀ = 8.85 × 10⁻¹² F/m) into the formula:
E = √(2 * 4.19 × 10⁻¹⁴ J/m³ / 8.85 × 10⁻¹² F/m) = 9.46 x 10⁻³ V/m
4. Calculate the rms value of the electric field:
E = 9.46 x 10⁻³/ √2 ≈ 6.68 x 10⁻³ V/m
So, the rms value of the electric field is approximately 6.68 x 10⁻³ V/m.
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how does the epa calculator determine co2 for gas VS electric cars?
Answers
Answer:
The Greenhouse Gas Equivalencies calculator allows you to convert emissions or energy data to the equivalent amount of carbon dioxide (CO2) emissions from using that amount. The calculator helps you translate abstract measurements into concrete terms you can understand, such as the annual emissions from cars, households, or power plants. This calculator may be useful in communicating your greenhouse gas reduction strategy, reduction targets, or other initiatives aimed at reducing greenhouse gas emissions.
Explanation:
The Greenhouse Gas Equivalencies calculator allows you to convert emissions or energy data to the equivalent amount of carbon dioxide (CO2) emissions from using that amount. The calculator helps you translate abstract measurements into concrete terms you can understand, such as the annual emissions from cars, households, or power plants. This calculator may be useful in communicating your greenhouse gas reduction strategy, reduction targets, or other initiatives aimed at reducing greenhouse gas emissions.
Question 3 of 10
Which two options would increase the electric force between two charged
particles?
A. Decrease the charge of one of the particles.
B. Increase the distance between the particles.
C. Decrease the charge of both particles.
D. Increase the charge of one of the particles.
E. Decrease the distance between the particles.
Answers
Answer:34
Explanation:
first carry the one, then add.
How fast is a plane flying if it takes 3 hours to travel 3,500 km?
Answers
Answer:
1166.67 km/h
Explanation:
3500/3
= 1166.67 km/h
Hope this helped!
Answer:
HELPP
Explanation:
what is the thinnest film (but not zero) of mgf2 ( n = 1.38) on glass that produces a strong reflection for orange light with a wavelength of 603 nm ?
Answers
The thinnest film of MgF2 (n = 1.38) on glass that produces a strong reflection for orange light with a wavelength of 603 nm can be calculated using the formula for constructive interference in thin films:
t = (mλ) / (2n)
where t is the thickness of the film, m is the order of interference (for the thinnest film, m = 1), λ is the wavelength of light in the medium (divide by the refractive index of the film), and n is the refractive index of the film.
For this case:
λ' = 603 nm / 1.38 ≈ 436.96 nm
t = (1 * 436.96) / (2 * 1.38) ≈ 158.4 nm
The thinnest MgF2 film on glass that produces a strong reflection for orange light with a wavelength of 603 nm is approximately 158.4 nm thick.
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what region of the solar spectrum can cause a dangerous sunburn
Answers
:
ultraviolet B
Explanation:
The density of water is 1.0 gram per milliliter at 4 degrees Celsius.
Shelby drops a spoonful of sugar into water at this temperature and it
sinks to the bottom of the container. Compare the densities of the sugar
and water and explain how this affects the position of the sugar in the
liquid water.
Answers
Sugar molecules present at the bottom of solution due to more mass.
Which is more denser water or sugar?Table sugar is more dense than water due to the presence of more mass of sugar molecule as compared to water. We know that denser objects has more mass so that's why sugar molecules present at the bottom of solution due to more mass.
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Heat energy always moves from a _ _ _ place to a _ _ _ _ _ _ place. The three methods of heat transfer are?
Plz help i need ASAP
Answers
Answer:Heat can travel from one place to another in three ways: Conduction, Convection and Radiation.
Explanation:
SUMMER BUTLER:
Mr. Butler and a box of Twinkies have a combined mass of 115kg. They reach a maximum speed of 5 m/s
when going down a water slide at Kings Island. The height of the water slide used is 8 meters high.
Calculate the GPE and KE of Mr. Butler and a box of Twinkies:
GPE=
KE=
Answers
The GPE of Mr. Butler and a box of Twinkies is 9016 J and KE of Mr. Butler and a box of Twinkies is 287.5 J
GPE = m g h
GPE = Gravitational potential energy
m = Mass
g = Acceleration due to gravity
h = Height
m = 115 kg
g = 9.8 m / s²
h = 8 m
GPE = 115 * 9.8 * 8
GPE = 9016 J
KE = 1 / 2 mv²
KE = Kinetic energy
v = Velocity
v = 5 m / s
KE = 1 / 2 * 115 * 5
KE = 287.5 J
Therefore,
GPE = 9016 JKE = 287.5 JTo know more about GPE and KE
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as the distance between two object increases how does the force of gravity between them decrease
Answers
define national parks of nepal ?
Answers
Answer:
A national park is one such protected area for the special species of flora and fauna of the region. In Nepal, there are numerous national parks to conserve and protect wildlife and their natural habitat.
If a car has a mass of 4000 kg and the force applied to it is 10000 N. What is its acceleration?
Answers
Answer:
2.5 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
\(a = \frac{f}{m} \\ \)
f is the force
m is the mass
From the question we have
\(a = \frac{10000}{4000} = 2.5 \\ \)
We have the final answer as
2.5 m/s²Hope this helps you
I need helpppp :((((((
Answers
Answer: c. The electric force increases
Explanation:
If the distance between two charged particles decreases, the electric force between them increases.
According to Coulomb's Law, the electric force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the equation can be represented as:
F = k * (q1 * q2) / r^2
Where:
F represents the electric force between the particles.
k is the electrostatic constant.
q1 and q2 are the charges of the particles.
r is the distance between the particles.
As the distance (r) between the particles decreases, the denominator of the equation (r^2) becomes smaller, causing the overall electric force (F) to increase. Conversely, if the distance between the charged particles increases, the electric force between them decreases. This inverse relationship between the distance and electric force is a fundamental characteristic of the electrostatic interaction between charged objects.
In a ray diagram showing refraction, the incident ray and the refracted ray...
A.Create equal angles
B.Are on the same side of the line that separates the two media
C.Are on the opposite sides of the line that separates the two media
D. Are the same length
Answers
which of the following is not a lever?
a. winch
b. scissors
c. can openers
d. tweezers
Answers
Answer:
a?
Explanation:yes it is a
If (x + 8) is a factor of f(x), which of the following must be true?
Both x = -8 and x = 8 are roots of f(x).
Neither x = -8 nor x = 8 is a root of f(x).
f(-8) = 0
Of(8) = 0
?
Answers
Answer:
c <3.
Explanation:
trust me :D
Answer:
f(–8) = 0
Explanation:
just took the quiz
an automobile with 0.241 m radius tires travels 80000 km before wearing them out. how many revolutions do the tires make, neglecting any backing up and any change in radius due to wear? (you do not need to enter any units.)
Answers
To travel 80,000 km, tires with radius of 0.241 m should make 52,810,260 revolutions.
The circumference of a circle is given by:
C = 2
Where:
C = circumference
r = radius of the circle
In the given problem, the distance that the tires has travelled is equal to:
distance = number of revolutions x tire circumference
r = radius of the tire = 0.241 m
Hence,
C = 2π x 0.241 = 1.515 m
distance = 80,000 km = 80,000,000 m
Therefore,
number of revolutions = 80,000,000 / 1.515 = 52,810,260 revolutions.
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An ostrich with a mass of 146 kg is running to the right with a velocity of 17 m/s. Find the momentum of the ostrich. (Numerical value only)
Answers
2482 kg. The answer is also in the image
