2. A 55 kg woman has a momentum of 200 kg m/s. What is her velocity?
Use: V= p/m to determine the velocity.
Hurry And Help !!!!!
Answers
Answer:
\(\boxed {\tt 3.63636364 \ m/s}\)
Explanation:
Velocity can be found using the following formula:
\(v=\frac{p}{m}\)
where p is the momentum and m is the mass.
The woman has a mass of 55 kilograms and a momentum of 200 kilogram meters per second.
\(p= 200 \ kgm/s\\m=55 \ kg\)
Substitute the values into the formula.
\(v=\frac{200 \ kg m/s}{55 \ kg}\)
Divide. Note that the kilograms, or kg, will cancel each other out.
\(v=\frac{200 \ m/s}{55}\)
\(v= 3.63636364 \ m/s\)
The woman's velocity is 3.63636364 meters per second.
Related Questions
What types of human and animal behavior are "complex, unlearned, and rigidly patterned"?
Answers
Answer:
Instincts
Explanation:
instincts are complex, unlearned behaviors that are present throughout a species and genetically transmitted.
Which of the following statements is correct?
A) The internal energy of a system increases when more work is done by the system than heat was flowing into the system.
B) The internal energy of a system decreases when work is done on the system and heat is flowing into the system.
C) The system does work on the surroundings when an ideal gas expands against a constant external pressure.
D) All statements are true.
E) All statements are false.
Answers
This is a state function, and the internal energy is the sum of the kinetic and potential energies of all the particles in the system.
How can one define the internal energy of a system?A system's internal energy is the sum of all the energies that are present in it, including the mechanical, chemical, potential, kinetic, and so forth. The unit of measurement for internal energy is the letter J, which stands for joules (J).The total internal energy of a system with particular limits is made up of the kinetic energy brought about by the motion of molecules, the potential energy brought about by their vibrational motion, and the electric energy of the atoms contained within those molecules.The internal energy is an initial- and boundary-dependent state function.An abundance of internal energy exists.ΔU = q + W serves as the fundamental formula for the internal energy for a closed system.Heat, internal energy change, and mechanical work are all represented by the unit ΔU.To Learn more About internal energy refer To:
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A wahing machine drum ha an internal diameter of 47. 0 cm. It pin at 16. 0 revolution per econd. A it pin, a ock i preed againt the ide of the drum. The ock i tationary with repect to the drum. The peed of the ock i
m −1. After 3. 25 revolution, the magnitude of the average velocity of the ock i
m −1
Answers
a = 23.6 The speed b = 1.64 magnitude of the average velocity
16R/s is the frequency, and 0.47 m0.47m is the diameter. Hence:
16R/s=f= 1/T
and
d = 0.47m = 2r , r=d/2= 0.235
So we can solve for the period (T)
16Rs-¹= f = 1/T
1/16 = T
Then, we have to remember that, in a uniform circular motion, the centripetal acceleration is given by
a = v²/r = 4π²r/T²
Now we have to substitute.
a = 4π²(0.235)/(1/16)²
a=2375.02ms-²
Then, we can use the equation
a = v²/r to solve v
2375.02 = v²/r
2375.02 = v²/0.235
(0.235) (2375.02) = v²
√(0.235)(2375.02) = v
23.6 = v
(B) 3.25 revolutions means that the displacement will be 0.25 or 1/4 of the circumference.
Hence, the displacement becomes the hypotenuse in a right triangle is where we can use the Pythagorean theorem.
a=b=r
a=b=0.235
a²+b²=c²
(0.235)² + (0.235)² = c²
C = 0.47/√2
The total time for 3.25 revolutions has to be equal to
3.25T = (3.25) (1/16)
So, since the average velocity is
Displacement/Time we can input the values we have and solve for the result.
Displacement/time = Va
0.47√2 / (3.25) (1/16)
1.64ms-¹ = Va
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Which statements describe how self-reflection can benefit students? Check all that apply. It allows students to better understand what they are learning. It ensures that students understand what they are learning. It helps students perform better on tests and homework assignments. It helps students recognize when they need help in class. It helps students save time when studying for tests.
Answers
Answer:
a c d
Explanation:
yeet
Answer:
a c d
Explanation:
a planet of mass 4 x 10^14 kg is orbiting a parent star 548 km away. if the star is 83 times the mass of the planet, what speed must the planet have to keep a perfectly circular orbit around the star?
Answers
To find the speed of the planet in a perfectly circular orbit around the star, we can use the equation v = sqrt(Gm2 / r). Plugging in the given values, we get v = 1843.3 m/s. Therefore, the planet must have a speed of approximately 1843.3 m/s.
AP Physics I, shouldn't be too hard.
Answers
Answer:
The correct option is;
D. The kinetic energy decreases by 3·m₀·v₀²
Explanation:
The given parameters are;
The mass of object X = m₀
The initial velocity of object X = v₀
The mass of object Y = 2·m₀
The initial velocity of object Y = -2·v₀
By conservation of linear momentum, we have;
The total initial momentum = The total final momentum
Therefore, we have;
The total initial momentum = m₀·v₀ - 2·m₀·2·v₀ = The total final momentum
∴ The total final momentum = -3·m₀·v₀
The total mass of the two object after sticking together = 2·m₀ + m₀ = 3·m₀
Therefore, the velocity of the two objects after collision = (The total final momentum)/(Total mass) = -3·m₀·v₀/(3·m₀) = -v₀
The kinetic energy = 1/2 × Mass × (Velocity)²
Therefore, the kinetic energy after collision = 1/2 × (3·m₀) × v₀² = 3·m₀·v₀²/2
The kinetic energy before collision = 1/2 × m₀ × v₀² + 1/2 × (2·m₀) × (2·v₀)² = (1/2 + 4) × (m₀·v₀²)
∴ The kinetic energy before collision = 9·(m₀·v₀²)/2
The change in kinetic energy = The kinetic energy after collision - The kinetic energy before collision = 3·m₀·v₀²/2 - 9·(m₀·v₀²)/2 = -3·m₀·v₀²
Therefore, the kinetic energy decreases by 3·m₀·v₀².
Based on the article "Will the real atomic model please stand up?,” describe what Dalton’s theory states about a molecule of water.
Answers
Answer:
Dalton’s theory about compounds tells us that all water molecules have different kinds of atoms, two hydrogen atoms for every one oxygen atom.
Explanation:
Answer:
Sample Response: Dalton’s theory about compounds tells us that all water molecules have different kinds of atoms, two hydrogen atoms for every one oxygen atom.
Explanation:
its literally the sample response
If the mass of the Earth is doubled, how will the moon’s orbit be affected?
Answers
What Would Happen to the Orbit of the Moon if it Were Twice as Massive? ... The orbit would not change.
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Un prisma rectangular con un volumen de 80 m^3 se sumerge hasta la mitad en agua, calcular la fuerza de empuje que recibe.(rho_(del agua)=1000 kg/m^3)
Answers
Answer:
400 kN
Explanation:
El principio de Arquímedes establece que, cuando un cuerpo está total o parcialmente sumergido en un fluido, experimenta un empuje hacia arriba que es igual al peso del fluido desplazado.
Dado que;
Volumen del bloque = 80m ^ 3
Densidad del agua = 1000 kg / m ^ 3
Empuje hacia arriba = 1/2 * 80 * 1000 * 10
Empuje hacia arriba = 400 kN
Which particle (proton, neutron, or electron) has a negative charge?
Answers
Answer:
electrons
Explanation:
it just does
If the scaled-up man now stands on one leg, what fraction of the tensile strength is the stress on the femur?.
Answers
The new cross sectional area and tensile stress is mathematically given as
A=4.8*10^{-4}m^2
X=14:100
Cross sectional area and stress on the femurQuestion Parameters:
To see why this must be so, recall, that the stress on the femur for a man standing on one leg is 1.4%
we scale this man up by a factor of 10 in all dimensions
that a 70 kg person has a femur with a cross-section area
a)
Generally the New cross sectional area is mathematically given as
100A=100*4.8*10^{-4}
A=4.8*10^{-4}m^2
b)
From the initial statement we see that the fraction of the tensile strength is the stress on the femur and will be
\(X=\frac{14}{100}\)
X=14$
X=14:100
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Complete Question
Larger animals have sturdier bones than smaller animals. A mouse's skeleton is only a few percent of its body weight, compared to 16% for an elephant. To see why this must be so, recall, that the stress on the femur for a man standing on one leg is 1.4% of the bone's tensile strength. Suppose we scale this man up by a factor of 10 in all dimensions, keeping the same body proportions. (Assume that a 70 kg person has a femur with a cross-section area (of the cortical bone) of 4.8 x 10-4m², a typical value.)
Part A
Both the inside and outside diameter of the femur, the region of cortical bone, will increase by a factor of 10. What will be the new cross-section area? Express your answer using two significant figures.
Part B
If the scaled-up man now stands on one leg, what fraction of the tensile strength is the stress on the femur?
A force F~ = Fx ˆı + Fy ˆ acts on a particle that
undergoes a displacement of ~s = sx ˆı + sy ˆ
where Fx = 10 N, Fy = −1 N, sx = 4 m, and
sy = 1 m.
Find the work done by the force on the
particle.
Answer in units of J.
Find the angle between F~ and ~s.
Answer in units of ◦
.
Answers
The work done by the force on the particle is 39J and the angle between F and s is 19.7 degree.
What is Force ?An item with mass is pulled or pushed which alters its velocity. A material that has the ability to change a body's rest or motion state is referred to as an external force. It possesses a magnitude and a direction.
Briefing:Force F = (Fx, Fy)
Displacement S = (Sx,Sy)
Fx=10N
Fy=-1N
Sx=4m
Sy=1m
F=(10,-1)N and S=(4,1)m
Work done is calculated by taking dot product of force and displacement vector:
W=F·S
W=10×4 + (-1)×1
W=40+(-1)=39J
W = 39 J
To find angle between F and s:
\(|F|=\sqrt{10^2+(-1)^2}\)
|F| = √101
|S| = √(4² + 1²)
|S| = √17
W = |F| |S| cosθ
39 = √101 √17 cosθ
θ = 19.7.
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A tortoise can move with a speed of 10.0cm/s, while a rabbit can move 10 times faster. In a race, both of them started at the same time, but the rabbit stopped to rest for three minutes. The tortoise wins by a distance of 10cm from the rabbit. How long is the race?
A. 125.2s
B. 159.8s
C. 199.9s
D. 205.7s
Answers
Answer:
C. 199.9 s
Explanation:
3 minutes = 3×60 = 180 seconds.
the turtle moves in that time 180×10 = 1800 cm.
in other words the rabbit gave it that much head-start (it does not matter if that was at the begin of in the middle of the race).
the rabbit moves with 10×10cm/s = 100cm/s.
the rabbit needs therefore 1800/100 = 18 seconds for the
1800 cm.
at that time the turtle has added another 18×10 = 180 cm.
for which the rabbit needs 180/100 = 1.8 seconds.
during that time the turtle has added 1.8×10 = 18 cm.
and so on.
in formal mathematics this looks like this :
1800 + 10x = 100x
after x seconds of the rabbit running both will have run the same distance, and it is a tie.
1800 = 90x
x = 20 seconds
so, at that point, the rabbit was actively running for 20 seconds and raced 20×100 = 2000 cm
and the turtle was actively running for 180 + 20 = 200 seconds, and also covered 200×10 = 2000 cm.
but our question tells us that the turtle won by 10 cm.
so, the race was over a little bit before these 200 seconds (for a tie).
this means, the rabbit could not run the last 10 cm for the tie (because the race was over and the turtle had won).
the rabbit would have needed 10/100 seconds for these 10 cm.
as speed = distance/time
we need to divide distance by speed
distance/1 / distance/time
to get time.
so,
10cm/1 / 100cm/s = 10s/100 = 1/10 s
so, we need to deduct this 1/10 s from the 200 seconds of the turtle (and also from the 20 seconds for the rabbit).
the race lasted of course the whole time the turtle was running (while the rabbit was resting, officially still participating in the race with speed 0 for 3 minutes).
and so, the race was 199.9 s long.
According to the octet rule, the first energy level is stable with ________ electrons and the outermost energy level is stable with__________electrons.
Answers
According to the octet rule, the first energy level, also known as the K shell, is stable with a maximum of 2 electrons. This is because the K shell only has one subshell, which can hold a maximum of 2 electrons.
The outermost energy level, also known as the valence shell, is stable with a maximum of 8 electrons. This is because the valence shell has multiple subshells, including s, p, d, and f subshells, which can hold a total of 8 electrons. The octet rule states that atoms tend to gain, lose, or share electrons in order to achieve a full outermost energy level with 8 electrons, which results in greater stability.
The octet rule states that atoms are most stable when they have a full set of electrons in their outermost energy level, which typically means having 8 electrons (except for the first energy level). This is why atoms often form bonds with other atoms to achieve this stable configuration.
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Two horses have hooves of about the same area. Horse A has a much bigger mass than horse B. How would the pressure that they produce on the ground be different?
Answers
The pressure will be different because of the difference in the masses of horse A and horse B.
Horse A will have greater pressure due to much bigger mass.
Who do horses have hooves?In order for a horse to survive and operate, its hooves are necessary. Throughout a horse's lifetime, its hooves expand. Each foot of a horse has a single, solid hoof. The size of this might vary according on the breed, size, and running and jumping prowess of the horse.
Scholars have long disagreed on how animals—whose predecessors were dog-sized creatures with three or four toes—came to have only one hoof. According to a recent research, when horses grew bigger, one big toe was shown to be more resistant to bone stress than several smaller toes.
Thus, horse A will have greater pressure due to much bigger mass.
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If a 0.2-ml blood sample with a paco2 of 40 mm hg diffuses across a membrane into the e2 electrode containing 0.3 ml of solution, the final paco2 in the blood sample will be:_________
Answers
If a 0.2-ml blood sample with a paco2 of 40 mm hg diffuses across a membrane into the e2 electrode containing 0.3 ml of solution, the final paco2 in the blood sample will be less than 16 mm Hg.
PaCO2(initial)×Vinitial=PaCO2(final)×Vfinal
(40 mm Hg)(0.2 mL)=PaCO2(final)×(0.5 mL)
PaCO2(final)=16 mm Hg
In this example, CO2 diffuses from blood into a reaction solution, where some of the CO2 is removed as it is converted to HCO3−.
See the image given below:
A tired squirrel (mass of 1 kg) does push-ups by applying a force to elevate its center-of-mass by 5 cm. Estimate the number of push-ups that a tired squirrel must do in order to do a approximately 5.0 Joules of work.
Work, Energy, and Power: Calculating the Amount of Work Done by Forces
Answers
The number of push-ups in center-of-mass that a tired squirrel must do in order to do a approximately 5.0 Joules of work is 10.2 push-ups.
What is center-of-mass?Center of mass (COM) is a concept used in physics to describe the average position of a group of particles that make up a system. This point is of significant importance in mechanics, since all the external forces that act on the system, as well as its internal forces, can be calculated using the COM.
The amount of work done by a force is equal to the magnitude of the force multiplied by the distance the object moves in the direction of the force.
Therefore, the amount of work done by the tired squirrel is:
Work = Force × Distance
Work = (1 kg) × (9.8 m/s2) × (0.05 m) = 0.49 Joules
To do 5.0 Joules of work, the tired squirrel must do (5.0 Joules) / (0.49 Joules) = 10.2 push-ups.
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The flow of air from an ocean or lake to the land is called a ___________________________.
Answers
Maybe sea or onshore breeze
It develops due to the difference of air pressure greater by the different temperature of the water and land
How do you find out the missing masses in a balloon
Answers
Answer:
How do you find out the missing masses in a balloon?
Well, actually you can't find the missing masses in a balloon. Why?
Because the mass of the mass of balloon, it can't see the mass of it, it only see if it the balloon is deflated or inflated.
Explanation:
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a diverging lens has a focal length of -14 cm. An object is placed 38 cm from the lens's surface. determine the image distance
Answers
Using lens makers formula
\(\\ \tt\longmapsto \dfrac{1}{v}+\dfrac{1}{u}=\dfrac{1}{f}\)
\(\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{1}{f}-\dfrac{1}{u}\)
\(\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{1}{-14}-\dfrac{1}{38}\)
\(\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{-19-7}{266}\)
\(\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{-26}{266}\)
\(\\ \tt\longmapsto v=\dfrac{266}{-26}\)
\(\\ \tt\longmapsto v=\dfrac{133}{-13}\)
\(\\ \tt\longmapsto v=-10.2cm\)
interpreting the right-hand rule for magnetic fields which is the correct representation of the right-hand rule for a current flowing to the right?
Answers
The correct representation of the right-hand rule for a current flowing to the right is as follows:
Hold your right hand out with your thumb pointing in the direction of the current flow.
Curl your fingers towards the direction of the magnetic field.
Your fingers will indicate the direction of the magnetic field lines around the current-carrying wire.
This right-hand rule is also known as the "right-hand grip rule" or the "right-hand screw rule". It is used to determine the direction of the magnetic field created by a current-carrying wire.
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A plastic ball of mass 400 kg moves with a velocity of 30 m/s. It collides with a second plastic ball of mass 200 kg moving in the same direction at 10 m/s. After the collision, the 200 kg ball has a velocity of 26 m/s, in the same direction. What is the new velocity of the 400 kg ball? Show your equation and work.
Answers
The total momentum during the collison is conserved. Using this concept, the final velocity of the 400 kg ball is 22m/s.
What is momentum ?Momentum of an object is the product of its mass and velocity. During collision between two bodies the total initial momentum is equal to the total final momentum.
Momentum of ball of 400 kg with 30 m/s = 400 × 30 = 12000 kg m/s.
momentum of ball of 200 kg with 10 m/s velocity = 200 × 10 = 2000 kg m/s.
total initial momentum = 2000 + 12000 kg m/s = 14000 kg m/s.
Now, final momentum of 200 kg ball with 26 m/s = 200 × 26 = 5200 kg m/s.
total final momentum = total initial momentum = 14000 kg m/s.
thus 5200 kg m/s + (400 kg × v m/s) = 14000 kg m/s
v = (14000 - 5200 kg m/s )/400 kg = 22 m/s.
Therefore, the final velocity of 400 kg ball is 22 m/s.
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name and describe the process that fuels the sun
Answers
Answer:
The Sun derives all its energy from a fusion cycle. In that process, tiny hydrogen molecules combine into a continuous proton-proton chain to create larger helium nuclei. The above figure illustrates the fusion of hydrogen into helium.
Explanation:
Hope this helps.
Answer:
nuclear fusion
Explanation:
In this process, small hydrogen molecules fuse together to form bigger helium nuclei in a continuous proton-proton chain.
this problem checks your understanding of the term in the equation for the electric field due to a point charge, . consider a charged particle at a point s whose coordinates are (10 m, 10 m, 7 m). we would like to find the electric field vector at a point p whose coordinates are (4 m, 5 m, 5 m). the term is the distance between point s and point p. what is its value, in meters?
Answers
The distance from point s to point p is 0.8 meters by the vector coordinates s and p.
What precisely do vectors consist of?A vector is an entity that has both dimension and direction. A directed boundary can be used to represent a vector graphically, with the length of the segment corresponding to the vector's magnitude and the direction being indicated by an arrow. From its tail to its head, the vector points in a direction. The mathematical or geometrical representation of a quantity is another use of the term. Vectors can be found in nature as force, momentum, electromagnetic fields, weight, and velocity.
We are given the point s is (10 m, 10 m, 7 m) and the point p is (4 m, 5 m, 5 m).
Now the vector coordinates are: (10-4)i+(10-5)j+(7-5)k=6i+5j+2k.
The distance in the vector form is: 5/(6²+5²+2²)=5/65=0.8
So the distance is 0.8 m.
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Which option is an example of chemical energy being transformed into
kinetic energy?
A. A ball rolling down a hill
B. A battery powering a flashlight
C. A plant storing energy from the Sun in its leaves
O D. A rocket engine igniting its fuel during liftoff
SUBMIT
Answers
Rocket engine igniting is chemical energy when he in turn makes it launch and move which is kinetic energy
Answer: D
Rocket engine igniting is chemical energy when he in turn makes it launch and move which is kinetic energy
List some of the most common injuries that can occur from sports.Explain the importance of following the rules while participating in sports.
Answers
Answer:
Answers will vary. Sample response : The most common injuries from sports include ankle sprains, concussion, bone fractures, knee tears, hamstring strains, and groin strain.
Explanation:
Sample response, EDGE 2021
what is the medium for an ocean wave? Provide evidence that the medium is not transferred when a water wave moves on a lake
Answers
The medium for an ocean wave is the ocean water which involves movement on the water body.
What is a Medium?This is defined as a substance or material that carries the wave. In the case of ocean waves, the medium is referred to the ocean water.
The medium is not transferred when a water wave moves on a lake as energy is transported but the water molecules aren't which is why lakes have water present in them.
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What is the net force in this picture?
hellllllllllllllllllloppppppppppppppppppp mmmmmmmmmmmmeeeeeee
Answers
Answer:
I'M SORRY I CAN'T SEE THE PICTURE BUT IT WILL MOST LIKELY BE THE DIFFERENCE BETWEEN THE NUMBERS
Explanation:
for instance if there was someone pushing a desk with a net force of 9 towards the right, the net force would come to a total of 9 since there is no one on the other side pushing the desk. Meaning the desk would go right. I'm sorry if this isn't what you needed D:
A motor does a total of 480 joules of work in 5.0 seconds to lift a 12-kilogram block to the top of a rampThe average power developed by the motor is
Answers
Answer:
there it is fella
we neglect the mass data
is it possible for an atom to make more than one bond? explain and give an example
Answers
Answer:
First, an atom may complete its octet by sharing more than one pair of electrons with a bonded neighbour. Two shared pairs of electrons, represented by a double dash (=), form a double bond. Double bonds are found in numerous compounds.
Carbon dioxide is another example of a compound containing a multiple bond. Carbon can react with oxygen to form carbon dioxide. Carbon has four valence electrons, and oxygen has six. Carbon can share two of its valence electrons with each of the two oxygen atoms, forming two double bonds.
Explanation:
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