a potato falling vertically downward is struck by a dart that is traveling vertically upward, as shown above. the dart and potato then collide, stick together, and continue moving after the collision. question consider the dart-potato system. which of the following graphs best represents the speed v of the center-of-mass of the dart-potato system, as a function of time t, before, during, and after the collision?

Answers

Answer 1

The graph representing a line with constant slope increasing represents the relation between speed and time of the dart-potato system.

Increasing slope represents that the slope is positive and as the quantity on x- axis increases, the quantity on y-axis also increases.

Momentum is said to be conserved before and after collision in a two-object system. Here, the two objects are said to be dart and potato. The potato and dart after collision are said to move by sticking together after the collision.

The potato-dart system is said to be moving with increasing velocity after the collision. The speed of the potato-dart system is given as v.

The question is incomplete. The speed v of the centre of mass of the dart-potato system, as a function of time t, before, during, and after the collision is represented by the graph attached below.

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A Potato Falling Vertically Downward Is Struck By A Dart That Is Traveling Vertically Upward, As Shown

Related Questions

how slow would a 60,000 kg freight car have to roll to have the same momentum as an 80 kg person running 6.5 m/s

Answers

(8 and 2/3) millimeters per second.

That's about 0.02 mile per hour.

Bill drives west at 20\, \dfrac{\text m}{\text s}20 s m ​ 20, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction, then slows to a stop at the red light. A graph of his velocity over time is shown below, where eastward is the positive velocity direction.

Answers

Answer:

This

Explanation:

Khan academy answer

PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST The actual subject is Science but they dont have that as a option in pick a subject

Answers

Answer:

I believe it is D. Based on the point and it being Position vs. time I believe D makes the most sense. Sorry if I am wrong!

Explanation:

Answer:

25/30 = 0.83

Explanation:

I took this class

state and explain the disadvantages of anomalous expansion of water​

Answers

Answer:

я не знаю старайся изо всех сил

Explanation:

[tex]\huge{\mathbb{\tt { QUESTION↓}}}[/tex]

[tex]\color{green}{\tt State \: and \: explain \: the \: disadvantages}[/tex]

[tex]\color{green}{\tt { of \: anomalous \: expansion \: of \: water}}[/tex]

[tex]\huge{\mathbb{\tt {ANSWER↓}}}[/tex]

[tex]{\boxed{\boxed{\tt { DISADVANTAGES \: of \: anomolous \: expansion \: of \: water }}}}[/tex]

Since the maximum density can be found for a positive temperature, water's own weight will prevent it from freezing from the bottom up. However, the anomalous expansion of water has some negative consequences. ... As the water freezes it expands and can rip pipes open.

[tex]{\boxed{\boxed{\tt { What \: is \: the \: state \: of \: anomalous \: expansion \: of \: water? }}}}[/tex]

The anomalous expansion of water is an abnormal property of water whereby it expands instead of contracting when the temperature goes from 4o C to 0o C, and it becomes less dense. The density is maximum at 4 degree centigrade and decreases below that temperature as shown in graph

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#JustEnjoyTheSummer

→XxKim02xX

HELP pleaseee which nucleus completes the following equation?

Answers

Answer:

its D

Explanation:

i just got it correct on a. p. e. x. :)

How does radiation occurs on earth or in space?

Answers

Answer:

Space radiation is made up of three kinds of radiation: particles trapped in the Earth's magnetic field; particles shot into space during solar flares (solar particle events); and galactic cosmic rays, which are high-energy protons and heavy ions from outside our solar system.

Explanation:

The three main stages to the memory process are encoding, storage, and retrieval.
A.True B.False

Answers

Answer:

A

Explanation:

Answer:

a- true

Explanation:

i did the test and its correct

WILL MAKE BRAINLIEST! How does Hooke’s law help us understand the force and energy in elastic materials?

Answers

Answer:

How does Hooke’s law help us understand the force and energy in elastic materials?:

When the elastic materials are stretched, the atoms and molecules deform until stress is been applied and when the stress is removed they return to their initial state

Explanation:

An aluminum rod is 300m and at 25 degree Celsius. Calculate the change in rod
length at 45 degree Celsius

Answers

Answer:

Explanation:

540

A girl kicks a blue ball with a velocity of 20.0 m/s at 65.0o. How long is it in the air?


1.85s

1.92s

13.6s

3.69s

Answers

Explanation:

t = usin©/g

Where t is the time to reach the maximum height

Time spent in air is T = 2t

Hence, T = 2usin©/g

T = 2 x 20 x sin 65°/ 9.8

T = 3.69s


Which of the following scenarios would result in an increase of kinetic
energy?*

A) An object at rest at a height of 10 meters
B) A car accelerating from 10 m/s to 20 m/s
C) A car coming to a stop

Answers

B) car accelerating from 10 to 20

Answer:

B) A car accelerating from 10 m/s to 20 m/s

Explanation:

I explained this yesterday.

What is the equivalent of 0° C in Kelvin?
Help will give brainiest

Answers

Answer:

273.15 dat is the answer im pretty sure

Three people push a piano on wheels with forces of 130 N to the right, 150 N to the left, and 165 N to the right. What is the strength and direction of the net force on the piano?

Answers

Answer:

45 N to the right possibly?

A car hits a wall with a force of 80 N and
has a mass of 4.5 kg. What was the
acceleration of the car?

Answers

Formula for acceleration: A=Force/Mass
A=F/M
A=80N/4.5kg
A=17.7 m/s^2

Unit for A is meters per second (m/s^2)
Hope this helps :)

How far is it between the cafeteria and the swimming pool
A.
length
B.
volume
C.
distance
D.
displacement

Answers

C distance

Explanation:

Which of the following terms describes the area where the Himalaya Mountains formed?

A.Divergent Boundary
B.Convergent Boundary
C. Subductive Zone
D. Transform Boundary

Answers

Answer:

B

Explanation:

The Himalayan Mountains formed at a convergence plate boundary between the Eurasian plate and the Indian plate.

Please help Draw where the rays will go and label the type of mirror.

Answers

Answer:

Explanation:

Please check the picture and consider straight lines

A roller coaster has a mass of 250 kg,
and is 50 meters above the ground, what
is the potential energy?

Answers

Potential Energy = mass x gravity x height
PE = mgh
PE = 250kg x 9.8 m/s^2 x 50m
PE = 118,750 joules = 118kJ

A roller coaster has a mass of 250 kg, and it is 50 meters above the ground, then the potential energy will be equal to 122.5 KJ.

What is Potential energy?

Potential energy is a type of energy stored that depends on the interaction between various substances. A spring's energy rises when it is crushed or expanded. A steel ball has more energy stored if it is lifted just above the floor as contrasted to dropping to the ground. As raised, it can do greater labor.

Instead of being a property of specific entities or atoms, potential energy is a property of systems. For instance, a system made up of Earth and the raised ball has far more stored energy as they move apart.

In system components, where the configurations, or spatial arrangements, dictate the magnitude of the forces that apply against one another, potential energy arises.

From the data given in the question,

Mass, m = 250 kg

Height, h = 50 meters and,

g = 9.8 m/s²

[tex]Potential energy(PE)=mgh[/tex]

PE = 250 × 50 × 9.8

PE = 122500 J or,

PE = 122.5 KJ.

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Calculate the momentum elephant of a 2020 kg elephant charging a hunter at a speed of 7.49 m/s .

Answers

Answer:

15129.8 Kg•m/s

Explanation:

From the question given above, the following data were obtained:

Mass = 2020 kg

Velocity = 7.49 m/s

Momentum =?

Momentum is simply defined as the product of mass and velocity. Mathematically, it is expressed as:

Momentum = mass × velocity

With the above formula, we can obtain the momentum of the Elephant as follow:

Mass = 2020 kg

Velocity = 7.49 m/s

Momentum =?

Momentum = mass × velocity

Momentum = 2020 × 7.49

Momentum = 15129.8 Kg•m/s

Thus, the momentum of the Elephant is 15129.8 Kg•m/s

Compare and contrast hydrogen fuel cell vehicles with vehicles that have intemal combustion engines.​

Answers

In a fuel cell vehicle, the hydrogen fuel is combined with oxygen. While the combustion in a hydrogen- or gasoline-powered engine is converted into mechanical energy, in a fuel cell vehicle, the chemical energy from the hydrogen and oxygen is converted into electrical energy.

A hydrogen fuel cell vehicle is different from internal combustion engine as in fuel cell, hydrogen combines with oxygen whereas in internal combustion engines, gasoline is used.

What are hydrogen fuel cell vehicles and internal combustion engines?

In a internal combustion engine or fuel cell vehicle, the hydrogen fuel is combined with oxygen atom. While the combustion in a hydrogen- fuel or in a gasoline-powered engine is converted into mechanical energy, however in the hydrogen fuel cell vehicle, the chemical energy from the hydrogen and oxygen is converted into electrical energy.

Both hydrogen internal combustion engines and the hydrogen fuel cells can power vehicles using hydrogen, a zero-carbon fuel. Hydrogen engines burn hydrogen gas in an internal combustion engine, in the same way as the gasoline is used in a power engine. Examples of hydrogen internal combustion engines include gasoline engines, diesel engines, gas-turbine engines, and rocket-propulsion systems.

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I have an unknown volume of gas at a pressure of 0.500 atm and a temperature of 325 K. If I raise the pressure to 1.20 atm, decrease the temperature to 320. K, and measure the final volume to be 48.0 liters, what was the initial volume of the gas?

Answers

Answer:

117

Explanation:

the formula is P1V1 over T1 is equals to P2V2 over T2

A sphere is released into the atmosphere where air resistance is present. As it falls it loses 7J of potential energy. How much kinetic energy did it gain?

Answers

Answer:

7 J

Explanation:

Given that,

A sphere is released into the atmosphere where air resistance is present.

The lose in energy is equal to 7 J

We need to find the gain in its kinetic energy.

We know that, as per the law of conservation of energy,

Loss in potential energy = gain in kinetic energy

Gain in kinetic energy = 7 J

Hence, the gain in kinetic energy is 7 J.

The tendency of an object to resist a change in motion is called ___________________
a.
displacement
c.
momentum
b.
inertia
d.
acceleration

Answers

the tendency of an object to resist a change in motion is called inertia

Which of the waves has the smallest amplitude?
A. The blue wave
B. The orange wave
C. The green wave
D. The red wave

Answers

Answer:

I think its the Blue wave, im not sure so dont take my word for it.

Explanation:

Answer: it’s the green wave

Explanation: trust me bro

PLEASE HELP!!!!!!!!!!!!!!!!Match the label with the reason it might be important to the consumers.
1. country of origin
Kelli only buys vegetables grown
without pesticides.
Angie only buys foods made with
2. Organic Certification
sea salt to cut sodium intake.
3. dietary guideline
Nikki prefers to buy local products
to lessen her carbon footprint.

Answers

Answer:

1 is Nikki

2 is Kelli

3 is Angie

Explanation:

Hope this helps!

A proton travels through uniform magnetic and electric fields. The magnetic field is in the negative x direction and has a magnitude of 2.48 mT. At one instant the velocity of the proton is in the positive y direction and has a magnitude of 1840 m/s. At that instant, what is the magnitude of the net force acting on the proton if the electric field is (a) in the positive z direction and has a magnitude of 5.19 V/m, (b) in the negative z direction and has a magnitude of 5.19 V/m, and (c) in the positive x direction and has a magnitude of 5.19 V/m

Answers

Answer:

a)   F = 15.6 10⁻¹⁹  k^   N,  b)  F = -1  10⁻¹⁹  k^   N,

c)  F = (8.3 i^ + 73 k^) 10⁻¹⁹ N

Explanation:

In this exercise we calculate the magnetic and electric force separately.

Let's start by calculating the magnetic force

       F_m = q v x B

where bold letters indicate vectors, the modulus of this expression is

       F_m = q v B

the direction is given by the right hand rule, where the thumb points in the direction of velocity, the fingers are extended in the direction of the magnetic field and the palm is in the directional ne force if the charge is positive

let's calculate the magnitude

      F_m = 1.6 10⁻¹⁹  1840  2.48 10⁻³

      F_m = 7.3 10⁻¹⁹ N

we calculate the direction, the thumb is in the direction of + y,

fingers extended in the direction of -ax

the palm remains + z

therefore the magnetic force is in the direction of the positive side of the z axis

The electric force is

        F_e = q E

give several possibilities for the electric field

a) electric field E = 5.19 V / m in the direction of + z

we calculate

        F_e = 1.6 10⁻¹⁹ 5.19

        F_e = 8.3 10⁻¹⁹ N

the total force is

       F = F_m + F_e

       F = (8.3 k ^ + 7.3 k ^) 10⁻¹⁹

       F = 15.6 10⁻¹⁹  k^   N

b) in the -z direction

       F_e = -8.3 10⁻¹⁹ k^   N

       F = Fm + Fe

       F = (-8.3 k ^ + 7.3 k ^) 10⁻¹⁹

       F = -1  10⁻¹⁹  k^   N

c) in the + x direction

       F_e = 8.3 10⁻¹⁹  i^   N

the total force is

       F = (8.3 i^ + 73 k^) 10⁻¹⁹ N

What is the transfer of energy from a wave to the medium through which travels

Answers

Answer:

'Wave' is a common term for a number of different ways in which energy is transferred: In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.

Which describes the motion in a convection current? horizontal motion only vertical motion only linear motion circular motion

Answers

Answer:

circular motion

Explanation:

Circular motion can be regarded as

movement of particular object along the circumference in a circle. It is

rotation of particular object along a circular path. Circular motion could be

uniform, along with constant angular rate of rotation as well as constant speed. It could also be non-uniform along with changing rate of rotation. The acceleration that is been experienced when one is in uniform circular motion is called"Centripetal acceleration"

Convection currents is type of current that takes place after a reservoir of fluid has been heated at the bottom, then cool at the top.the fluid expand as a result of Heat , then density decreases, the plates on top of them is been carried as a result of circular motion of the convection

A convention current is a circular movement which is set up due to temperature difference between two layers of a fluid.

What is a convection current?

A convention current is a movement which is set up due to temperature difference between two fluids.

Convection currents are set up in liquids and gases.

Hotter and less dense fluids move upwards while colder and denser fluids move downwards.

Therefore, convection currents involve circular motion.

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A 12.0 volt battery is connected in a series to 4 identical 5.00 ohm resistors connected in parallel to each other. What is the current through the battery?

Answers

Answer:

9.6 Amperes

Explanation:

since the resistors are connected in parallel connection the equivalent resistance is

1/R = 1 /5 + 1/5 + 1/5 + 1/5

solving for R we get 5/4 ohms

then from V=IR

I = V/R

I=12/(5/4)

hence I= 9.6 Amperes

A 12.0-volt battery is connected in a series, then the current through the battery is 9.6 A.

What are Resistors?

Electrical resistance is implemented as a circuit element by resistors, which are passive two-terminal electrical components. Resistors are devices that are used in electronic circuits for a variety of purposes, including lowering current flow, adjusting signal levels, dividing voltages, biasing active components, and terminating transmission lines.

As part of motor controllers, power distribution systems, or as test loads for generators, high-power resistors that can dissipate many watts of electrical energy as heat may be used.

According to the question,

1/R = 1 /5 + 1/5 + 1/5 + 1/5

R = 5/4 ohms

By ohm's law,

V=IR

I = V/R

I=12/(5/4)

I= 9.6 Amperes

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This graph shows the energy of a reaction over time. Which statement is
true?


A. H represents the energy of the products.

B. G represents the activation energy.

C. G represents the energy of the products.

D. F represents the activation energy

Answers

Answer: D.

Explanation: Just took the quiz.

Answer:

D. F represents the activation energy

Explanation:

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