Momentum/Impulse Test- Physics
Name
Momentum: p = mv Change in momentum: Ap = m(vrv.) Impulse: J = Fat Fat = m(vrv)
Elastic collsions: m,Vu+m;V;= m Va+m_V21
Inelastic collisions: m, Vy+m V2 = (m+m),
1. Which object would have the least momentum? Which object would have the most momentum
A. 10Kg object moving at 40m/s
C. .1Kg object moving at 1000m/s
B. 2kg object moving at 100m/s
D. 800Kg object moving at 1m/s
2. Impulse is defined as
A. the change in momentum
B. force multiplied by the change in time
C. the change in velocity
D. both A and B
E. A, B, and C
3. You stick a firecracker between two empty coke cans, each with mass .01kg, and explode it. What is the
total momentum of the system after the collision?
A. 1000 kgm/s
B. Not enough information to tell
C. Depends on the size of the firecracker
D. The answer is 0. Choose this one; none of the other answer choices are correct!

Answers

Answer 1

Answer:

Thats a lot, good luck!<3

Answer 2
Good luck with that one

Related Questions

A 10 ohm resistor has 2.5 amps running
through it. What is the voltage?

Answers

Answer:

10*2.5=25

Explanation:

The answer is 25 volts

Answer:

25 Volts

Explanation:

2.5 multiplied by 10 is 25.

Every force applied to an object will cause the object to move.

Answers

Answer:

Yes your correct.

Explanation:

True you are right above that

Wave 1

a) How many waves are there in this wave train?
b) Wavelength cm c) Amplitude
cm

Answers

Answer:

see below

Explanation:

a wave means one complete wave which is 1 period

so a) 5 complete waves

wavelength is the shortest distance between any two points in phase

so wavelength = 1 CM

amplitude of a wave is the maximum displacement of a particle from its rest position

so amplitude = 3 CM

hope this helps

PLZ HELP ME I HAVE A TIMER!!!
Plz find the initial value (u)
Thank you soo much!!!

Answers

answer:

u =11

Explanation:

brackets were inserted in the 1st step,to make it simpler as multiplication is done first, before addition.

hope this helps:))

why would you want to know the speed of an object

Answers

Answer:

Because when something is moving  such as a car if your going too fast there could be a crash or collision.

Explanation:

What type of force causes your car to move?

Answers

Answer:

frictional force

Explanation:

what percentage of americans get no exercise in a day

Answers

Answer:

95%

Explanation:

Answer:

0%

Explanation:

im not sure kasi i dont understand the question.....

List three unique examples of situations in your daily life where expansion and contraction occur.

Answers

when you put ice in the freezer, the water expands when in gets cold.
the sidewalks have cracks in them to make room for the expansion and contraction when it heats up and cools down.
as you drive a car, the heat from combustion causes metal to expand. when you turn the car off, the metal cools down and contracts

What equations would you use to find force?

Answers

Answer:

F = m x a

Explanation:

F = force

m = mass of an object

a = acceleration

Which waves have oscillations parallel to their direction of motion

Answers

Answer:

The direction of these oscillations is the difference between longitudinal or transverse waves. In longitudinal waves, the vibrations are parallel to the direction of wave travel. In transverse waves, the vibrations are at right angles to the direction of wave travel.

Explanation:

The waves that contains the oscillations parallel to their direction of motion should be considered as the sound waves from stereo speaker.

What are sound waves?

A sound wave is the wave that shows the disturbance patterns that should be lead by the movement of the energy that should be travelled via the medium like air, water, since it should be propagated away from the sound source.

Therefore, The waves that contains the oscillations parallel to their direction of motion should be considered as the sound waves from stereo speaker.

Learn more about wave here: https://brainly.com/question/18752605

The density of iron is 7.97 g/cm. Express it in Sl unit.​

Answers

Answer:

[tex]d=7970\ kg/m^3[/tex]

Explanation:

Given that,

The density of iron is 7.97 g/cm³.

We need to find the density in SI unit. The SI unit of density is kg/m³.

We know that,

1 kg = 1000 g

1 m = 100 cm

So,

[tex]7.97\ g/cm^3=7.97 \times \dfrac{(\dfrac{1}{1000})\ kg}{(\dfrac{1}{100}^3)\ m^3}\\\\=7970\ kg/m^3[/tex]

So, the density of the iron is [tex]7970\ kg/m^3[/tex].

The photograph shows one of the boats in a science club's toy boat race. All the boats were powered by identical
rubber bands. Judges used stopwatches to time how long each rubber band took to unwind. The table shows some
of the data the judges collected.

Answers

Answer: Boat P

Explanation:

Multiple all of them mass times acceleration and which ever one was the greatest was the answer. Which was Boat P 0.2436

The minimum time taken to unwind the rubberband is by boat P.

The highest amount of force to unwind the rubberband is generated by boat P.

Force, Mass and Acceleration

The table shows all the mass, acceleration and time of each boat. To unwind the rubber band, the required force can be calculated as given below.

Force = Mass [tex]\times[/tex] Acceleration

For boat N, force is [tex]f_n = 0.125\times 1.6 = 0.2 \;\rm N[/tex]

For boat P, force is [tex]f_p = 0.116\times 2.1 = 0.24 \;\rm N[/tex]

For boat Q, force is [tex]f_q = 0.130\times 1.0 = 0.13 \;\rm N[/tex]

For boat R, force is [tex]f_r = 0.118\times 1.8 = 0.21 \;\rm N[/tex]

Hence we can conclude that the highest amount of force to unwind the rubberband is generated by boat P.

To know more about the force, follow the link given below.

https://brainly.com/question/26115859.

write a description of your best friend

Answers

My bestfriend is the best ever person in my life.

Answer:

Best friend is that person which we share our feeling.

9. True or False: Sawmills and gristmills are machines that do not need
access to a water source.*
2 points
Pls help

Answers

Answer:

true can i get brainliest :)

Explanation:

Which three rocky planets have atmospheres

Answers

Venus, Earth, and Mars
Hope that helps
Venus Earth and Mars

The moon is lit by light bouncing off of it. That light reaches Earth as ____. The different shapes that the moon appears to have are called ____. The moon goes through ____ phases as it revolves around the ____ every ____ days. The phase that we see depends on how much of the ____ part of the moon we can see. This depends on the positions of the ____, ____, and ____.

Answers

Answer:

Moonlight; phases; eight; 29 days; sunlit; earth; sun; moon.

Explanation:

A moon generally do not have or possess light but rather it reflects the light from the sun.

The moon is lit by light bouncing off of it. That light reaches Earth as moonlight. The different shapes that the moon appears to have are called phases. The moon goes through eight (8) phases as it revolves around the earth every 29 days. The phase that we see depends on how much of the sunlit part of the moon we can see. This depends on the positions of the earth, sun, and moon.

The eight (8) phases of the moon include the following;

1. Last quarter half moon.

2. Waning crescent moon.

3. New moon.

4. Waxing crescent moon.

5. First quarter half moon.

6. Waxing Gibbous moon.

7. Full moon.

8. Waning Gibbous moon.

the empirical formula of (NaSO)​

Answers

Answer:

NaSO

Explanation:

Since there is no common factor besides 1, the formula is already the empirical formula for this compound.

good luck, i hope this helps :)

Molecular nitrogen (N2) has 14 electrons, so this
structure of N2 is correct and complete.
False
True

Answers

the answer is: false

What is radiant energy emmited by the sun

Answers

Answer:

Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy.

Answer:

the earth because us humans all live there and do many things like excercise jobs cleaning and other things

What is the speed of a wave that has a wavelength of 2 m and a frequency of 1.5 hz? Show your calculations!

Answers

Answer:

3 m\s Ans .....

Explanation:

Solution:

v = (1.5)(2)

v = 3 m\s Ans ........

A 8.0 kg bowling ball moves at 3.0 m/s. Calculate the kinetic energy of the ball?

Answers

Answer:

Explanation:

KE = 1/2mv^2

=1/2(8)(3^2)

=4*9

=36 Joules

Of the following reactions, which is a fusion reaction?
a.
uranium-235 absorbing a neutron and splitting into xenon-140, strontium-94, and two neutrons
b.
hydrochloric acid combining with sodium hydroxide to form a salt and water
c.
carbon-14 decaying into nitrogen-14 and a beta particle
d.
curium-246 combining with carbon-12 to form nobelium-254 and four neutrons

Answers

Answer:

Option D is correct.

Explanation:

It is fusion reaction.because curium combines with carbon to form a big nuclei of nobelium.

[tex]Cm_{246} +C_{12}[/tex] → [tex]No_{254}[/tex]

Hence, it is the fusion reaction.

What is fusion?

When two or more nuclei fuse together to form a heavy nucleus with the energy released, is called fusion.

https://brainly.com/question/16196953

#SPJ2

What is the size of the force acting on a copper wire with a magnetic flux density of 3.6 x 10 2 T acting at
right angles to the wire of length 19 m and current of 0.043 A? Round your answer to 2 significant
figures.

Answers

Answer:

2900 N

Explanation:

We are given;

Magnetic flux density; B = 3.6 × 10² T

Length of wire; L = 19 m

Current; I = 0.043 A

Formula for force in this regards is;

F = BIL

Where;

B is Magnetic flux density

I is current

L is length

Thus;

F = 3.6 × 10² × 0.043 × 19

F = 2941.2

To 2 significant figures gives;

F = 2900 N

All music, _______ in the world, is from only ______ notes.​

Answers

Answer:

All music in the world, is form only two notes and those notes are described below in detailed explanation.

Explanation:

In the chromatic scale, there are basically seven central musical notes, designated A, B, C, D, E, F, and G. They individual express a separate pitch or frequency. For illustration, the "central" A note has a pitch of 450 Hz, and the "common" B note has a pitch of 495 Hz.

Varieties Of Musical Notes You Require To Understand

Semibreve (Whole Note)

Minim (Half Note)

Crotchet (Quarter Note)

All music, listened to in the world, is from only twelve (12) notes.

A music can be defined as the systematic combination of an instrumental sound and human vocals, in order to produce harmonious tunes or sounds.

A note can be defined as a symbol which is used to denote a musical sound with respect to its pitch and duration.

Basically, all the music that are available and listened to in the world are typically produced from only twelve (12) notes.

This ultimately implies that, any musical piece that you may have come across in this world comprises only twelve (12) notes and these include:

1. A2. A#3. B4. C5. C#6. D7. D#8. E9. F10. F#11. G12. G#

Read more: https://brainly.com/question/20245998

Despite their name, standing waves actually do cause the medium to move
TRUE OR FALSE?
30 POINTS

Answers

Answer:

true

Explanation:

6. Dentists use a soft, clay-like material to make a filling for a cavity. The filling stays soft under the
light of the dentist's lamp, but it hardens when the dentist shines an ultraviolet flashlight on it. Why
does light from the ultraviolet flashlight harden the filling when light from the lamp does not?

Answers

Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not.

What is ultravoilet ray?

Ultraviolet Rays in the electromagnetic Spectrum Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.

Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of Vitamin C.

Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not,

Hence light from the ultraviolet flashlight harden the filling when light from the lamp does not.

To learn more about the ultravoilet ray refer to thr link;

https://brainly.com/question/25780677

A team of students uses a Bunsen burner to heat a beaker full of ice and uses a thermometer to measure the temperature of the sample as it heats. Their data indicate that the ice maintains a constant temperature of 0°C. Which of the following could be occurring? Select all the options that apply.

Answers

Answer:

1. The ice molecules are at a temperature of 0°C;

2. The ice molecules are absorbing latent heat which would result in their turning to liquid water. Therefore, melting or fusion is occurring.

Note: The question did not provide any options to choose from.

Explanation:

The process of change of state occurs when heat is added or removed from a substance. For example, solid may change to a liquid when heat is added to it whereas a liquid may change to liquid when heat is removed from it.

During the process of change of state, the temperature of the substance undergoing a change of state does not change throughout the time it is undergoing the change. The temperature will begin to increase or decrease when all the molecules of the substance has undergone a change of state. The heat supplied to or removed from a substance during a change of state is known as latent heat.

When a solid changes to liquid, it is known as fusion and the heat absorbed by the solid substance is known as latent heat heat of fusion. If a liquid changes to gas, it is known as vaporization and the heat absorbed by the liquid is known as latent heat of vaporization.

In the experiment by the students above, since the temperature of the ice remains constant at 0°C when heat is supplied from the Bunsen burner to it, the following processes could be occurring:

the ice is at a temperature of 0°C;the ice molecules are absorbing latent heat which would result in their turning to liquid watermelting or fusion is occurring

Answer: B, C, D

Explanation:

trust me

What happens to the molecules when the solid changes phase?

Answers

they begin to move quickly and can break away from other molecules

Answer:

When solid changes atoms/molecules begin to speed up and move around. Compared to when they are in the solid phase, where they barely move and are slow and are compacted.

HELP I GIVE BRAINLIST

what are the drawbacks of relying on fossil fuels ?

A ) Increased levels of atmospheric carbon dioxide
B ) A reduction of air pollution levels in cities
C ) Unlimited supplies of coal, oil, and natural gas
D ) Fossil fuels always burn perfectly, so there are no drawbacks

Answers

Answer:

A) Increased levels of atmospheric carbon dioxide

Explanation:

All of the other options are positive effects

define input work and output work​

Answers

Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance, hope that helped .

Answer:

Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance, hope that helped

.

Explanation:

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