A group of students gather for some fun during their summer break from school. Kendall and Jacoby have a water balloon fight during one of those “lazy” days of summer.

Marie, Gary, and Lois remember a video about work that their science teacher, Ms. Lewis, showed them before they left for vacation.



Marie says: “If Kendall throws a water balloon at Jacoby, there is no work being done. It’s just boys being boys.”



Gary says: “If Kendall throws a water balloon at Jacoby, there is work being done by Jacoby because he has to run.”



Lois says: “If Kendall throws a water balloon at Jacoby, there is work being done because Kendall had to exert a force that made the water balloon travel a certain distance to hit Jacoby.”



Which one of them is correct and why? Answer in complete sentences! You can type on this document and turn in.



Answers

Answer 1

Answer:

lois is right because throwing the water balloon is exerting a force running is not


Related Questions

Charge q is 1 unit of distance away from the source charge S. Charge p is two times further away. The force exerted
between S and q ls the force exerted between S and p.

Answers

Answer:

The correct answer will be "1/16".

Explanation:

The force or distance between two substances in charge seems to be inversely proportional to the square of the size of the particles.  

The exerted force between "S" and "q" will be:

⇒  [tex]Fsq=\frac{{Q}'}{Q} 1^2[/tex] ...(equation 1)

The exerted force between "S" and "p" will be:

⇒  [tex]Fsp=\frac{{Q}'}{Q} 4^2[/tex] ...(equation 2)

Now,

On the comparison of "equation 1" and "equation 2", we get

⇒  [tex]\frac{1}{16}[/tex]

If the box moves at a constant velocity, what do you know about the forces acting on the object?


A)The forces are balanced.

B)The forces are unbalanced.

C)The forces are in outerspace

D)The box has friction

Answers

The answer is A , the forces are balanced
A, this is the answer hope this helps

When waves travel through water, why do the moving water particles continue to return to their starting position?
OA.
Waves transfer matter, but not energy.
Waves transfer both matter and energy.
OC.
Waves transfer energy, but not matter.
OD.
Waves don't transfer matter or energy.

Answers

Answer:

Waves transfer energy, not matter

Explanation:

All engines operate at less than 100 percent efficiency because they
A. absorb heat
B. conduct heat
C. burn gasoline
D. emit heat

Answers

Answer:

It is B or D, but I may be leaning a little more towards D.

Explanation:

The most correct answer is D

I'M ON A TIMER Ingrid says that a red ball of clay appears red because the clay reflects red wavelengths. Simon says that the clay appears red because it allows red wavelengths to pass through it. Which statement best explains who is correct? Ingrid is correct. The clay appears red because it is opaque. Ingrid is correct. The clay appears red because it is a type of matter. Simon is correct. The clay appears red because it is opaque. Simon is correct. The clay appears red because it is a type of matter.

Answers

Answer:

Ingrid is correct. The clay appears red because it is a type of matter.

Explanation:

Answer: Ingrid is correct. The clay appears red because it is opaque.

Explanation: It is A because it only shows red because it only reflects red. If it let any other color pass through it then it could reflect any color.

Two bumper cars collide and then move away from each other. The forces exerted are:

A. Equal and opposite
B. Opposite
C. Equal

Answers

Answer:

the answer is b

Explanation:

if it was equal they would move away from each other

Two students walk out on the broken bridge together. As they reach the end of the bridge, what would happen to their gravitational potential energy.

A)Decrease

B)increase

C)Remain the same

D)None of the above

Answers

Answer: C

Explanation: I dont realy know what this means. but it will not increase because your not getting closer to earths center of gravity and not decreasing because your not high enough in the atmosphere.

which property of substances help to make a thermometer?
I NEED HELP.

Answers

Answer:

Mercury

Explanation:

Mercury streches when it is hot so that is why it goes up when the temperature is higher

Question 5(Multiple Choice Worth 4 points) (01.04 MC) Which of the following correctly describes the relationship between speed and velocity? Speed is the change in velocity over time; velocity is distance plus direction. Speed is the change in distance over time; velocity is speed plus direction. Speed is distance plus direction; velocity is speed plus time. Speed is the change in acceleration; velocity is distance over time.

Answers

Answer:

Speed is the change in distance over time; velocity is speed plus direction

Explanation:

Speed is defined as the change in distance covered by a body with respect to time while velocity the change in displacement of a body with respect to time. Speed is a scalar quantity since it does not specifies direction while velocity is a vector quantity because it specifies both magnitude and direction.

Speed can only be equal to the velocity if it also specifies direction.

Based on the definition above, it can be concluded that speed is the change in distance over time and velocity is speed plus direction.

Answer:

Speed is the change in distance over time; velocity is speed plus direction.

Explanation:

I did it and got the test right

A large force will cause_______ acceleration than a small force

Answers

Answer:

A large force will produce more acceleration than a small force acting on the same object.

A plane increases its speed from 450 km/hr to 750 km/hr in 0.30 hour. What is its acceleration?

Answers

Answer:

The acceleration is found as:

a = 1000 km/h²

Explanation:

Initial speed of the plane = 450 km/h

Final speed of the plane = 750 km/h

Time taken = 0.3 h

Acceleration can be defined as the change of speed of the object divided by the time taken to bring that change

Acceleration is given as:

[tex]a=\frac{v_f-v_i}{t}[/tex]

where v(f) = 750 km/h , v(i) = 450 km/h , t = 0.3 h

Substitute the values in the equation of acceleration

[tex]a= \frac{750-450}{0.3}\\a=\frac{300}{0.3}\\a=1000 km/h^2[/tex]

This is the found result

A wooden object (conically shaped) has a diameter of 8cm and height of 14cm. It floats in oil with 6cm of its height above oil level. Determine (a)The density of the object (b) If the volume of oil is twice that of the object, what fraction of oil is displaced after immersing the object?

Answers

Answer:

(a) The density of the object is 316/343 × the density of the oil

(b) The fraction of oil displaced after immersing the object is 0.461 of the oil volume

Explanation:

(a) The volume, V of a cone of height, h and base diameter, D = 2×r is given by the following equation;

[tex]V = \dfrac{\pi r^{2} h}{3}[/tex]

The volume of the object is therefore;

[tex]\dfrac{\pi \times 4^{2} \times 14}{3} = 74\tfrac{2}{3}\pi \, cm^3[/tex]

Where 6 cm is above the oil level we have;

[tex]\dfrac{\pi \times \left (6 \times \dfrac{4}{14} \right )^{2} \times 6}{3} = 5\tfrac{43}{49}\pi \, cm^3[/tex] above the oil level

Therefore, volume of the oil displaced = [tex]68\tfrac{116}{147}\pi[/tex] cm³ = 216.11 cm³

The density of the object is thus;

[tex]\dfrac{68\tfrac{116}{147}\pi}{ 74\tfrac{2}{3}\pi} \times Density \ of \ the \ oil = \dfrac{316}{343} \right ) \times Density \ of \ the \ oil[/tex]

The density of the object = 316/343 × the density of the oil.

(b) The volume of the oil = 2 × Volume of the object = [tex]2 \times 74\tfrac{2}{3}\pi \, cm^3 = 149\tfrac{1}{3}\pi \, cm^3[/tex]

The fraction of the volume displaced, x, after immersing the object is given as follows;

[tex]x = \dfrac{68\tfrac{116}{147}\pi}{ 149\tfrac{1}{3}\pi} = \dfrac{158}{343} = 0.461[/tex]

The fraction of oil displaced after immersing the object = 0.461 of the volume of the oil

Buoyancy is a force that always acts in a _____ direction, exerted by a fluid on a body placed in the fluid.

Answers

Answer:

Upwards direction

Explanation:

The buoyancy force is caused by the pressure exerted by the fluid in which an object is immersed. The buoyancy force always points upwards because the pressure of a fluid increases with depth.

Answer:

Upwards direction

Explanation:

Why can a liquid take the shape of the bottom of its container?

Answers

Answer:

Liquids take on the shape of their container because they contain particles that can slide past each other. Particles in a solid,

Explanation:

Answer: Liquids take on the shape of their container because they contain particles that can slide past each other.

Help ASAP please (: The waves with the MOST energy have
amplitudes.
frequencies and
A) low; large
B) low; small
C) high; large
D) high; small

Answers

Answer: C

high; large

Explanation:

The wave energy is related to its amplitude and frequency.

The wave energy is proportional to the amplitude of the wave. So, wave with the most energy will have high amplitude.

Also, frequency is related to wave energy. The larger the frequency, the more the energy of the wave.

Therefore, The waves with the MOST energy have high amplitudes and large

frequencies.

Suppose you roll a bowling ball (m1)down the alley, and the ball strikes the pin (m2) sending it flying. The mass of the bowling ball is greater than the mass of the
pin. Predict the magnitude of the forces between the two objects during the collision

A)The bowling ballexerts a larger force on the pin because it was moving at
a high speed,

B)The pin exerts a larger force on the bowling ball

C)The bowing ball exerts a larger force on the bin because it is more massive

D)Both objects blert the same magnitude of force on each other due to Newtonsard Law

Answers

Answer:

The correct option is;

D) Both objects exert the same magnitude of force on each other due to Newton's 3rd law

Explanation:

Newton's third law of motion states that for every action there is an equal and opposite reaction

Since the bowling ball is rolled down the alley while the pin is displaced at such a speed that it flew, we have that the velocity of the rolling ball, v₁ is less than the velocity of the flying pin v₂

Therefore, whereby force = Rate of change of momentum produced we have;

The change of momentum of the ball = m₁×(v₁ - v₁ₐ)

The change of momentum of the pin = m₂×(0 - v₂)

Hence since the pin change in movement (flight) was more suddenly than the slowing down of the ball, the action of the rolling ball is equal to the reaction of the flying pin.

3.If a force of 12 N is applied to an object with a mass of 2 kg, what will be its acceleration?

Answers

Answer:

6 m/s^{2}

Explanation:

The formula for force is

F = mass x acceleration

F = 12 N

mass = 2 kg

So, you can change the formula to solve for acceleration.

acceleration = F / mass

a = 12 N / 12 kg

a = 6 m/s^{2}

explain why the statement “Dropped objects fall toward the ground" is a law and not a theory

Answers

The statement is a law because it accurately describes EVERY observation. No contradiction has ever been observed that would disprove it, or even cast doubt on it.  

(Wellll ... at least, no contradiction that wasn't immediately and easily explainable, like dropping a helium balloon, or a sheet of paper in a high wind.)

The statement is legal because it accurately describes all that is seen. No controversy has ever arisen to disprove it or cause it to doubt.

What is gravity?

The force of gravity is the force that the planet or another body of gravity absorbs. Gravity holds all the planets in orbit around the sun.

What causes gravity?

The greater the size of the two objects and the shorter the distance between them, the stronger the gravitational force. We also know that gravity can work in a complex system with several components.

Learn more about gravity here: brainly.com/question/4208016

#SPJ2

A girl is out jogging at 2.00 m/s and accelerates at 1.50 m/s^2 until she reaches a velocity of 5.00 m/s. How far does she get?

Answers

Answer:

7.00 m

Explanation:

Given:

v₀ = 2.00 m/s

v = 5.00 m/s

a = 1.50 m/s²

Find: Δx

v² = v₀² + 2aΔx

(5.00 m/s)² = (2.00 m/s)² + 2(1.50 m/s²)Δx

Δx = 7.00 m

If the frequency of a wave is
1000 waves per second, how long does it
take for one wave to pass a certain point?

Answers

Answer: the answer is D its in the book If u have it

Explanation:

The mass of Mars is 6.42 × 1023 kg. Its moon Phobos is 9378 kilometers away from Mars and has a mass of 1.06 × 1016 kg. What is the gravitational force between Mars and Phobos? 5.16 × 1015 N 5.16 × 1021 N 4.84 × 1022 N 4.84 × 1025 N

Answers

Answer:

A on Edge 5.16 x 10^15 N

Explanation:

The gravitational force between Mars and Phobos is 5.16*10^15 N.

Using the formula

F = G m1 m2/ r^2

  = 6.67*10^-11*6.42*10^23*1.06*10^16/(9378)^2

  = 45.39*10^28/87946884

  = 5.16 * 10^15 N

What is gravitational force ?

"The force of attraction on a body by earth is called gravitational force." Example : The leaves and fruits fall from a tree downwards towards the ground, water in a river flows down streams, a ball thrown up goes to a height and then returns back on ground are some examples of motion due to gravitational force.

What is phobos ?

"Phobos is the larger of Mars' two moons and is 17 x 14 x 11 miles (27 by 22 by 18 kilometers) in diameter. It orbits Mars three times a day, and is so close to the planet's surface that in some locations on Mars it cannot always be seen."

Know more about gravitational force here

https://brainly.com/question/24783651

#SPJ2

M
An object has a mass of 5.52 g and a volume of 12 mL. What is the density of the object

Answers

Answer:

0.46 g/mL

Explanation:

Density can be found using the following formula.

[tex]d=\frac{m}{v}[/tex]

where d is density, m is mass, and v is volume.

We know that the object has a mass of 5.52 grams and a volume of 12 milliliters.

m=5.52 g

v=12 mL

Substitute these values into the formula.

[tex]d=\frac{5.52 g}{12 mL}[/tex]

Divide 5.52 by 12

5.52/12=0.46

d=0.46 g/mL

The density of the object is 0.46 g/mL, and option C is correct.

If it’s a full moon how much of the moon are you actually seeing ?

Answers

Answer:

half of the moon

Explanation:

cause your seeing the front of it

Answer:

The light side of the moon so only half

Explanation:

Calculate the wavelength of an electron mass 9.1*10^-31kg moving with a velocity of 2.0*10^6m/s (h=6.63*10^-34Js) (Hint: De Broglie's wavelength)

Answers

Answer:

Wavelength, [tex]\lambda=3.64\times 10^{-10}\ m[/tex]

Explanation:

We have,

Velocity an electron is [tex]2\times 10^6\ m/s[/tex]

Mass of an electron is [tex]9.1\times 10^{-31}\ kg[/tex]

It is required to find the wavelength of electron. The De-Broglie wavelength of an electron is given by :

[tex]\lambda=\dfrac{h}{mv}[/tex]

h is Planck's constant

[tex]\lambda=\dfrac{6.63\times 10^{-34}}{9.1\times 10^{-31}\times 2\times 10^6}\\\\\lambda=3.64\times 10^{-10}\ m[/tex]

So, the wavelength of an electron is [tex]3.64\times 10^{-10}\ m[/tex].

As a charged object approaches a neutral object the objects.......
attract
spin
repel
no interaction

Answers

Answer:

attract is the answer.

Answer:

It attracts

Explanation:

It attracts the object

If you wanted to learn more about ancient scientific knowledge, whose life
would you research?

Answers

Ptolemy life is probably my most recommenced

Answer:

I would like to research Nikola Tesla's life

Someone please help me with this

1. A guitar string vibrates with a frequency of 100 Hz and it has a wavelength of 3 cm. Determine the speed of the wave that goes through that guitar string.

2. The speed of sound waves in air is around 340 m/s. Suppose that you hear a dog growl, and the frequency of the growl is 70 Hz. Determine the wavelength of the growl sound waves.

3. You are in a boat on the ocean. Some waves come by and you feel your boat move up and down. You whip out a stopwatch and find that you go up-and-down once every 5 seconds. So, the period of the wave is 5 s. You are watching the waves as you go up-and-down, and you see that the wave crests are 15 meters apart. So, the wavelength is 15 m. Use this information to calculate the speed of the waves.

4. Explain why these two waves have the same speed, even though some of their wave properties are different.
Wave A has a frequency of 3 Hz and a wavelength of 5 m
Wave B has a frequency of 6 Hz and a wavelength of 2.5 m

Answers

Answer: I think 1 is 300 metres per second.

Explanation: wave speed= wave length x wave frequency

wave speed = 3 x 100

wave speed is 300 m/s

A spherical mirror and a thin spherical lens have each a focal length of +10cm , the mirror and the lens are likely to be

Answers

Answer: Concave mirror and convex lens

Explanation: A spherical mirror and a thin spherical lens have each a focal length of +10cm, this means that distance of any object from the mirror is +10 metres.

While for the lens, the distance of any object to the other side of the lens is +10 metres. Therefore, the mirror is concave mirror and the lens is a convex lens.

HIME REMAIN
58:15
If business owners want to increase demand for their goods and services, what is the best action for them to take?
increase their models
increase their projections
decrease their prices
decrease their quantities

Answers

Answer:

decrease their prices

Explanation:

If we see demand curve then we can observe that demand for good decreases when price increases and demand for good increases when price decreases.

We also know intuitively that customer are price sensitive. That is their buying behavior changes with price of goods, Consumers prefer lower priced good.

So, if business owners want to increase demand for their goods and services

they should decrease their prices.

ILL MARK YOU THR BRAINLIEST SOMEONE PLS HELP ITS URGENT.
The acceleration of a skydiver of mass 80 kg changes from 9.8 m/s ^ 2 to 5.8 m/s ^ 2 as he falls through the air. What is the air resistance experienced by him?

Answers

Answer:

320N

Explanation:

Net force =w- AR

AR=w -force

AR=mg- ma

AR=80*9.8- 80*5.8

AR=784- 464

AR=320N

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