1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
romanna [79]
3 years ago
10

A group of students gather for some fun during their summer break from school. Kendall and Jacoby have a water balloon fight dur

ing 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.
Physics
1 answer:
umka21 [38]3 years ago
5 0

Answer:

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

You might be interested in
Which section of the graph represents negative acceleration?
agasfer [191]
The area between the 10 and the 12.
8 0
3 years ago
Read 2 more answers
What happens in the crushing can experiment?
Dafna1 [17]

Explanation:

When hot water is poured on the can in a bucket of cold water, the can crushes off means it gets unshaped

7 0
3 years ago
Two mirrors are touching so they have an angle of 35.4 degrees with one another. A light ray is incident on the first at an angl
alexandr1967 [171]

Answer:

54.6°

Explanation:

From law of reflection i=r.

So, construct the reflected ray at 55.7°degrees from the normal and let it fall on the other mirror.  

Now draw the second normal at the point of incidence and again measure the angle of incidence, and draw the angle of reflection.

If you consider triangle AOB, one angle is ∠AOB=90°

 and ∠OAB is 54.6°

 

From angle sum property third angle ie ∠ABO=180°-90°-54.6°=35.4°

 

So, the second incident angle will be 54.6°

Hence, the second reflected angle will be 54.6 degrees.

8 0
3 years ago
Thomas and John are carrying a 43kg cylinder head on a 510cm X 510mm board. The cylinder head with dimensions of 43cm X 250mm li
tatyana61 [14]

John carry the heaviest load.

<h3>How to find out who is carrying the heavy load?</h3>

Write down given data from questions:

Board=510cm X 510mm.

Cylinder head with dimensions=43cm X 250mm.

Cylinder lies across the board 210cm from john.

Find out: Who is carry the heaviest load?​

Calculation:

We assume that mass of cylinder head = x kg

Then weight=x x 9*81

                 W=9.81x  Newton.

Weight per unit length= Weight/Total leanth

Weight per unit length= 9.81x/43

(w/l)=0.23x N/cm

From equation contition: (F_{J} +F_{T} =9.81x n)

F_{T} (510)=9.81x  (210+21.5)

F_{T} (510)=9.81 x (231.5)

F_{T} =4.452x N.

F_{J} =9.81x-4.452x

F_{J} =5.358 xN

Therefore F_{J} \geq F_{T}

To learn more about mass per unit length, refer to:

brainly.com/question/24180692

#SPJ9

4 0
1 year ago
Naming covalent compounds <br> P4S5
Andrew [12]

Answer:

what the heck is sakurfa

Explanation:

3 0
2 years ago
Other questions:
  • Which feature is a physical property of copper? A oven mitts B a wooden spoon C a metal bowl D rubber soled shoes
    7·2 answers
  • What is the amount of a certain isotope that occurs in a natural sample of an element
    6·2 answers
  • Which statement about thin lenses is correct? In each case, we are considering only a single lens. A. A diverging lens always pr
    6·1 answer
  • A 3.1-kilogram gun initially at rest is free to
    11·2 answers
  • You are designing a generator with a maximum emf 8.0 V. If the generator coil has 200 turns and a cross-sectional area of 0.030
    11·2 answers
  • Give an example of a measurement that is precise to the nearest tenth of a gram.
    13·1 answer
  • An unstrained horizontal spring has a length of 0.26 m and a spring constant of 180 N/m. Two small charged objects are attached
    8·1 answer
  • Un trineo de 20 kg descansa en la cima de una pendiente de 80 m de longitud y 30° de inclinación. Si µ = 0.2, ¿cuál es la veloci
    12·1 answer
  • What happens when electromagnetic waves cause a disturbance in electric
    5·1 answer
  • What is the probability that time headway is at most 6 sec? (round your answer to three decimal places.)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!