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
kvasek [131]
3 years ago
15

Two cannonballs are dropped from a second-floor physics lab at height h above the ground. Ball B has four times the mass of ball

A. When the balls pass the bottom of a first-floor window at height above the ground, the relation between their kinetic energies, KA and KB, is
Physics
1 answer:
denpristay [2]3 years ago
3 0

Answer:

1:4

Explanation:

The formula for calculating kinetic energy is:

KE=\dfrac{1}{2}mv^2

If the mass is multiplied by 4, then, the kinetic energy must be increased by 4 as well. Since they will be travelling at the same speed when they are at the same point, the relation between KA and KB must be 1:4 or 1/4. Hope this helps!

You might be interested in
Which of the following is not a step in the inquiry process
padilas [110]

"The process used by scientific investigations is the scientific method. This involves making an observation, stating a question, formulating a hypothesis, conducting an experiment and analyzing the results to form a conclusion. "

I would most likely go with B. but im not 100% sure

8 0
4 years ago
What is solar energy I need lots of detail
Whitepunk [10]
Solar energy is that energy remaining from the sun that we store in solar panels. This energy is produced because of its nucleus.
3 0
3 years ago
Read 2 more answers
Describe the difference between distance, position, and displacement
nata0808 [166]

Answer:

Explanation:

<em>Position is the location of the object (whether it's a person, a ball, or a particle) at a given moment in time.</em>

<em>Displacement is the difference in the object's position from one time to another.</em>

<em>Distance is the total amount the object has traveled in a certain period of time.</em>

<em />

<em>I hope this helps!</em>

<em />

5 0
2 years ago
which process was found after wegeners time, helped scientists find out how the continents actually move.
Genrish500 [490]
I don't quite know what you're asking so I'll just go on a rant :) Wegener created and supported the continental drift theory, which stated that all of the continents once formed a super continent called Pangea. No one at the time believed in the theory though so he spent the rest of his life trying to find evidence to prove it. However, after he died scientists began to find information that supported his theory. When scientists began to study Earth's surface and the layers below, the theory of the tectonic plates was formed. This theory stated that Earth's crust, the lithosphere, was divided into twelve moving plates. This theory did in fact prove that Wegener's theory was correct. Another theory that proved Wegener's theory to be true was the process of Sea Floor Spreading. This theory stated that at divergent plate boundaries, new ocean floor was being created and the old was being pushed away from the boundary, the old sea floor would then be pushed to deep sea trenches created by convergent plate boundaries and essentially recycled back into the Earth. I hope this helped, sorry it is so long :) 
6 0
3 years ago
An object falling. What type of energy is being described
SIZIF [17.4K]

Answer: Kinetic energy

3 0
3 years ago
Read 2 more answers
Other questions:
  • A solar flare is a sudden, rapid, and intense change in the brightness of the sun. Which of these is most
    7·1 answer
  • Lava that cools so quickly that ions do not have time to arrange into crystals will form igneous rocks with a _____.
    5·1 answer
  • What are the three categories of adult development?
    9·1 answer
  • F(x) = 3x^2+5x-14<br> Find f(-9)
    10·1 answer
  • We can use the textbook results for head-on elastic collisions to analyze the recoil of the Earth when a ball bounces off a wall
    11·2 answers
  • Suppose you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above i
    6·1 answer
  • Is kcl and kvl applicable to ac circuit?
    12·1 answer
  • Rays of light strike a bumpy road and are reflected.
    13·2 answers
  • Which of the following represents a possible magnitude for the force of static friction when Xavier applied 72.1 Newtons of forc
    9·1 answer
  • Evelynn is measuring the pitch of a piano note. What unit of measurement is she most likely recording her value
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!