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
monitta
2 years ago
9

A ball is dropped from the top of a cliff. By the time it reaches the ground, all of its gravitational potential energy has been

transferred into kinetic energy. If the ball is travelling at 20m/s when it hits the ground, what height was it dropped from? (Assume that the gravitational field strength is 10N/kg.)
Physics
1 answer:
Katena32 [7]2 years ago
4 0

Answer:

20 m

Explanation:

Initial potential energy = final kinetic energy

mgh = 1/2 mv²

gh = 1/2 v²

h = v² / (2g)

Given v = 20 m/s and g = 10 m/s²:

h = (20 m/s)² / (2 × 10 m/s²)

h = 20 m

You might be interested in
Both atypical and traditional antipsychotics _____ levels of _____.
LiRa [457]

Answer:

Both atypical and traditional antipsychotics <u>blocks</u> levels of<u> </u><u>serotonin</u><u>.</u>

Explanation:

These drugs are capable of reducing or turning off positive psychotic symptoms such as hallucinations, delusions, and language and behavior disorder.

In addition to also acting as mood stabilizers, they have an impact on mania, depression, and produce low anxiety.

These anti-psychotics work on the 5-HT2A receptor, it belongs to the family of serotonin receptors and it is a G protein-coupled receptor. 5-HT is short for 5-hydroxy-tryptamine, the chemical name for serotonin.

This receptor became notorious for its importance as a target for drugs like LSD. Later it became important again due to the action of many antipsychotic drugs, especially atypical ones.

5 0
3 years ago
15.<br> What can you do at school to help conserve the resources of the environment?
Alborosie

Answer: #1. Close the door when air conditioner is on  #2. I would use only 1 paper towel when drying your hands #3.  Recycle  #4. use water bottles that are not to be plastic.

<em>So these are things that you can do to conserve the resources from the environment in your school! </em> So hopefully i had helped you answer this question! Have a Great Day!

3 0
3 years ago
Isaac Newton was an English physicist who lived in the mid 1600s to the early 1700s. Newton stated that all objects are attracte
NISA [10]

Answer:

both staments are examples of scientfic laws

Explanation:

idk

6 0
2 years ago
Read 2 more answers
Explain the difference between displacement and distance
alisha [4.7K]
<span>Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.</span>
6 0
3 years ago
What happens when charged object is brought near uncharged object?<br> Attract or Repel ?
Makovka662 [10]
When a charged object is brought near to but does not touch a neutral object, it causes the side of the neutral object that the charged object is near to become the other charge. It causes charge migration within the neutral object so the two charges (positive and negative) move to opposite sides of the object. Because the two objects do not touch, they do not repel each other, but rather have a slight attraction because of charge migration. If the two object were to touch then they would repel.
5 0
2 years ago
Read 2 more answers
Other questions:
  • an automobile panel lamp with a resistance of 33 ohm is placed across the battery shown in Figure 11. What is the current throug
    15·1 answer
  • Please answer i need help asap!!!
    5·1 answer
  • What does it mean when the line on a graph of a distance vs. time changes direction?
    8·1 answer
  • Which particle is used as a beam to treat cancer? electron neutron proton
    8·2 answers
  • A research study that proposed to describe the behaviors of high school teachers would be
    10·2 answers
  • According to the principle of segregation, _____.
    15·1 answer
  • Starting from rest, a wheel with constant angular acceleration turns through an angle of 25 rad in a time t. Through what angle
    6·1 answer
  • Copper zinc and magnesium do not contain any iron. What word is used to describe these types of
    5·2 answers
  • Which of these describes the graviational force from a planet
    12·1 answer
  • Weight = mass x gravitational field strength
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!