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
Nesterboy [21]
2 years ago
12

a 15.0 kg chunk of ice falls off the top of an iceberg if the chunk of ice Falls 8.00 to the surface of the water what is the ki

netic energy of the chunk of ice when it hits the water and what is its velocity how do you work that out
Chemistry
1 answer:
kvv77 [185]2 years ago
8 0
When we can get the Kinetic energy from this formula KE= 1/2 M V^2and we can get the potential energy from this formula PE =  M g H
we can set that the kinetic energy at the bottom of the fall equals the potential energy at the top so, KE = PE
1/2 MV^2 = M g H
1/2 V^2 = g H
when V is the velocity, g is an acceleration of gravitational force (9.8 m^2/s) and H is the height of the fall (8 m).
∴ v^2 = 2 * 9.8 * 8 = 156.8
∴ v= √156.8 = 12.5 m/s
You might be interested in
In one of your classes, you were asked to start a program that would help the government in environmental conservation,
kirill [66]
The answer is C

Because using crocodile skin won’t benefit the environment
5 0
3 years ago
Which type of acetylcholine receptor is present on postganglionic neurons
Sonja [21]

Answer:

Mescarinic and Nicotinic

Explanation:

Postganglionic fibers can be present in both sympathetic and parasympathetic divisions, their main difference resides in how in the sympathetic division the postganglionic fibers are adrenergic and use norepinephrine (noradrenalin) as a neurotransmitter, in the parasympathetic division, on the other hand, fibers are cholinergic and use acetylcholine as a neurotransmitter, the<em> postganglionic neurons of sweat glands release acetylcholine for the activation of muscarinic receptors, another kind of receptor for acetylcholine are nicotinic receptors </em>that act as transmembrane sodium/potassium channels, while muscarinic receptors need to act through intracellular proteins.

I hope you find this informatiou useful and interesting! Good luck!

4 0
3 years ago
In which shell are the valence electrons of the elements in Period 2 found?
defon
B 2 
is which shell are the valence electrons of the elements in period 2 found
8 0
3 years ago
Read 2 more answers
Barium phosphide Ba3P2 BaP Ba3PO4
Novosadov [1.4K]

Answer:

It A(Ba3P2)

Explanation:

I took the test

6 0
3 years ago
Help Please... giving brainliest..
WINSTONCH [101]

1) Well, you need to logically think about which of the pecan trees would be better. Tree 3 may have more clusters but they taste bitter so this is out of the option. So Tree 4 and Tree 1 would be best because they both have rich and buttery tastes and they both have a lot of clusters.

2) Not quite sure about this one, sorry :(

3 0
2 years ago
Read 2 more answers
Other questions:
  • Steps for Seperating mixtures flowers peteale water and sugar
    9·1 answer
  • If I stop this is a mineral how could you identify what type of mineral it is
    14·2 answers
  • Calculate the total volume of gas (at 119 ?c and 731 mmhg produced by the complete decomposition of 1.71 kg of ammonium nitrate.
    7·1 answer
  • What is the molarity of a solution containing 45 grams of CaCl2 in 1.5 L of<br> water?
    6·1 answer
  • Why is sulphuric acid called a king of chemical?
    7·1 answer
  • Which of these provides evidence that a chemical reaction occurs?
    13·1 answer
  • In a solution the___is the liquid that the____is added to.
    6·1 answer
  • The United States was the first modern
    8·1 answer
  • A central atom has two lone pairs on opposite sides and four single bonds. What is the molecule geometry of the result?
    7·1 answer
  • which compound is soluble in excess ammonia solution. A. Copper (II) sulphate B. iron (II) chloride. C.Magnesium chloride. D. Ma
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!