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
Evgen [1.6K]
3 years ago
15

a book with a mass of 1 kg is dropped from a height of 3 m. what is the potential energy of the book when it reaches the floor?

Chemistry
1 answer:
mafiozo [28]3 years ago
5 0
Well, first of all, the formula for finding potential energy is;
PE=mgh
  Where; m is the mass
               g is the gravitational force or acceleration due to gravity
                h is the height. 
   Anyway, according to the question, the mass is 1kg, the acceleration due to gravity has a constant value of 10ms² . And the height is 3m. Now you just have to use all these in the formula. So;
mgh= 1 x 10 x 3. That will be 30. And the unit of potential energy is Joule. So the answer is 30 joules. Hope i helped. Have a nice day.     
You might be interested in
In Thomson’s model of the atom , what parts of the atom were in motion
trasher [3.6K]

Answer:

The electrons where in motion

4 0
3 years ago
In addition to canyons,what other kinds of geologic formations might separate similar organisms
serg [7]
The people of Finland, who are secluded to some degree from the rest of the world by water, develop certain diseases due to the lack of genetic material from other ethnicities and races.

Physical barriers prevent fish from one stream from mating with fish from another stream, leading to a less varied gene pool among those fish. As time passes, the fish become unable to successfully mate with other groups.

A mountain range prevents two types of goat from mating, causing the gene pool to become less varied.<span>

</span>
7 0
2 years ago
Which best describes the asteroid belt
harina [27]

i think that the answer is d. millions of small rocky objects

5 0
3 years ago
Read 2 more answers
Vegetarian diets can provide high levels of antioxidants and a lipid profile that can help prevent coronary disease. However, th
Arada [10]

Answer:

The correct option is: "Vitamin B12 (cobalamin) is not found in the vegan diet and is very low in the lacto-vegetarian diet"

Explanation:

Homocysteine is a VERY IMPORTANT type of amino acid, a chemical that the body uses to make proteins. Normally, vitamin B12, vitamin B6, and folic acid break down homocysteine and transform it into other substances that the body needs. There should be very little homocysteine left in the bloodstream. If you have high homocysteine levels in your blood, that could be a sign of a vitamin deficiency of the vitamins listed above, a heart condition, or a rare inherited disorder.

8 0
3 years ago
Read 2 more answers
A chemist has one solution that is 80% acid and another solution that is 30% acid. how much of the second (30%) solution is need
Aleksandr [31]

messed up oops !!!!!!!!!


8 0
3 years ago
Other questions:
  • Which two statements about an electric motor are true?
    15·1 answer
  • Examine the analogy and how it compares a part to a whole. Link : chain :: atom : _[blank]_​ what option best completes this ana
    9·2 answers
  • What is the only non metal in group 14
    7·1 answer
  • Which organelles surround the cell? Select two options.
    7·1 answer
  • An element has two isotopes. 90% of the isotopes have a mass number of 20 amu, while 10% have a mass number of 22 amu. Calculate
    13·1 answer
  • How many formulas units are in 3.11 mole of Ca(NO3)2 can you show your work by step by step correct answer
    15·2 answers
  • Please help me I will give you the brain thing and extra points. 2/9<br> image below
    10·2 answers
  • Calculate the percent composition of C6H12O6
    12·1 answer
  • Use the patterns you identified to estimate the likely melting point for potassium (K) in Group 1 and barium (Ba) in Group 2. En
    14·1 answer
  • You are asked to weigh approximately 0. 4g of acetylsalicylic acid to the nearest mg. When you enter the data in grams in your l
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!