(A)The freezing point is lower.
(B)They are the same.
(C)The melting point is lower.
(D)They are both higher than the boiling point.
B) they are the same
why is water vapor important in weather
a small implosion
a large explosion
a large implosion
A chain reaction is a nuclear reaction that occurs when sufficient unstable nuclei are present so that when one splits (decays), its products hit other unstable nuclei, causing them to decay and initiating a chain reaction.
If this reaction goes uncontrolled, a massive explosion occurs. Such a reaction is the type that went uncontrolled when nuclear bombs were dropped over Hiroshima and Nagasaki in World War II. A chain reaction is much like dominoes all in a row; when one goes down, they all go down in order. The only way to block the chain reaction is to pull out a domino or to block the fall so the "chain" is broken.
The amount of fissionable material needed to accomplish a spontaneous chain reaction is called the critical mass. The critical mass for U-235 is about 1 kg. This explosive fission process takes place quickly, and an incredible amount of energy is released when it occurs.
So it would be C.
the answer for this is c
Answer:
A pH less than 7 is an acid, with number 1 indicating stronger acids
Explanation:
The pH scale has a range of 1 to 14. The following has been concluded on the pH scale:
1. Between 1 and 6 indicates an acid solution.
2. 7 indicates a neutral solution
3. Between 8 and 14 indicates an alkaline or basic solution.
Now with these information, we can answer the above questions as follow:
A pH less than 7 is an acid, with number 1 indicating stronger acids
A pH less than 7 is an acid. Lower pH values mean stronger acids.
A pH less than 7 is considered an acid. The pH scale measures the concentration of hydrogen ions in a solution, therefore a lower number on the scale indicates a higher concentration of hydrogen ions and consequently a stronger acid. For example, lemon juice, with a pH of around 2, is much more acidic than black coffee, which has a pH of about 5.
#SPJ3
Explanation:
Wind mill
It consist of shaft pole and blades that can rotate .
It converts wind energy into electrical energy .
The shaft of wind mill is connected to shaft of armature of generator .
When the fast moving wind rotates the blades of windmill its shaft rotates, armature rotates hence electricity is produced which is further used for various purposes .
Advantage of using wing energy
it is natural renewable resource
It is eco friendly
Disadvantage :
1. It cant be established everywhere
2. It requires large area
3. It is an expensive project
4. Wind dosen't blow all the time so win energy cant be produced every time
5. Minimum speed of wind required is 15km per hour .
So, the wind turbine generating electricity involves mechanical energy of wing and blades .
Answer:
A wind turbine generating electricity involves :
1. electromagnetic energy.
2. thermal energy.
3. solar energy.
4. mechanical energy.
Explanation:
this is correct for edge2020