Answer:
this isn't physics this is german
In a Horsehoe magnet, maximum magnetic field is concentrated between the poles.
Hope this helps!
Answer:
The reaction only takes place if the reactants are in contact, then the surface exposed is very important because as the exposed surface of the reactants increases, the reaction velocity also increases. If the lumps are not broken up, a big amount of baking soda would be only available to react after the surrounding soda has already reacted.
Answer: 
Explanation:
Firstly, let's convert these length to meters 
, in order to work with the same units:
a. 400 millimeters
b. 22 kilometers
c. 170 meters
Here the lenght is already in meters
d. 3.3 centimeters
Now that we have all the lengths in meters, we can order them from shortest to longest:
or
