Answer:
Explanation:
The potential energy of the spring or the work done by the spring is given by :
............(1)
k is the spring constant
d is the compression
When the spring is compressed a distance d' = d/3, let W' is the work is required to load the second dart. Then the work done is given by :
.............(2)
Dividing equation (1) and (2) :
So, the work required to load the second dart compared to that required to load the first is one-Ninth as much. Therefore, the correct option is (E).
No it does not! As it is not moving?!
Answer:
mixture
Explanation:
All matter is made of particles; these can be single atoms or atoms chemically joined to make molecules. Using this fact, matter can be classified into three broad groups: elements, compounds and mixtures. In an element, all the atoms are of the same type. If more than one type of atom is chemically joined, then a compound has been formed. If more than one type of atom or molecule is contained in the same substance, and the particles aren't chemically joined, this is a mixture.
Answer:
249.5 minutes
Explanation:
Ali's speed is given by:
where
d is the distance covered
t is the time taken
We know that he can run d = 12 mi in t = 114 min, so he can keep a speed of
The length of a maraton is
L = 26.2 miles
So we can find the time it takes for Ali to complete the marathon as follows
B.) "Nuclear Change" <span> releases a large amount of energy per gram of material as a result of the conversion of matter into energy
Hope this helps!</span>
