No, it is not possible.
A compound is a substance or material constituting of two or more elements that have been chemically combined together to form a new, different substance
Any elements that have been joined together chemically can only be separated back into their constituent elements by chemical means because the bonds holding them together can only be broken using chemical means.
A good example is sodium chloride, table salt. Poisonous chlorine gas and toxic sodium metal react together whereby sodium loses one electron which chlorine readily accepts and in the process an ionic bond is formed between the two resulting in a totally new, harmless compound , sodium chloride.
Only through electrolysis can sodium chloride be separated back into sodium and chlorine gas. No physical means can be used to do that.
Answer:
2.6645m
Explanation:
applying motion equations we can find the answer,
Let assume ,
u = starting speed(velocity)
v = Final speed (velocity)
s = distance traveled
a = acceleration
by the time of reaching the highest point subjected to the gravity , the speed should be equal to zero
we consider the motion upwards , in this case the gravitational acceleration should be negative in upwards (assume g =10 m/s2 downwards)
that is,
Remark
All the statements are correct except for B
B is wrong because the Force is inversely proportional to the square of the distance.
D is correct. That's what Newton saw when he watched the apple fall. The apple did all the moving.
A is correct. The formula is
F = G*m1*m2/r^2
If r is held constant the formula becomes
F = k * m1 * m2 where k = G/r^2
C is true as well, but it sure decreases in strength because of the distance and the smallness of G.
Answer:
45000 Kg.m/s
Explanation:
change in momentum = m( v¹-vi)
=3000(25-10)
= 45000
The force needed is less in water vs land because of the buoyancy in water
