Impulse is equal to change in momentum of an object. The only way to change an object's momentum is to apply a force for certain amount of time.
Impulse is calculated as follows: Δp = F * t
Put your values in the right spots and solve for F. In this case since F is multiplied by Time, you will divide both sides by the time to find your answer.
The answer is B. because NaCl are just two elements with one atom from each element
Into molecules of
sugar and
oxygen.
The complete reaction of the photosynthesis is in fact:

and the energy of the light coming from the sun is also used to make the reaction possible.
Answer:
the work done by gravity on the boy is 604.62 J
Explanation:
Given;
distance the boy slides, d = 3 m
angle of inclination of the playground, θ = 40⁰
mass of the boy, m = 32 kg
The vertical height, h, above the ground through which the boy falls represents the height of the triangle which is the opposite side.
The distance through which the boy slides, d, represents the hypotenuse side of the right triangle.

The work done by gravity on the boy is calculated as;
W = P.E = mgh
= 32kg x 9.8m/s² x 1.928m
= 604.62 J
Therefore, the work done by gravity on the boy is 604.62 J
Math is the process of using the given information, along with
all the general stuff that you know, to find the missing information.
With no given information, we have no way to even guess at
an answer.