initial height of the Pole - vaulter = 4.2 m
now when he reached the top of the pad his height is 80 cm
so the total displacement of the person will be = 4.2 - 0.8 = 3.4 m
now we can use kinematics to find the speed just before he touch the pad
now when he compressed on pad the distance after which he will stop is 50 cm
so now again using kinematics we can say
so it is acceleration by -66.64 m/s^2
Answer:
the molecules form new chemical bonds
Explanation:
The force that control the isostatic adjustment of the earth's crust is THE FORCE OF GRAVITY.
The isostatic adjustment of the earth crust refers to continuous movement of the earth crust or its deformation as a result of the force of gravity which act on it. The earth crusts that are located at the upper and a the core of the earth usually set up a balance between them which is called isostatic equilibrium.
The complete question is;
The gravitational force between two objects is ______ proportional to the products of the masses and _______ proportional to the square of the distance between them.
Answer:
First dash is directly
Second dash is inversely
Explanation:
From Newton's law of gravitation the gravitational force is given by the equation;
F = GMm/r²
Where:
F is gravitational force
M and m are two masses representing the two objects
r is the distance between them
G = universal gravitational constant
Thus, if we are to write it in proportion format, we will have;
F ∝ Mm/r²
From this proportion relationship, we can see that the Gravitational force is directly proportional to the products of the two masses and inversely proportional to the square of the distance between them.
