Answer:
30.36°
Explanation:
By using linear momentum; linear momentum can be expressed by the relation:
where ;
m= mass
= velocity of components in the x direction
= velocity of components in the y direction
If we consider the east as the positive x and north as positive y which is synonymous to what we usually have on a graph.
Then;
Initial momentum = 
= 
However, the masses stick together after collision and move with a common velocity: 
∴ Final momentum = 
= 
From the foregoing ;
initial momentum = final momentum
So;
Finally;
The required angle θ = 
θ = 
θ = 
θ = 30.36°
Answer:
Inclined plane.
Explanation:
Geometrically, a screw is a narrow inclined plane that is wrapped around a cylinder. Like the other simple machines a screw can amplify force; a small rotational force (torque) on the shaft can exert a large axial force on a load.
A screw is a cylinder with a head (solid top) at one end and a pointed tip (like a nail) at the other end.
The mechanical advantage of the screw depends on the space between the threads and the length (and thickness) of the screw. The closer the threads are, the greater the mechanical advantage. It is easier to drive a screw into an object if the thread spacing is smaller.
Answer:
Carbon and oxygen
Explanation:
White dwarfs are the stars which have used all their hydrogen and helium fuel and now exists with only carbon and oxygen in their core. Their size reduces up to one hundredth times of the size of their sun in early stages and yet they possess the same mass.
Due to loss of fuels and impact of gravity, a young star collapses on itself leading to formation of dwarf star.
Answer: 10%
Explanation:
n this case, if the earth' mass goes up by 10%, then the force of gravity on you, or your weight, will increase by the same amount, that is 10%
