Answer:
Explanation:
a )
the value Vy at the top of the bullet's trajectory will be zero . At the top , only the horizontal component Vx will exist .
b )
At the top Vy = 0
initial velocity will have vertical component = 260 sin30 = 130 m /s
acceleration = - g = - 9.8
v = u - gt
o = 130 - 9.8 t
t = 13.26 s .
c )
Total time = Time of ascent + time of descent
= 13.26 + 13.26 = 26.52 s
d )
Range R = u² sin2Ф / g , where u is initial velocity , Ф is angle of throw , g is acceleration due to gravity .
R = 260² sin 2 x 30 / 9.8
= 5973.8 m .
D- Nuclear fission and fusion reactions
Answer:
Quantum theory
Explanation:
The scientific foundation in quantum mechanics is quantum theory, which describes the existence and behavior of mass and antimatter at the subatomic particles levels. Quantum theory and quantum theory are often related to as the existence and behavior of matter in the universe at that stage.
Answer:
it states that pressure exerted anywhere in a confined incompressible
Explanation:
i.e the pressure used anywhere in a captive incompressible fluid is transmitted equally in all directions throughout the fluid such that the pressure ratio (initial difference) remains the same
<span>The statement that best describes how metallic bond properties are important for making and using paperclips is Ductility is important for making paperclips, and malleability is important for using them.
Ductility is defined as the ability of the solid material to stretch under tensil stress. The metal of the paper clip is ductile when paperclips are made because the metal is stretch until it forms a wire.
Malleability is defined as the ability of the solid material to deform under pressure. Paperclips are very malleable. It can be manipulated into forming different shapes with the used of our hand strength.
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