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A ball is thrown with an initial speed vi at an angle θi with the horizontal. The horizontal range of the ball is R, and the ball reaches a maximum height R/4. In terms of R and g, find the following.
(a) the time interval during which the ball is in motion
t=
(b) the ball's speed at the peak of its path
v=
(c) the initial vertical component of its velocity
yi=
(d) its initial speed
vi=
(e) the angle θi
θi=
(f) Suppose the ball is thrown at the same initial speed found in (d) but at the angle appropriate for reaching the greatest height that it can. Find this height.
hmax=
(g) Suppose the ball is thrown at the same initial speed but at the angle for greatest possible range. Find this maximum horizontal range.
xmax=
Explain what's the enthalpy change of 10g of water cooling from 205 C to 110 C. If water has the subsequent heat capacities: solid = 2.11 J/gK liquid = 4.18 J/gK and gas = 1.99 J/gK.
It is known that a particular diatomic molecule which includes hydrogen exhibits a 16.95 cm-1 spacing between its rotational lines. It is as well known that this molecule has a bond length of 141.5 picometers. Explain what is the mass in amu of th..
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silicon has three naturally occurring isotopes. 28si mass 27.976927 29si mass 28.976495 30si mass 29.973770 and 3.10
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