The distance of tiger's leap from the base of rock is 5.58 m
It is a question of two dimensional motion
The time of motion in two dimensional motion is given by:
t=
where y is the height and g is the acceleration due to gravity
y is given to be 7.5m and let us assume g to be 9.8 m/s^2
t =
= 1.24s
Using time and speed,
We know that distance is the product of speed and time,
Distance= speed x time
speed is given to be 4.5 m/s
distance from the base of rock = 4.5 x 1.24
= 5.58m
Hence the distance of tiger's leap from the base of rock is 5.58 m
Disclaimer:
The acceleration due to gravity is assumed to be 9.8 m/s^2
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Explanation:
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Answer:
The temperature raise is = 0.14 [C]
Explanation:
In order to find the temperature difference we must use the following equation:
But first we need to find the original volume V:
When the volume is increased the diameter will be larger:
D1 = 0.125[m] + 0.0002[m] = 0.1252[m]
Therefore the new radius will be:
r1=0.0626[m]
The new volume is:
Replacing all the calculated values in the equation:
A wedge is a simple machine that is used to cut or split an object.
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Answer:
Noble gases are the most stable chemical elements because they have completely filled valence shells containing the maximum number of electrons it can hold. Noble gases forms Group 18 in the modern periodic table. The order down the periodic table is as follows:
helium (He)
neon (Ne)
argon (Ar)
krypton (Kr)
xenon (Xe)
radon (Rn)
oganesson (Og)
Comparison:
The atomic mass increases as we move down the column because the number of neutrons and protons increase.
The melting and boiling points of the noble gases increases down the group. The reason is that the size of the atom increases downwards. Noble gases have London Dispersion Forces between them. As the dispersion increases, the London Dispersion Forces have more chances of forming a bond. Stronger bonds down the group means higher melting and Boiling points.
Similarly, the density of noble gases increases down the group as stronger forces are there between atoms.
The ionization energy decreases down the group of Noble gases because the electrons in bigger noble gases are located away from the nucleus and held less tightly by the atom.
Compared to other elements, Noble gases have low Melting and Boiling points.