Suppose a species of snake is living in a certain area. Some of the snakes in the population are black and some are orange. Over
2 answers:
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Answer: The longest wavelength of light that will produce free chlorine atoms in solution is 493 nm.
Explanation:
Energy required to produce free chlorine atoms from one mole of chlorine gas :
= 242.8kJ = (1kJ=1000J)
1 mole = molecules
For molecules = 242,800 Joules
For one molecule of chlorine gas =
According to photoelectric equation:
E = Energy of the photon of light used to produce free chlorine atoms
= frequency of the light used to produce free chlorine atoms
h = Planck's constant =, c = speed of light=
= wavelength of the light used to produce free chlorine atoms
The longest wavelength of light that will produce free chlorine atoms in solution is 493 nm.
1) 17.1 m/s
2) 17.1 m/s south
Explanation:
1)
The speed of an object is a scalar quantity indicating "how fast" is the object moving, regardless of its direction of motion.
Being a scalar quantity, it has only a magnitude, while it doesn't have a direction.
The speed of an object is given by the formula:
where:
d is the distance covered by the object, which is the total length of the path covered by the object
t is the time taken to cover the distance d
In this problem we have:
is the distance covered by the ducks
is the time taken
Substituting, we find:
2)
The velocity of an object is a vector quantity indicating how fast the object is moving in a certain direction.
Being a vector, velocity has both a magnitude and a direction.
The magnitude of the velocity is given by:
where
d is the displacement, which is the shortest distance in a straight line between the initial position and the final position of motion
t is the time taken for the displacement d to occur
And the direction is equal to the direction of the displacement.
In this problem:
south is the displacement
is the time taken
Substituting, we find:
south