Answer:
(a). The first wavelength is 401.0 nm.
(b). The metal's work function is 2.55 eV.
Explanation:
Given that,
Maximum kinetic energy = 0.65 eV
Second wavelength
(a). We need to calculate the wavelength
Using equation of work function for first wavelength
.....(I)
For second wavelength,
Put the value of second wavelength
....(II)
By subtraction equation (I) from (II)
(b). We need to calculate the work function
Using formula of work function
Put the value into the formula
Hence, (a). The first wavelength is 401.0 nm.
(b). The metal's work function is 2.55 eV.
That thing is used as a lever.
Starting from rest, the plane travels a distance
<em>x</em> = 1/2 <em>at</em>²
with acceleration <em>a</em> after time <em>t</em>. In this instance, it travels
<em>x</em> = 1/2 (3.20 m/s²) (32.8 s)²
<em>x</em> ≈ 1720 m
Answer:
Pteropods are little mollusks (related to snails, slugs and squid) that drift around in ocean currents, feeding on nutrient-rich plankton. Their rich diet makes them delicious to many fish. Seals eat many fish, and sharks eat seals and fish, so there it is: not even 6 degrees of shark separation.
Explanation:
Answer:
From Earth, the Sun looks like it moves across the sky in the daytime and appears to disappear at night. This is because the Earth is spinning towards the east. The Earth spins about its axis, an imaginary line that runs through the middle of the Earth between the North and South poles.