Answer:
"its varying position means that the Sun lights up different regions, creating the illusion that the Moon is changing shape over time. The best way of getting to understand the lunar phases is to regularly go out on a clear night when the Moon is in the sky and observe it."
Given: Plank's constant h = 6.626 x 10⁻³⁴ J.s
Speed of light c = 2.998 x 10⁸ m/s
Wavelength λ = 500 nm convert to meter = 5 x 10⁻⁷ m
Required: Energy E =?
Formula: E = hc/λ
E = (6.626 X 10⁻³⁴ J.s)(2.998 X 10⁸ m/s)/5 x 10⁻⁷ m
E = 3.97 X 10⁻¹⁹ J or in termS of electron volt
E = 2.48 eV
They both show the constructive power of erosion.
hope i helped
Answer:
The magnitude of the spring force on the disk at the moment it is released is 13.8 N
Explanation:
Given;
Mass of the disk, m = 1.12 kg
spring constant, k = 230 N/m
extension produced in the spring, x = 6.0 cm
According to Hook's law, the force applied to an elastic material is directly proportional to the extension produced.
F = kx
Where;
K is the spring constant
x is the extension of the spring
F = 230 x 0.06
F = 13.8 N
Therefore, the magnitude of the spring force on the disk at the moment it is released is 13.8 N
<span>assuming the pitch is 100yards long, the player runs 100yards to the other goal then a further 50 yards back to the 50-yard line. So he/she runs 150yards in 18s
150/18 = 8.33yards per second average speed.
Initial velocity = 0, average velocity =8.33
Vav = (Vinitial+Vfinal)/2
Vav = 4.16m/s</span>