Answer:
A brighter light
Explanation:
Light waves travel through space via light particles called photons. This particles have in essence 2 properties: 1. Amplitude and 2.Frequency. The first one has to do with the intensity of light we see and the second one has to do with the energy (color). If we change only the amplitude, we will see a lighter or darker light and will keep the same color in all amplitude changes. But if we modify the frequency, the intensity will keep the same and the color changes as we move into the light spectrum.
Thus, increasing the amplitude, we will perceive a brigher light.
Whatever depends on the voltage would change very quickly i guess
Let v = the launch velocity.
Because the launch angle is 40° (with the horizontal), the initial vertical velocity is
v* sin(40°) = 0.6428v m/s.
Assume g = 9.8 m/s² and ignore air resistance.
At maximum height, the vertical velocity is zero.
Because the maximum vertical height is 10 m, therefore
(0.6428v m/s)² - 2*(9.8 m/s²)(10 m) = 0
0.4132v² = 196
v = 21.78 m/s
Answer: 21.8 m/s (nearest tenth)
Answer:
Option A and E
Physical properties are not reversible
Explanation:
According to International Astronomical union a planet must satisfy the following three conditions-
1. It should orbit around sun(parent star).
2. It should have enough gravity to maintain almost spherical shape.
3. It should have cleared its neighbourhood around its orbit.
Pluto does not fulfill the third criteria and hence it has been re-categorized as dwarf planet.