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.
Answer:
B. velocity and D. mass
Explanation:
The formula for kinetic energy is KE = 1/2 * m * v^2. The two variables in this equation are mass (m) and velocity (v).
Gravity and height are used to calculate potential energy, not kinetic energy.
Volume isn't used to calculate energy.
Answer:
Kinetic energy is the energy possessed by a body due to its motion. Potential energy is the energy possessed by a body due to its position.
The formula for acceleration is the velocity times the inverse of time so it would be 21 times 1/13. So roughly 0.0769... is the acceleration(m/s^2).
Answer a) is incorrect as sound does not travel in a vacuum.
