march to may
red shift i think
as the motorcycle approaches the observer, the frequency increases.
As an object comes closer to an observer, the object's apparent size increases, allowing the observer to see more details. The object's brightness may also increase due to a larger portion of light being collected by the observer's eye or camera. Additionally, the parallax effect becomes more pronounced, providing a sense of depth and movement to the object.
.The frequency increases
The apparent size of an object decreases as it moves farther away from the observer. This is because the angle that the object subtends at the observer's eye decreases as the distance increases, making the object appear smaller.
When the source of a sound increases its speed, the pitch of the sound also increases. This is due to the Doppler effect, where the frequency of sound waves is perceived differently depending on the motion of the source relative to the observer.
A) wavelength B) frequency C) velocity D) amplitude
This is due to the Doppler effect, where the motion of the source compresses the waves as it approaches the observer. This compression increases the frequency perceived by the observer. If the source were stationary, there would be no relative motion and no frequency shift.
Yes, that's correct. The angular diameter of an object decreases as its distance from the observer increases. This relationship is based on the formula for angular diameter, which states that the apparent size of an object in the sky depends on both its actual size and its distance from the observer.
In outer space, the distance to the horizon depends on the observer's altitude. For example, from the International Space Station (ISS) at about 400 km above Earth's surface, the horizon is approximately 2,984 km away. As the observer's altitude increases, the distance to the horizon also increases.
As a wave source moves towards an observer, the pitch of the wave increases. This is known as a Doppler shift, where the frequency of the wave appears higher due to the relative motion between the source and the observer. Conversely, as the source moves away from the observer, the pitch of the wave decreases.
Doppler's effect does not happen when the observer is moving towards the source because unlike the source when observer moves forward the waves are not compressed and they pass the observer without being compressed and since the doppler effect is due to the Change in wavelength of the wave, it fails to occur.