Answer:
None of the stars give of light that is red-shifted
Explanation:
Motion of the observer or the source will cause a change in the wavelength of a wave. This is known as the Doppler effect. When an object and observer are getting close, blue shift occurs i.e., the wavelength gets shorter. When an object and observer are getting farther red shift occurs i.e., the wavelength gets longer.
Here, both the stars are getting closer to us so blue shift will occur.
Explanation:
Speed is distance over time.
500 km / 2 hr = 250 km/hr
Velocity is speed and direction.
250 km/hr north
Answer:
Explanation:
Sorry - it cannot be done as Brainly does not allow it. If you do not have too many points, you may consider closing this account and opening a new one with another name. Many people have multiple accounts here.
Answer:
192N
Explanation:
Since we were give mass and acceleration, therefore magnitude of force will be
F=ma
8×24=192
