Answer:
-0.9 m/s²
Explanation:
Given:
Δx = 500 m
v₀ = 50 m/s
v = 40 m/s
Find: a
v² = v₀² + 2aΔx
(40 m/s)² = (50 m/s)² + 2a (500 m)
a = -0.9 m/s²
Solid iron at 25°C
the cooler the temperature the less energy the particles have
Answer:
Waves interact with matter in several ways. The interactions occur when waves pass from one medium to another. The types of interactions are reflection, refraction, and diffraction. Each type of interaction is described in detail below.
Answer:

Explanation:
For this particular problem, we are going to use the non-relativistic Doppler effect which, is the change in frequency of a wave concerning an observer who's moving relative to the wave source. The shifted wavelength is:
,
where
is the wavelenght as it comes from the source,
is the velocity of the source (the quasar) and,
is the velocity of the wave. In this case, the velocity of the wave is the speed of light,
.
Solving for
,
,
now computing
,

The velocity of the quasar is negative because it is getting close to the Earth!
Answer:
They killed 10 million people and registered it as a colony
Explanation:
Brainliest helps