Answer:
Black holes are detected as surrounding material (like gas) is funnelled by the force of gravity into a disk around the black hole. The gas molecules in the disk swirl around the black hole so fast that they heat up and emit X-rays. These X-rays can be detected from Earth.
Explanation:
The strength of magnetic field is one of two ways that the intensity of a magnetic field can be expressed, Technically, a distinction is made between magnetic field strength H, measured in amperes per meter (A/M) and magnetic flux density, B measured in Newton Meters per ampere (Nm/A)
Acceleration = (change of speed) / (time for the change)
Acceleration = (27m/s - 0m/s) / (10 s) = 2.7 m/s per second = 2.7 m/s²
Answer:
Explanation:
The equation for frequency is
where
f = frequency, v is velocity, and lambda is wavelength. Filling in:
and
so