Relative to the water, the person is moving north at 4.1 m/s and east at 12 m/s. This means these are the two components of its velocity (we can think north as y-direction and east as x-direction), so the angle between the direction of its velocity with respect to the water is given by
from which
in the north-east direction.
Answer:
People are exposed to sources of radiation in all aspects of everyday life. Radioactive sources can be very useful but need handling carefully to ensure safety.
Explanation:
Answer: The correct answer is option(B.).
Explanation:
The co-formation theory explain that both moon and the earth are formed at same time from the primitive solar nebula (cloud made up of dust and gases) at the same and same place.
Where as capture theory suggests that the moon is an asteroid which was formed or created somewhere else in a solar system. And when the moon approached the earth planet it got captured by the earth's gravitational field.
Impact theory explains the formation of moon by the catastrophic collision between the earth and any planet half the size of earth's size.
Synchronous theory sheds the light on the rotation time, revolution time and sides of moon located from the surface of the earth.
Hence, the correct answer is option(B).
Alpha particles, because they are the heaviest ones (helium nuclei) and will travel around the body.