Answer:
Frequency – The frequency of a wave is the number of waves that pass a given point in a certain amount of time. Frequency is measured in units called hertz (Hz), and is defined as the number of waves per second. A wave that occurs every second has a frequency of 1 wave per second (1/s) or 1 Hz.
Answer:
Magnitude of the force is

direction of the force is given as
West of South
Explanation:
As we know that force is a vector quantity and in order to find the resultant of two or more forces we need to add them vectorialy
So here we have

here we know that first force is of magnitude 2 N towards east

second force is also of 2.0 N due North

now from above equation


so magnitude of the force is given as


direction of the force is given as


West of South
Answer:
An object that is thrown, kicked or otherwise launched through the air is called a projectile.
Explanation:
You don't constantly feel your clothes on you because of sensory adaption. So basically your body got used to it.