Answer:
The approximate magnitude of the force of air resistance is 540 N.
Explanation:
Answer:
Time elapsed
Explanation:
Acceleration is a vector quantity. It is defined as:

where
v is the final velocity
u is the initial velocity
t is the time elapsed
Acceleration is measured in meters per second squared (m/s^2). It must be noticed that acceleration is a vector, so it also has a direction. In particular:
- when acceleration is negative, it means that the object is slowing down, so acceleration is in opposite direction to the velocity
- when acceleration is positive, it means that the object is speeding up, so acceleration is in the same direction as the velocity
Answer:
The new time period will be T.
Explanation:
The time period in terms of spring constant and mass is given by :

If mass and force constant is doubled, m' = 2m and k' = 2k
New time period is given by :




So, the new period will remains the same. Hence, the correct option is (C).
Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. ... They are hence known as 'electromagnetic' waves. The electric field and magnetic field of an electromagnetic wave are perpendicular (at right angles) to each other.
Hope this helps.
:)