Answer:The speed is 54 mm/s, the units are mm/s.
Explanation:
1) Data:
a) λ = 6mm
b) f = 9 Hz = 9 s⁻¹
c) v = ?
2) Formula:
wave equation: v = f × λ
3) Solution:
v = 9 s⁻¹ × 6mm
v = 54 mm/s
The speed is 54 mm/s, the units are mm/s.
one of the property of radio waves is that they have long wavelength. due to their long wavelength , they undergo diffraction around the mountains and thus the waves spread around the mountain. this makes them eligible to be used for long distance communication. they can coded and decoded also . that is why they are used in television and radio system
The greatest point for kinetic is at the bottom and in the middle it is in half and at the top it is at the highest in potential energy.
Answer:
The variable manipulated or controlled by the experimenter is called the independent variable.
Example:
If the flow velocity at the bottom of a tank is measured by varying the height of water in the tank, we are measuring velocity as a function of water height.
Therefore,
water height = independent variable (controlled)
velocity = dependent variable (measured in response to water height).
Mathematically,
v = f(h)
where v = response variable (dependent)
h = controlled variable (independent).
