Answer:
we can only see the parts of the Moon that are being lit by the Sun.
Explanation:
20 cm and 9 cm 30 cm is the distance for 5 mins so it will be 20 cm
Answer:
Radio waves have longer wavelength
Explanation:
Radio wave is an electromagnetic frequency that has the ability to travel through long distance. They have frequencies shuttling been the range of 10^4 hz and a frequency of 10^12 hz
Light wave is also called visible light. This is because it is visible to the naked eye, despite it being in the electromagnetic spectrum. It's frequency is usually between 4*10^-7 hz and a frequency of 7*10^-7 hz.
As can be seen from both, the radio waves length are quite far stronger than that of the light waves.
Answer:
-0.53 m/s²
Explanation:
Acceleration is the change in velocity over change in time.
a = Δv / Δt
First, convert m/min to m/s.
80 m/min × (1 min / 60 s) = 1.33 m/s
a = (0 m/s − 1.33 m/s) / 2.5 s
a = -0.53 m/s²
Answer:
10 cm/sec
Explanation:
using formula velocity = frequency * wave length
where: f=1/T
1/1=1
so frequency will be 1HZ ( due to 1 oscillation in 1 sec)
wave length will be 10 cm because while sloshing cup hold (1/2) half full length.
velocity = 1*10 = 10cm/sec.
velocity = 10 cm/sec