Answer:
a. 5 Hertz
b. 35 rotations
Explanation:
a. Frequency is given by 
where 
is the period, in seconds. Given that 
, the frequency of this object's rotation is:
b. Since one rotation, or period, is completed in 0.2 seconds, divide the amount of time (7 seconds) by the time it takes to complete one revolution (0.2 seconds):
Answer:
Explanation:
The energy density of electromagnetic waves can be computed as
The power is the energy per unit of time. Hence we can take uE and Ub as 15.29J
By taking apart E and B we have
hope this helps!!
Answer:
plz mark me as brainliest plz
Explanation:
The gravitational force of the earth keeps us bound to the earth. Gravitational force between earth and sun makes the earth move around the sun. Gravitational force between moon and earth makes the moon go around the earth.
