Answer:
b) 252 Hz or 260 Hz
c) 0.25 s
Explanation:
b) The frequency of the beats is 4 Hz, and one tuning fork has a frequency of 256 Hz. Therefore, the second tuning fork is either 4 Hz lower or 4 Hz higher.
f = 252 Hz or 260 Hz
c) Period is the inverse of frequency.
T = 1/f
T = 1 / (4 Hz)
T = 0.25 s
Answer:
B. Kinetic energy.............
Answer:
African grey birds are not only really smart, they are helpful too. They are the first bird species to pass a test that requires them both to understand when another animal needs help and to actually give assistance.
which i think is pretty awesome and when they meet a person they start the boding process and their really sweet and kind at first but anyways
its true
Add more gasoline!
Hope this helps!
<em>604.8 kg</em>
<em>Hi there ! </em>
<em>d = m/V => m = d×V</em>
<em>V = l×w×h = 10m×12m×4m = 480 m³</em>
<em>m = 1.26kg/m³×480m³ = 604.8 kg</em>
<em>Good luck !</em>