Answer:
44.08 Volt
Explanation:
N = 8, A = 0.0775 m^2, R = 8.53 ohm, B = 0.222 T, f = 51 Hz
e0 = N B A w
e0 = 8 x 0.222 x 0.0775 x 2 x 3.14 x 51
e0 = 44.08 Volt
The reason why a delivery truck filled with birds sitting on the floor be heavier than a truck with the same birds flying around is because when the birds are sitting on the floor, they are adding their weight to the truck.
Meanwhile, if the birds are flying around they aren't resting on the truck or touching it, so therefore their weight wouldn't be added to the truck.
The mass of the truck will remain the same as you cannot change the mass but the weight will vary depending on the items and objects placed in it.
Answer:
The velocity is 
Explanation:
From the question we are told that
The frequency of the signal sent out is 
The frequency of the signal received is 
The speed of sound is 
Generally the frequency of the sound received is mathematically represented as
![f_r = f_s [\frac{v_s + v}{v_s - v} ]](https://tex.z-dn.net/?f=f_r%20%3D%20%20f_s%20%20%5B%5Cfrac%7Bv_s%20%20%2B%20v%7D%7Bv_s%20%20-%20v%7D%20%5D)
where v is the velocity of the object
=> ![40 *10^{3} = 38 *10^{3} * [\frac{341 + v}{341 - v} ]](https://tex.z-dn.net/?f=40%20%2A10%5E%7B3%7D%20%3D%20%2038%20%2A10%5E%7B3%7D%20%2A%20%20%20%5B%5Cfrac%7B341%20%20%2B%20v%7D%7B341%20%20-%20v%7D%20%5D)
=> 
=> 
=> 
=> 
Answer: element
Explanation:
Couldn't be a compound because contains same type of atoms. Can't be a mixture either because not physically mixed or anything. Isn't a solution ofc because oxygen is a gas.