Answer:
Resultant amplitude is 0.53 m.
Explanation:
Amplitude is defined as the maximum displacement of wave particles from their respective mean positions.
The resulting amplitude of any two waves is given by the relation :
A = 
Here, A is resultant amplitude, A₁ and A₂ are the amplitudes of two waves respectively and x is the difference in phase angle of the two waves.
According to the problem, A₁ is 0.4 m , A₂ is 0.23 m and x is zero. So, the above equation becomes,
A = 
A = 
A = 0.63 m
With efficiency of 80%, the machine outputs 50000 J. The input to the machine should represent 100%.
If
80% --- 50000 J
100% --- ?? J
Solution:
Input work = (100/80)*500000 J = 62500 J
Answer: The ratio of carnivorous species to all mammal species is 1:20
Explanation:
250:5000 = 250/250 = 1
250:5000 = 5000/250 = 20
Answer = 1:20
The answer is B. helium-filled balloon, since sound travels the slowest through gases.
Magnitude: Magnitude generally refers to the quantity or distance.
Attraction: A force that makes things move together and stay together.
Repulsive: The feeling of being repelled, as by the thought or presence of something; distaste, repugnance, or aversion.
Current: Current is the rate of flow of electric charge. A potential difference (voltage) across an electrical component is needed to make a current flow through it.
I hope that helps :]
