Answer:
C) high efficiency light bulbs, because they produce more heat
Answer:

Explanation:
given,
wavelength, λ = 50 cm
speed, v = 4 m/s
Amplitude, A = 5 cm
general equation of the wave along x- axis

sign is positive when wave is traveling in negative direction
now,



inserting all the values

Hence, the y-equation of wave is equal to 
The answer to ur question is Habitat the natural home or environment of an animal, plant, or other organism and ecocystem is <span>a biological community of interacting organisms and their physical environment.</span>
Answer:
mass of hot water must be 97.80
Explanation: