Answer: The inconvienence is it is hurting our ecosystem because all of the plastic is being thrown away and it takes a long time to break down. On the other hand it is handy to have a lot of water supply. I thing water bottles are worth it.
Explanation:
The correct answer is B.g/mL
The resolution of a camera or other optical system is determined by the relationship between that two scales of Light waves of different wavelengths produce diverse colors.
A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is typically defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).
The distance between the crests or troughs of a wave motion is referred to as the wavelength () of light. 2. Frequency (f) - The frequency of a repeated event is the number of instances per unit of time. Frequency in the context of light is the number of wavelength repetitions per second.
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Answer:
a) 
b) 
Explanation:
Given:
mass of the ball, 
horizontal velocity of the ball, 
mass of the person, 
a)
<u>Using the law of conservation of momentum:</u>
b)
Given:
- rebound velocity of the ball,
Using conservation of momentum,
It represents the depolarization of the atria.
<u>Explanation:</u>
The P wave speaks to the depolarization of the left and right chamber and furthermore relates to atrial compression. Carefully, the atria contract a brief moment after the P wave starts. Since it is so little, atrial repolarization is typically not unmistakable on ECG.
In an ordinary ECG, there's three particular waves. The primary wave is the P wave, which speaks to the depolarization of the atria. This happens directly before the atria agreement and drive blood into the ventricles. The following wave is known as the QRS wave.
