â¢ What happened to the sound as you slid the ruler back onto the desk? â¢ Describe the motion of the ruler. 2 1 MATERIALS ruler Pitch depends on the frequency of a sound wave. When you listen to music, you hear both high and low sounds. The characteristic of highness or lowness of a sound is called The frequency of a sound wave determines the pitch of the sound you hear. Remember that frequency is the number of waves passing a fixed point in a given period of time. A high-frequency wave with short wave-lengths, such as that produced by a tiny flute, makes a high-pitched sound.
Report This | Share this:How long does Metformin stay in your system?Sorry, one more thing. Clinically speaking, metformin peaks in the system 1-3 hours after taking it. It has a half-life of 6.2-17.6 hours.
Three out of 10 people who take metformin long-term develop a deficiency of vitamin B12. It can take 10 or 15 years to develop symptoms of B12 deficiency since the liver stores B12 - and it can take that long to deplete those stores.B12 deficiency causes damage to nerves that may be irreversible.urrent guidelines indicate that metformin is a cornerstone in the treatment of type 2 diabetes, but make no recommendations on the detection and prevention of vitamin B-12 deficiency during treatment. Our data provide a strong case for routine assessment of vitamin B-12 levels during long term treatment with metformin.