If you're in a situation where you need to silence your phone, you can continue to receive new email alerts by turning on the phone's vibration feature. 1  1. Tap Settings on the iPhone's home screen. 2  2. Touch Sounds, then tap the Vibrate switch to set it to On.. 3  3. Tap Settings to return to the Settings screen.
Here is the derivation of that D2/162.2, Weight of steel bar per meter = Area of the steel x Density of steel x Bar length. = (3.14 x D2 /4) x 7850 kg/m3 x 1m (refer these posts basic formulas & unit weight of materials) = (D2 x 6162.25)/(1000 x 1000)
A standard barbell is usually between 5 and 6 feet long and about 1-inch thick the entire length of the bar. The weight of the bar varies among models, but is typically between 15 and 25 lbs. An Olympic barbell is longer and heavier than a standard barbell. These bars are used in Olympic weightlifting competitions because they hold so much weight. They are 7 feet long and weigh 45 lbs.