Q:A 75kg painter stands on a 5.5m long uniform plank resting on a scaffold. If the plank's mass is 20kg , how close to the left end of the plank can he stand without tipping the plank? ( The scaffold supports are 2.5m apart, and the plank extends beyond the scafold supports, 1.5m on each end.)

The mass of the plank on the left side of the scaffold is: M? = (20 kg) × (1.5 m) / (5.5 m) = 5.45 kg The distance between the scaffold and the center of mass on the left side is: L? = (1.5 m) / 2 = 0.75 m So the torque of the plank on the left side is: T? = (5.45 kg)×(0.75 m) = 4 kgm The mass of the plank on the right side of the scaffold is: M? = (20 kg) × ((5.5 m) - (1.5 m)) / (5.5 m) = 14.5 kg The distance between the scaffold and the center of mass on the left side is: L? = ((5.5 m) - (1.5 m)) / 2 = 2 m So the torque of the plank on the left side is: T? = (14.5 kg)×(2 m) = 29 kgm Now, say the painter stands at X meter on the left side from the scaffold, so the torque added on the left side is: T? = X × (75 kg) The total torque on the left must be the same as the total torque on the right, so (4 kgm) + X×(75 kg) = (29 kgm) X×(75 kg) = (25 kgm) X = 0.333 m That is the maximum distance the painter can move away from the scaffold, so the distance to the end of the scaffold is: D = (1.5 m) - (0.333 m) = 1.167 m < - - - - - - answer

Q:Okay, I'm wanting to get my scaffold pierced, I'm just curious on how much they hurt, and how much they cost. Another thing, how long is it before it heals?

dont get anything peirced u will regret and its hurting ur body well not ur body its (gods body) actually but thats just ma opinion dont get oneee but its up to u.

Q:Whats a scaffold piercing?

To answer your other question, that is an anti eyebrow peircing which is on the cheek at the side of your eye. Hope this helps, Emma xxx

Q:Weight of bowl buckle scaffold

Vertical rod specification A (mm) B (mm) theoretical weight (kg) riser LG-60 6004.30 LG-120 12007.41 LG-180 180010.67 LG-240 240014.02 LG-300 300017.31

Q:Scaffolding plug (90, outside the 400), this is what ah? How to use ah?,

Press and rotate the bowl buckle, use the limit pin to fix the bowl buckleA bowl type steel tube scaffold column horizontal distance is 1.2 m, the vertical distance according to the load of scaffold is 1.2 m; 1.5 m; 1.8 m; 2.4 m, step away from 1.8 m and 2.4 M. when erecting pole connecting joints should be staggered, staggered first layer vertical rod 1.8 m long and 3 m the vertical rod, upward with 3 m long rod, the top layer with 1.8 m and 3 m two. The length of leveling under 30 m high scaffold verticality deviation should be controlled within 1/200, 30 m high above the scaffold should be controlled at 1/400~1/600, the total height of the vertical deviation should be less than 100 mm.The domestic vertical bar bowl buckle spacing of 600mm, the number of foreign pitch bar button spacing is some of the 500mm, the foreign specifications of the crossbar as well as 1m, 2m, 2.5m

Q:I'm getting one on Saturday, I already have double lobe piercings in each ear, and a flesh tunnel in my right, but i've heard cartiliage piercings hurt alot more than a normal lobe one?

I just got mine done last weekend, I wont lie its worse then a regular lobe piercing but every body reacts differently. The second hole definitely hurts worse then the first, but for me after the fact mine didn't hurt at all, some people say it throbs or burns but mine never did any of that. Good luck :)

Q:im asking this because when i get back to school in september i will probably need to take it out for PE once a week in the mornings if thats possible, i cant tell my teacher that i cant do PE because if they found out i had the piercing they wold ask me to take it out as its school rules to not have any piercing other than the lobes.so should i even get it, i really want it.

it can take 3 months.

Q:What is the difference between the bowl buckle scaffold and the fastener type steel pipe scaffold? What is the difference?

Mainly play a supporting role. The second is the external wall, the use of steel pipe scaffolding, such as structural decoration, which is divided into single and double scaffolding, double row with landing and cantilever.

Q:is it safe to get an industrial/scaffold and weaving piercing at the same time?

It's not SUPER dangerous, but I wouldn't recommend getting them at the same time.

Q:Okay I have some questions:-When I get it done can I have- 2 labret retainers put in to hide them from my school?-If I can, how discreet are the retainers?-How long to heal? (Even though the piercer will tell me)-Have you got a picture of a scaffolding piercing with retainers? May I see it (:-And a basic clear cleaning regime?Thankyous (: x

Im pretty sure you can have retainers for your industrial piercing if you get it done buuuuut you wont be able to put them in for a couple months cause industrials take a long time to heal. And like the person said below it really depends on your skin tone and what color retainer you buy. You shouldnt have a problem with the industrial though cause people cant see mine if I have my hair down. They take up to 1 year to fully heal. You can swap your piercings out after 3 months but beware it can close up on you if you have difficulty putting it in. You HAVE to wait 3 months before you can put retainers in. Industrials are 14g piercings so make sure your retainers are the right gauge. Your ear will be sore for a long time dear. Mine didnt hurt while getting it pierced cause I have a high pain tolerance but my ear was sore and bruised afterwards. The healing process is very delicate and your ear will be sore for a couple months. Make sure you get the piercing on the ear you dont sleep on. I use a 50/50 solution of Betadine and distilled water. Other piercers have different cleaning regimes though, so listen to your piercer. I always clean it with warm water and use a Q-tip to clean around the piercing. Then I put the cleaning solution on and twist the piercing around GENTLY so the solution will go into the cartilege. I do this 3 times a day and i will do it for a month. Industrials are really delicate piercings so always keep it clean :)