# Posts by Chong

Total # Posts: 10

**Calculus**

If the velocity function of an object is v(t) = -5t4 - 20t + 100, find the displacement function given that the displacement is 50 ft when time is 1 second

**the application of iron(III)bromide?**

What is the application of Iron(III)Bromide ? I know it can be used as catalytic agent,in details, it can be used in which kinds of specific chemicals? Thanks

**CHEMICAL**

What is the application of Iron(III)Bromide ? I know it can be used as catalytic agent,in details, it can be used in which kinds of specific chemicals? Thanks

**Physics - Bernouli**

Water flows with constant speed through a garden hose that goes up a step 20.0 cm high. 1. If the water pressure is 143 kPa at the bottom of the step, what is its pressure at the top of the step? Now suppose the cross sectional area of the hose at the top of the step is ...

**Physics**

A 15 kg uniform ladder leans againt a wall in the atrium of a large hotel. The ladder is 8m long, and it makes an angle as 60 degree with the floor. The coefficient of static friction between the floor and the ladder is u+ 0.45. Assume the wall is frictionless. a) How far ...

**Social studies**

No think your wrong. I was watching pawn stars today on the history channel and it said some other person was the first president? Ok if he is, why do they say George Washington was the first president of the u.s.

**Social studies**

I went to yaho and it's not a real website or search engine?what do I do now?

**Social studies**

Who was the first president in the u.s. And it wasn't George Washington?

**chemistry**

first is c

**math word problem**

the difference between two numbers is 55. four times the smaller number plus 5 times the larger number is 176. what are the numbers? L-S=55 4S+5L=176 solve by substution.