Sunday

April 20, 2014

April 20, 2014

Total # Posts: 16

**soc**

1)While it is rare, sometimes folkways can be laws.

**physics**

A stone is thrown straight up at 5.94 m/s. What is the stone's acceleration in m/s/s at the top of its rise?

**physics**

A stone is thrown straight up. To reach a height of 6.74 m above its release point, what must its initial speed be in m/s

**physics**

A ball was thrown straight up at 20.7 m/s then caught at the same place it was released. How many seconds was it in the air?

**physics**

A brick dropped from a roof hits the ground 3.29 seconds later. How high (in m) was the roof?

**math**

multiply using mental math 25*400=

**math**

There are 9 players on each basketball team in a league. Explain how you can find the total number of players in the league if there are 30 teams.

**Chemistry**

155g of Al203, molar mass is 101.96g/mol, number of moles is 1.52. ration 2to4 2x=4(1.52)=3.04 moles. mass = molar mass of Al is 26.98 times number of moles 3.04 = 82.019

**Physics**

Five forces act on an object. (1) 60 N at 90° (2) 40 N at 0° (3) 80 N at 270° (4) 40 N at 180° (5) 50 N at 60° What are the magnitude and direction of a sixth force that would produce equilibrium? Thanks for the help im confused on setting up the f(x) and f(y)

**Physics**

Thank you so much

**Physics**

You are standing on the beach and you notice 4 waves travel over your feet in 8 seconds. Your friend is 4 meteres from you in the water and you count 3 waves between you. How fast do the waves travel on the water?

**math-trig**

Use the double angle identities to find sin2x if sinx= 1/square of 17 and cosx<0 . Give exact answer.

**soc**

c

**sci 275**

what are three fresh and ocean water resource issues?

**sci 275**

What are three fresh and three ocean water resource issues?

**Math**

What is the answer to: (-42) / 7 X (-2) ?

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