Thursday
December 12, 2013

Posts by ali

Total # Posts: 442

physics
as a baseball player strikes the ball with his batt the 1kg bat applies an average force of 250N on the .15kg baseball for .2 seconds. A) what is the force applied by the baseball on the bat? what is the acceleration of the baseball? C) what is the speed of the baseball at the...

physics
Standing on a balcony, you throw your keys to a friend standing on the ground below. 1.2 seconds after you release the keys, they have an instantaneous velocity of 15.4 m/s, directed 60° below the horizontal. What initial velocity did you give them?

History
what were 5 new weapons used in world war 1?

Physics
what iz up my neha~~??! iight lez git tis ova wiff...ijjust nid a sec bra let me get this joint goin iight i am bak on de trak an ima do tis !@#\$%^& you kn wat im sayin' iight lez see shhhiiiiizzzzzz brraa were in the hell di yu git tis shi mein? tiz shi is hard mein~ damn!

calculus
lim (9x^4+2x+1)^1/2/(3x^2+1) as x->-infinity

physics
A cube of aluminum is 4cm on each side.find the mass of the cube. (Density of aluminum is 2.7g/cm3

math
regroup 22: 2 tens, 2 ones; 1 ten, 12 ones Name the word that describes what was done to show the number in different ways.

math
write three number sentences where difference is 50.

science
Steel expands 1 part in 100 000 for each 1°C increase in temperature. If the 1.5km main span of steel suspension bridge had no expansion joints, how much longer would it be for a temperature increase of 20°C?

chemistry
194

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