Friday
December 6, 2013

# Posts by sally

Total # Posts: 833

Chemistry
the chemical dichlorobenzne will not disolve in water, what muct the polarity of dichlorobenznebe by and why?

examinations
i remember most of the things i'm actually pretty good in math usually with a 97+ average all the time. i'm also part of the math club in school. but i just want to know how well will i be able to do and how much time will i need to get a 95+ grade on the regents.

examinations
how long does it take to study for the algebra regents? do you think i can study for it in a month? I have taken the first 9 chapters of the barrons book and also studied for the shsat and passed but, will one month be enough for me to study and get at least a 95 and understan...

math
A tree that is 100 feet tall casts a shadow that is 150 feet long. Determine the angle at which the rays of the sun hit the ground, to the nearest degree.

Which situations are examples of a particle with a non-zero acceleration? (Select all that are true for full credit.) a)A car driving around a circular track at constant speed. b)A child going back and forth on a swing c)A runner moving in a straight line with a constant speed...

physics
Which situations are examples of a particle with a non-zero acceleration? (Select all that are true for full credit.) a)A car driving around a circular track at constant speed. b)A child going back and forth on a swing c)A runner moving in a straight line with a constant speed...

Science
A weight lifter lifts a barbell from the ground, raises it at a constat velocity and holds it motionless over his head. How does the force of the lifter compare with the wieght of the barbell at different stages of the lift?

algebra
solve by addition method x +3y +z =6 3x + y – z = -2 2x +2y – z = 1

physics
A 67.5-kg basketball player jumps vertically and leaves the floor with a velocity of 1.66 m/s upward. (Take upward as positive and forward as positive.) (a) What impulse does the player experience? magnitude direction (up,down, back or zero) (b) What force does the floor exert...

physics
A 0.255-kg volleyball approaches a player horizontally with a speed of 14.2 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 22.0 m/s. (a) What impulse is delivered to the ball by the player? (b) If the player...

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