Tuesday
December 10, 2013

# Posts by kara

Total # Posts: 391

chemistry1
how much heat is needed to melt 25.4 grams of iodine at its melting point?(Hfusion+61.7J/g)

physics
i have 9 different ways. i just need one more.

physics
THERE ARE 10 WAYS TO DRAW A CIRCUIT WITH FOUR 5OHM RESISTORS. WHAT ARE THEY?

Chemistry
In the classroom, we reacted Mg(s) + 2HCl -> MgCl2(aq) + H2 (g) (0.31 g of Mg(s), and 99.46 g of HCl) Initial temp. = 22.5 celsius, max. temp. 36.0 celsius and MgO(s) + 2HCl -> MgCl2(aq) + H2(g) (1.00 g of MgO(s) and 97.71 g of HCl) Initial temp. 22.0 celsius, max. temp....

an equation is a problem with an equal sign ex. 3x=1 or 10y-4=7

Physics
In a skating stunt known as "crack-the-whip," a number of skaters hold hands and form a straight line. They try to skate so that the line rotates about the skater at one end, who acts as the pivot. The skater farthest out has a mass of 73.0 kg and is 7.70 m from the ...

Chemistry
Calculate the pH of a 25 mL distilled water sample after the addition of 2 mL of HCl Calculate the pH of a 25 mL distilled water sample after the addition of 2 mL of NaOH

physics
A phonograph record has an initial angular speed of 37 rev/min. The record slows to 10rev/min in 1.3 s. What is the record’s average angular acceleration during this time interval

Physics
nevermind. im dumb. just got my answer switched around. dont need help anymore

Physics
The resistance of the wire in the windings of an electric starter motor for an automobile is 0.0190 Ohms. the motor is connected to a 12 V battery. What current will flow through the motor when it is stalled?

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