# Posts by ira

Total # Posts: 19

**math**

Multiply 500 by 100 you get 50,000.

*March 29, 2016*

**physics**

Charge Q1=6.0 nC is at (0.30 m, 0), charge Q2=−1.0 nC is at (0, 0.10 m), and charge Q3=5.0 nC is at (0, 0). What is the magnitude of the net electrostatic force on the 5.0-nC charge due to the other charges? What is the direction of the net electrostatic force on the 5.0...

*December 17, 2015*

**Math**

In a shop selling bicycle and tricycle, a total of 80 pedals and a total of 98 wheels were counted. How many bicycles and tricycles does he have?

*August 8, 2015*

**8th grade science :(**

Oh My God thank you sooo much Ms. Sue!! :)

*December 9, 2013*

**8th grade science :(**

Please Please Please Please Please help me with this because I have looked at a million websites and I have read the whole chapter in my science book just trying to find the answer so can someone please help me with this question? Please? Thank you. Counting on you Ms. Sue ;)

*December 9, 2013*

**8th grade science :(**

How are the Heliocentric Model and the Geocentric Model Similar? List as many ways as you can.

*December 9, 2013*

**Statistics**

Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...

*July 16, 2013*

**physics**

Yes, please the question below too?! Problem 2: Displacement Current a) Problem: Open Switch on an RL Circuit b) and c)

*April 9, 2013*

**Finite Math**

The reading list for a literature class has 6 fiction and 8 nonfiction books. A student is to write a report on 5 books from the list during the semester. The report must include at least 1 and at most 4 reports of fiction books. In how many ways can the selection of books be ...

*March 28, 2013*

**College Pre Calc**

lim t>7 F(x) (1/t)−(1/7)/t-7

*December 5, 2012*

**College Pre Calc**

lim t>7 F(x) (1/t)−(1/7)/t-7

*December 5, 2012*

**chemistry**

Chemical analysis of a germanium crystal reveals indium at a level of 0.03091 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Ge matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Ge crystal?

*November 20, 2012*

**math**

2.25

*April 14, 2012*

**math**

find the range of possible values of x that satisfy the inequality x-5<2x/3+1

*January 31, 2011*

**Bio**

Hi there, could you please help me with the following questions: 1.) How does the Hardy-Weinberg provide a baseline for identifying how populations evolve, as a function of changes in their allele frequencies? 2.) Grey squirrels are predominate since they are camouflaged ...

*June 1, 2010*

**Science**

4)Explain why,when a soccer ball is kicked, the action and reaction forces don't cancel each other. a)The force of the player's foot on the ball greater than the force on the ball on the player's foot. b)They act on two different objects. c)The reaction force ...

*March 14, 2010*

**physics**

Does M represent gravity ?

*February 12, 2010*

**TLC peru balsam**

what is the rf value for peru balsam in order of identification?

*September 14, 2009*

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