# Posts by corinne

Total # Posts: 32

**Physics**

I don't know how to solve this problem. In it, I am given the mass (4 kg), acceleration (0), velocity (20 m/s), coefficient of friction (.2), and the applied force (10 N downwards with an angle of 30 degrees above the horizontal). I must find the displacement of the object...

**Math**

IGNORE THE LAST ONE ON (fog)(x). IT IS WRONG. It should be f(g(x)), where 3x^2 substitutes for x in f(x). It becomes 2(3x^2)+5. If it were g(f(x)), it would be opposite.

**Math**

f(x)=2x+5;g(x)=3x^2 which expression is equal to (Fog)(x)? (Fog)(x) means f(x)*g(x). If f(x)=2x+5 and g(x)=3x^2, then you can substitute them. The expression becomes (2x+5)*(3x^2). Simplify

**Math**

Which expression is equal to (f+g)(x)? f(x)=x^2+3;g(x)=x-1 (f+g)(x) is the same as f(x)+g(x). If f(x)=x^2+3 and g(x)=x-1, you can substitute them out. The expression becomes (x^2+3)+(x-1). Simplify

**astronomy**

A hockey puck is sliding along on frictionless ice with a velocity of 4.42 m/s. Assuming it does not collide with anything, how fast will it be moving in 1.20 seconds?

**physics**

A square with side lengths of 1.05 m has a charge of 8.00 mC at each corner. Calculate the magnitude and direction of the force on each charge

**statistics**

Thank you! I was able to complete the first question. Is SE Standard Error? and m=mean? Thank you again

**statistics**

Salaries for various positions can vary significantly depending on whether or not the company is in the public or private sector. The U.S. department of labor posted the 2007 mean salary for human resource managers employed by the federal government, as &76, 503. Assume the ...

**MATH Fractions**

thank you very much. I appreciate it :)

**MATH Fractions**

Thank you very much Damon :) can you explain how you got 9/3 for third grade

**MATH Fractions**

Can someone help? Jeff rode his bike around the bije trail that was 1/3 of a mile long. he rode around the trail 9 times. right a fraction grader than 1 for the distance. how many miles did jeff ride?

**Physics**

Two particles with charges +8e and -8e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 7.07 x 10-12 m apart. What is EPEfinal - EPEinitial, which is the change in the electric potential energy?

**Math112**

Perform the indicated operation (8t^2-4+2)-(5t^2-5t+7)

**aig math**

one number form 75 is 100

**math**

y=sin^3(lnx)

**calculus**

find dy/dx 1. y=(lnx)^3 2. y=x^4lnx 3. y=sin^3(lnx)

**History**

Acrostic poem for Alabama

**French**

I don't understand why some verbes pronominaux use s'y instead of se. What is the function of the y? And how does it change the meaning?

**math**

If a swimming pool that has a diameter of 40 feet and a height of 5 feet can be filled in 50 minutes, how long will it take to fill a pool that has a diameter of 36 feet and a height of 6 feet?

**3rd grade**

Ã©crire une expression Ã©gale Ã 2000 en utilisant une seul fois chacun des nombres 1;2;3;4;5

**math**

ryan left the science museum and drove south gabriel left three hours later driving 42mph faster in s effort to catch up. after 2 hours gabriel finally caught up. find ryans speed

**math**

9 divided by 6/7 .. i have no idea how you do this so please help!

**9th Algebra**

O and btw im in 8H buhh its high skool work so yahh Earth Sci all that good stuff Corinne Moore

**9th Algebra**

what is 10 to the second power in standard form? Please answer by the end of today. Please and Thank You Corinne Moore

**Algebra**

Perform the indicated operations and simplify (2x - 6) (x + 1) - (x - 7)^2

**Chemistry**

I am trying to complete one of those charts, where you find an element, its proton number, its electron number, it's charge, and whether it's an ion or an atom, based on looking at the Periodic Table. I get how it works, sort of, like for Lithium, you look at the ...

**Choosing High School Courses**

I want to major in something English or History related, probably Secondary Education, International Studies, or Journalism. I am currently enrolled in chemistry and I am doing horribly. Would colleges rather see me take chemistry and get a bad grade, or would they prefer me ...

**physics**

a man throws a rock horizontally off a building with an initial velocity of 22.4 m/s. it hits the ground 91.6 m from the building. how tall is the building? (positive value)

**physics**

you are standing in a hole that is 8.53m deep. you shoot an arrow with a veloctiy of 34 m/s at an angle of 33 degrees. how far from you will the arrow hit the ground?

**physics**

a football place kicker kicks the ball with a velocity of 18.2 m/s at an angle of 53 degrees. how far from the kicker will the football hit the ground?

**A math question needs answering**

what is the total of 99 cents plus 7.25% tax?