# Posts by karrie

Total # Posts: 21

**Chemistry**

Container A contains argon gas at 0C and pressure 380mmHg. Container B of volume 700 ml contains neon gas at 25C and pressure of 3atm. Both of these gases are placed in a 2L vessel at 273K and the total pressure is 1.46atm. What is the volume of container A?

**Physics**

A 3.20 kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest. The composite system moves with a speed equal to one-half the original speed of the 3.20 mud ball. What is the mass of the second mud ball? kg

**Physics**

A 5.3 g coin sliding to the right at 26.8 cm/s makes an elastic head-on collision with a 15.9 g coin that is initially at rest. After the collision, the 5.3 g coin moves to the left at 13.4 cm/s. (a) Find the final velocity of the other coin. cm/s (b) Find the amount of ...

**Physics**

A railroad car with a mass of 1.93 ✕ 104 kg moving at 3.12 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.04 m/s. What is the decrease in kinetic energy during the ...

**Math**

i don't I ASK FOR HELP

**Physics**

Two blocks, the first with a mass of 30 kg, and the second 10kg, are connected by a string and pulled accross a frictionless surface by a force with a magnitude of 75 N. Find the magnitude of the tension acting along the string that connects them.

**geometry**

Given: QRST is a parallelogram. Prove: QRST is a square. Complete the proof below by choosing the reason for line number 2 and line number 6. Reason Statement 1. QRST is a parallelogram. Given 2. QRST is a rectangle 3. is a right angle Definition of a right angle. 4. ...

**teacher aide**

Children with a language or speech disorder are A sometimes suffering from an aphasia B always learning challenged C able to receive special help only after the third grade D unable to use communication boards I need help

**teacher aide**

Can someone tell me if I have it answered right. A common stereotype against females is that they are A Messy B Passive C Active D Competitive I say B passive I'm I right.

**Teacher aide**

Which of the following equipment would you use to show a filmstrip to an entire class? A filmstrip viewer B filmstrip projector C videocassette recorder D movie projector Just want to know if I have it right. Is it B

**Preschool**

Thanks you ms sue and bobpursley

**Preschool**

I'm doing a lesson plan for preschoo children and it says sensory expirences and im not sure what that means can anyone please help?

**childcare**

Thank you that helps so much!!!

**childcare**

preschool...I would like to do one about how the children are different yet they are alike in ways.

**childcare**

I have to do a lesson plan on diversity for my class and im not sure what kind of lesson plan to do and i cant find any websites that help me can some please give me suggestions on diversity

**child care**

thank you so much

**child care**

I'm doing a lesson plan on diversity for pre-school children and i was wondering what it means when it says sensory expirences?

**math 12**

Does anyone know how to do this question? The cross section of the roof of a house is modelled by the function y= -5/12|x-12|+5 I need to find the slope, height,and length of both sides including the base of this isosceles triangle. I'm having a extremely difficult time ...

**math 12**

I know this is alot to ask but could someone please check to see if I did this right and help me with the transformation. I was given this transformation problem. The cross section of the roof of a house is modelled by the function y= -5\12|x-12|+5, where y>0 or y=0. I need...

**Algebra I**

Hi: I am looking for confirmation that I have done this problem correctly: 6-(-5r)=5r-3 6+5r=5r-3 6+3+5r=5r-3+3 9+5r=5r 9+5r-5r=5r-5r 9=0

**CHILD DEVELOPMENT**

Which of the following budget items is usually given the lowest priority in running a child care facility? A. CLASSROOM MATERIALS B. SALARIES and BENEFITS C. MAINTENANCE D. SCHOOL EQUIPMENT salaries and benefits Since this is not my area of expertise, I searched Google under ...