Wednesday
April 16, 2014

Posts by lizz


Total # Posts: 18

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math
A warehouse is 120 feet tall and casts a shadow 288 feet long. At the same time, julie casts a shadow 12 feet long. how tall is julie?

Science
In SI units m^3 or L (liter)

College Physics
1. A certain projectile is launched with an initial speed v0. At its highest point its speed is v0/6. What was the launch angle? 2. The "hang time" of a punt is measured to be 3.50 s. If the ball was kicked at an angle of 61.0° above the horizontal and was caugh...

physics
Consider the motion of the hour hand of a clock. What angle does the hour hand make with respect to the vertical 12 o'clock position when it is at the times below? Express each angle in both degrees and radians, and measure angles going clockwise from the vertical axis. 5 ...

HCA 230 COmmunicaiton in Health Care
It wasn't figuring out how to solve the problem in the case study I was worried about, I had just never had to do an introduction or conclusion within a PowerPoint Presentation and was over thinking what exactly the teacher was wanting. She finally replied back two days la...

HCA 230 COmmunicaiton in Health Care
I am not looking for someone to do this, I am just trying to figure out how am I suppose to do an introduction and conclusion in a PowerPoint for this. I understand everything else in the directions, but it's my final project and I want to make sure I have everything corre...

Vector Calculus
2. Use the properties of the dot product to show that (⃗b·⃗c)a−(⃗a·⃗c)⃗b is perpendicular to ⃗c. Must be shown for arbitrary vectors. Im sorry, I'm really stuck on this. I know that is a vector is perpendicular to an...

physics
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3740-kg space tug and a 6500-kg asteroid. They pull on the asteroid with a force of 470 N. Initially the tug and the asteroid are at rest, 480 m apart. How much time does it tak...

physics
What are the three longest wavelengths for standing sound waves in a 126-cm-long tube that is? (a) open at both ends and (b) open at one end, closed at the other?

chemistry
21.00 mL of 0.200 M HBr is titrated with 0.351 M NaOH. What is the pH after the addition of 6.56 mL of the base ?

chemistry
10.0 mg of a certain protein were dissolved in water to make a solution of 3.50 mL at 28.0o C. If the osmotic pressure is 1.30 torr, what is the molar mass of the protein?

chemistry
Calculate the value of the equilibrium constant, Kp , for the following reaction at 298.0 Kelvin. (Use the reaction free energy given below.) 2SO3 = 2SO2 + O2 in the gaseous state ΔG = 140.0 kJ/mol

chemistry
Calculate the value of the equilibrium constant, Kp , for the following reaction at 298.0 Kelvin. (Use the reaction free energy given below.) 2SO3 = 2SO2 + O2 in the gaseous state ΔG = 140.0 kJ/mol

Calc
how do i solve ( 3tan²(x - 1) ) / ( tan³(x) - 3tan(x) )

Physics
ahah yeah bobpursley seems like you had difficulty yourself

Physics
thank you

college
just answer it jeez

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