Recent content by h_k331

Thanks Astronuc. hk

In reply to my own post, I was reading over the solubility rules again and noticed that compounds containing sulfide are insoluble. I sopose I just need to put a small amount of each in water and see which one remains solid. hk

I have two bottles of chemicals. I know that one bottle is Copper (II) Sulfide, and the other is Copper (II) Sulfate Pentahydrate. One bottle contains blue crystals and the other bottle contains black crystals. Problem is, the bottles aren't labeled, so the question is how do I determine...

Thanks Janus. hk

I was hoping someone could check my work for me. Question: A satellite is in circular orbit 600 km above the Earth's surface, where the free-fall acceleration is 8.21 m/s^2. Take the radius of the Earth as 6400 km. Determine the speed of the satellite and the time required to complete one...

That answers my question, thank you much M.Hamilton. hk

And how about acceleration? hk

Time--Position--Velocity--Acceleration -(s)-----(m)-----(m/s)-----(m/s^2) 1.50___0.300____0.236______0.136 1.55___0.311____0.242______0.132 1.60___0.323____0.254______0.086 1.65___0.338____0.257_____-0.005 1.70___0.350____0.250_____-0.043 hk

I'll take a shot at it for you. I'm just learning this stuff too so I hope I don't misguide you. Position as a function of time can be described by xf = xi + vi*t + 0.5*a*t^2 where xf is final position, xi is initial position, vi is initial velocity, a is acceleration, and t is time. What...

You could use a mouse trap for the propulsion mechanism. hk

I don't know the make or model, I do know it uses sound waves for motion sensing. hk

I am doing another lab report on motion. For this lab we used a motion detector connected to a computer to collect and display data about an object in motion. The question that I am having trouble with is how does the computer calculate velocity and acceleration based on the position data...

Thanks Andrew. hk

I'm curious as to what kind of bird this is that flies at 177.2 km/h. hk

To be exact, the speed of light in a vacuum is actually 299,792.458 km/s. hk