Recent content by Notion

Ooh I get it! I found the volume of the rock to be .001 and I plugged in that value into the B.F equation for the unknown liquid then I set that equal to the weight of the rock - the tension and found the density. Thank you very much!

That would be 35.7-25.9=9.8?

Rock in water/unknown fluid: Tension & buoyancy pointing up, of force gravity pointing down. ∑forces : Tension + B.F = mg

Sorry I meant to put 19.6 instead of 35.7. So the equation should actually read: ρliquid * gravity * Vrock = 19.6

I don't see how that helps me though. If I try using that info I come up with the equation: ρliquid * gravity * Vrock = 35.7 Still have 2 unknowns...

Homework Statement A rock is suspended by a light string. When the rock is in air, the tension in the string is 35.7N . When the rock is totally immersed in water, the tension is 25.9N . When the rock is totally immersed in an unknown liquid, the tension is 19.6N . Homework Equations Density =...

Homework Statement The upper edge of a gate in a dam runs along the water surface. The gate is 2.00 m high and 4.00 m wide and is hinged along a horizontal line through its center (Figure 1) Calculate the torque about the hinge arising from the force due to the water. (Hint: Calculate the...

We already have acceleration though? But on the right hand block would FofBlck1= Ftotal - FofBlock2 ? And how do I find T2?

What do you mean by consider it?

Hey guys I"m new to the forum so I just wanted to say what's up? You'll be seeing me a lot more often btw. :] Homework Statement Rachel is pulling 2 blocks across a horizontal friction less surface with an acceleration of 1.5m/s/s. The mass of Block 1 is 4kg and Block 2 is 2kg. 1) What is...