# Physics

A large rock weighing 164N is suspended from a 3 meter wire. The density of the rock is rho_rock = 3200 kg/m^3, and the wire mass is negligible. The upper end of the wire is fixed; in air the frequency is 40Hz while in liquid the frequency would be 25Hz. Find the density of the liquid.

-----

The rock has mass 16.7kg, and I know that v = lambda*f but I don't know what to do from here

## Similar Questions

1. ### physics

A large rock that weighs 164.0 N is suspended from the lower end of a thin wire that is 3.00 m long. The density of the rock is 3200 kg/m^3. The mass of the wire is small enough that its effect on the tension in the wire can be
2. ### Physics

A large rock that weighs 164.0 N is suspended from the lower end of a thin wire that is 3.00 m long. The density of the rock is 3200 kg/m3. The mass of the wire is small enough that its effect on the tension in the wire can be
3. ### physics

A horizontal wire carries a large current. A second wire carrying a current in the same direction is suspended below it.Can the current in the upper wire hold the lower wire in suspension against gravity?
4. ### physics

A horizontal wire carries a large current. A second wire carrying a current in the same direction is suspended below it.Can the current in the upper wire hold the lower wire in suspension against gravity?
5. ### vectors

A steel wire 40 m long is suspended between two fixed points 20 m apart. A force of 375 N pulls the wire down at a point 15 m from one end of the wire. State the tension in each part of the wire. Texbook answer: 375N, 0N
6. ### physics help 4

An astronaut on a small planet wishes to measure the local value of g by timing pulses traveling down a wire which has a large mass suspended from it. Assume that the wire has a mass of 4.10 g and a length of 1.60 m and that a
7. ### physics

A box is suspended by a steel wire via a frictionless pulley The wire has a mass per length of µ = 24.5 × 10 − 3 kg/m. The box is so heavy and the wire so thin that the mass of the wire does not influence the wire tension.
8. ### physics

Consider two copper wires with the same cross-sectional area. Wire A is twice as long as wire B. How do the resistivities and resistances of the two wires compare? CHECK ALL THAT APPLY Wire A and wire B have the same resistance.
9. ### College Physics

One end of a 14 m long wire having a total mass of .8000 kg is fastened to a fixed support in the ceiling, and a 7.50 kg object is hung from the other end. If the wire is struck a transverse blow at one end, how much time does the
10. ### Physics

A horizontal wire is held taut by a mass M hanging from its end over a pulley. A harmonic wave of wavelength is produced on the wire by a 52 Hertz vibration. If the mass of the density of the wire is 8.0 x 10^-3 kg/m, what is M?

More Similar Questions