A rock is suspended from a scale reads 20.0 N. A beaker of water (having a density of 1000 kg/m3 ) is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock?
A) 2.50 × 103 kg/m3
B) 3.00 × 103 kg/m3
C) 1.60 × 103 kg/m3
D) 2.67 × 103 kg/m3
E) 2.33 × 103 kg/m3
D
You might also like to view...
The ________-type seismic waves can travel through liquids and solids. The ________-type seismic waves can travel through solids only.
A. P; S B. S; S C. S; P D. P; P
A particle that interacts via the strong force is a(n)
a. lepton. b. baryon. c. meson. d. intermediate (or gauge) boson. e. hadron.
Hadrons are divided into two subgroups called
A) baryons and leptons. B) leptons and mesons. C) mesons and baryons. D) nucleons and gauge bosons. E) mesons and gauge bosons.
The rms speed of a certain sample of carbon dioxide molecules, with a molecular weight of 44 g/mole, is 396 m/s. What is the rms speed of water molecules, with a molecular weight of 18 g/mol, at the same temperature?
A) 253 m/s B) 387 m/s C) 421 m/s D) 506 m/s E) 619 m/s