A 4.7-kg solid sphere, made of metal whose density is 4000 kg/ , hangs by a light cord. When the sphere is immersed in water, what is the tension force the cord exerts on the sphere? The density of water is 1000 kg/m3.
A) 35 N
B) 40 N
C) 46 N
D) 52 N
E) 58 N
Question 2
A 200-kg flat-bottomed boat floats in fresh water, which has a density of 1000 kg/m3. If the base of the boat is 1.42 m wide and 4.53 m long, to what depth is the bottom of the boat submerged when it carries three passengers whose total mass is
A) 7.10 cm
B) 7.53 cm
C) 7.95 cm
D) 8.52 cm
Light rays coming from an object to the retina.
Risks of infectious disease increase in (a) high-density agricultural populations compared to (b) lo
(A) In hyperopia, light rays focus behind the retina, making it difficult to focus on objects at ...
Solid foods like fortified infant rice cereal and oatmeal
Testing the corneal light reflex
1.6 Organisms are made up of cells, each of which contains an identical set of genes.