Question
A hollow closed cube of side 10 cm, each weighing 200
gm, is made. This cube is placed in water with a horizontal face. How many cm of its height sinks in water if the density of water is 1 gm per cm°?Solution
Weight of cube = Weight of Water displaced Weight of cube = 200 g Let cube sinks for d cm. Surface area of face = 10 x 10 = 100 cm² => Volume of water displaced = 100 x d cm³ Density of water is 1gm/cm³ Density = weight / Volume => Weight of water displaced = 100d x 1 = 100d g Equate both weights, => 100d = 200 => d = 2 cm Hence, 2 cm of cube height sinks in water.
From which heart chamber does blood enter the aorta in the human circulatory system?
Who is the father of Biology?
Which type of drainage pattern is characterized by streams that resemble branches of a tree?
Which cell produces cerebrospinal fluid in the human brain?
Whooping cough is also called as
First king to have the image of Buddha incrisbed on his coin?
Which of the following hormone used as the medication to facilitate childbirth?
Which of these is NOT an infectious disease?
India renewed its agreement with Pakistan in October 2024 to maintain access to which Sikh pilgrimage site?
What is the primary use of propolis, a resinous substance produced by honeybees?
Relevant for Exams:
