If a Lilliput in his sleeping position occupies an area of `5 cm^2` and on standing position occupies `2 cm^2 ` of area, then fmd the ratio of pressures exerted by him in béth the positions
Two stretched membranes of areas 2cm^(2) and 3cm^(2) are placed in a liquid at the same depth. The ratio of the pressures on them is:
Two stretched membranes of area 3 cm^2 and. 4 cm^2 are placed in a liquid at the same depth. The ratio of the pressure on them is :
The foot of an elephant has an area of 275cm^(2) . If the mass of the elephant is 2200 kg, find the pressure exerted by the on the ground. ( g=10ms^(-2) )
An elephant weighing 40,000 N stands on one foot of area 1000 cm^(2) whereas a girl weighing 400 N is standing on one 'stiletto heel of area 1 cm^2 (a) Which of the two, elephant or girl, exerts a (b) What pressure is exerted on the ground by the elephant standing (c) What pressure is exerted on the ground by the girl standing (d) Which of the two exerts larger pressure on the ground : elephant or girl? (e) What is the ratio of pressure exerted by the girl to the pressure exerted by the elephant ?
A boy weighing 60 kg f is wearing shoes with heel area of cross-section 20cm^2 while a girl weighing 45kg f is wearing shoes with heel of area of cross-section 1.5 cm^2 . Compare the pressures exerted on the ground by their heels when they stands on the heel of one foot.
By how much is the area of rectangle (in cm^(2) ) of sides 2 cm and 1.5 cm greater than the area of a square of side 1 cm ?
If the area of the circle is 314 cm^2 and area of the major segment is 214 cm^2 then what is the area of its minor segment ?
