Advertisements
Advertisements
प्रश्न
Is pressure a vector quantity?
उत्तर
Pressure is a scalar quantity.
APPEARS IN
संबंधित प्रश्न
In what direction does the buoyant force on an object immersed in a liquid act?
Relative density of a substance is expressed in g cm-3.
Which of the following will sink or float on water? (Density of water = 1 g Cm-3) body B having density 2520 kg m-3
The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Ans the following:
Will a piece of iron float or sink in water?
State whether thrust is a scalar or vector?
Explain the following statement:
Sleepers are laid below the rails.
Why is a force needed to keep a block of wood inside water?
Complete the following sentence :
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if _____________ .
The S.I. unit of upthrust is :
The mass of a block made of certain material is 13.5 kg and its volume is 15 × 10-3 m3.
(a) Calculate upthrust on the block if it is held fully immersed in water.
(b) Will the block float or sink in water when released? Give a reason for your answer.
(c) What will be the upthrust on block while floating?
Take density of water = 1000 kg m-3.
