Volume of cube = 1.2^3 = 1.728 m^3
then divide by 2 because the cub is half in water so 1.728/2= 0.864 m^3
water displaced => m (mass) = V(volume) * p (density of water)
so
0.864 x 1000 = 864 kg
864 x 9.8 = 8467.2 N
so apparent weight of cube is 961 - 8467.2 = -7506.2 N
so...
i did that but then? i don't know ..thx for helping me kuruman
why it says bout volume of anchor. why it gives me the dimension of each side of the box? (1.2)
how do u use them:/
tension, forces .please help me:(
Homework Statement
A hollow but water-tight cubic box of wood, 1.2m on each side, weighs 961 N in air. It is placed in fresh water lake tied to an anchor made of solid iron (1m x 1m x 10 cm) with a weightless cord of such length that exactly half of the...
I got a question says "how much heat is requeired to change 3kg of ice at -9C to steam at atmospheric pressure?"
I must do step my step the energy of each step (energy needs to heat ice to 0,energy need to change ice to water, heat water at 100 and then make water to steam)
am going to find...