2. A block of wood of volume 80 cm and density 0.5g/cm3 floats in
water. What is the volume immersed in the water if d = 1 g/cm ?
3... .Pomilind ofdoneitsi
water

Volume = 40 cm³

Explanation:

Density = Mass/ Volume(1)

If Density = 0.5 g/cm³

and Volume = 80 cm³

Substituting these values into equation (1) to get the mass

0.5 = Mass/80

Mass = 0.5 * 80

Mass = 40 g

Now if density = 1 g/cm³

The mass of the wood remains constant, therefore, Mass = 40 g

Again to get the volume put the values for mass and volume into equation (1)

1 = 40/volume

Volume = 40/1

Volume = 40 cm³

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )