physics (easy)

posted by .

Will a 7.25 kg ball with a diamter of 22 cm float in water? I know that the radius is 11 cm and that the density of water is 1000kg/m^3 and I got that it will float but it just doesn't sound right. Could anyone help please?

  • physics (easy) -

    Calculate the mass of a 11 cm radius sphere of water.

    (4/3) pi r^3 = 16,726 cm^3 = 1.672*10^-2 m^3

    Mass (if H2O) = 16.726 kg

    The ball is lighter than water and will float.

    You could have also just calculated the density of the actual ball, which is 7250 g/16,726 cm^3 = 0.433 g/cm^3. Water's density is 1.00 g/cm^3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics. Please help

    Considering the nature of a water wave , describe the motion of a fishing float on the surface of a lake when a wave passes beneath the float. Is it really correct to say that the float bobs straight "up and down"?
  2. physics

    Which of the following objects will float in a tub of mercury?
  3. science

    1) what is the mass of 10 cc of water? 2) why does a block of wood float on water?
  4. physics

    a cube of side L is made of a substance that is 1/4 as dense as water. WHen placed in a calm water bath the cube will a) float with 1/2 L abovethe surface b)sink to the bottom, c) float with 1/4 L above the surface d) float with 1/4 …
  5. Physics

    The mass of the float is 50.0 kh and it has a volume of 1.0 m^3.det ermine the density of the float and the tension on the rope. You may assume g=10N/kg. So I know that mfloat = 50.0kg weight of float = 50.0 x 10 = 500N Vfloat = 1.0 …
  6. chemistry

    Sodium metal adopts a body-centered cubic structure with a density of 0.97g/cm3. A. Use this information and Avogadro's number to estimate the atomic radius of sodium. B. If it didn't react so vigorously, sodium could float on water. …
  7. chemistry

    Sodium metal adopts a body-centered cubic structure with a density of 0.97g/cm3. A. Use this information and Avogadro's number to estimate the atomic radius of sodium. B. If it didn't react so vigorously, sodium could float on water. …
  8. Chemistry 101

    A spherical ball has a diameter of 1.00 inch and a mass of 2.00grams. Will the ball float or sink in water?
  9. Chemistry 101

    A spherical bass has a diameter of 1.00 inch and a mass of 2.00 grams. Will the ball float or sink water?
  10. Chemistry 101

    A spherical bass has a diameter of 1.00 inch and a mass of 2.00 grams. Will the ball float or sink water?

More Similar Questions