The volume of a sphere is:
V = 4πr3/3 and the density is approx. 0,4 g/cm3.
it is a baseball or a tennisball.
2.67 to 2.77 grams is acceptable
DENSITY : density is the ratio of mass and volume of the substance density=mass/volume RELATIVE DENSITY : It is the ratio of density of a substance to the density of water
relative density is related to the density of water. i.e. a relative density of 19.3 means that it has a density 19.3 times the density of water. The density of water is 1g/ml therefore the density of gold is 19.3g/ml
An object will float if it has less density than the density of the liquid.An object will float if it has less density than the density of the liquid.An object will float if it has less density than the density of the liquid.An object will float if it has less density than the density of the liquid.
Tennisball (factoryreject)
it is a baseball or a tennisball.
Presumably, the guy who invented tennis.
On average, 2 pounds.
there is a rubber lining, but it is full of air.
tennisball toast
2.67 to 2.77 grams is acceptable
Use a flashlight, a tennisball and a golfball. Put them in line, with the flashlight (turned on obviously) for the sun, the tennisball for the earth and the golfball (behind the tennisball, relative to the flashlight) for the moon. Turn off the room light(s). Obviously the Earth blocks the light from the sun so that the moon is dark.
The picture is called "tennisball."
Do you mean floats? Tennisball, football, basketball, pool toys....
Playdough costs $5 for a blob the size of a tennisball
Raquetball