Which of the following statements are true? (there may be more than one correct choice.)

(a) the sunken lead displaces a volume of water equal to the lead's own volume.
(b) the floating lead displaces a volume of water equal to the lead's own volume.
(c) the sunken lead displaces a volume of water whose weight equals the lead's weight.
(d) the floating lead displaces a volume of water whose weight equals the lead's weight

option (A)

Explanation:

According to the Archimede's principle, when a body s immersed partly or wholly in a liquid, it experiences an upward force which is called buoyant force. The buoyant force is equal to the loss in the weight of body.

The weight of liquid displaces by the body is equal to the loss in weight of body.

Thus, option (a) is true.

earth's neighboring galaxy, the andromeda galaxy, is a distance of 2.54×107 light-years from earth. if the lifetime of a human is taken to be 70.0 years, a spaceship would need to achieve some minimum speed min to deliver a living human being to this galaxy.