A blob of material in outer space moves at 3 m/s when it collides and sticks to a half-as-massive blob initially at rest. Compared with the initial kinetic energy of the 3-m/s blob, the kinetic energy of the coupled blobs is

A) one-third.
B) two-thirds.
C) three-quarters.
D) not enough information


Answer: B) two-thirds.

Physics & Space Science

You might also like to view...

________ is the concept that the universe looks the same in all directions

Fill in the blank(s) with correct word

Physics & Space Science

All stars have roughly the same luminosity after the helium flash

Indicate whether the statement is true or false

Physics & Space Science

The average speed of a horse that gallops 10 kilometers in 30 minutes is

A) 15 km/h. B) 20 km/h. C) 30 km/h. D) 40 km/h.

Physics & Space Science

The ratio of the density of a material to the density of water is

a. the mass density. b. the weight density. c. the specific gravity. d. the buoyant force. e. none of the above.

Physics & Space Science