A) the current theory of the structure of the earth, called plate tectonics, tells us that the continents are in constant motion. assume that the north american continent can be represented by a slab of rock 5900 km on a side and 26 km deep and that the rock has an average mass density of 2800 kg/m^3. the continent is moving at the rate of about 4 cm/year. what is the mass of the continent. answer in units of kg.
b) what is the kinetic energy of the continent? answer in units of kg.
c) a jogger (of mass 80 kg) has the same kinetic energy as that of the continent. what would his speed be? answer in units of m/s.
Answers: 2
Other questions on the subject: Physics
Physics, 22.06.2019 05:00, anime333
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
Physics, 22.06.2019 07:30, hdhdhd49jdhd
Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud
Answers: 2
Physics, 22.06.2019 08:00, cia196785920
If a balloon is taken outside on a very cold day, what will occur?
Answers: 1
Physics, 22.06.2019 16:30, JJlover1892
What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?
Answers: 2
You know the right answer?
A) the current theory of the structure of the earth, called plate tectonics, tells us that the conti...
Questions in other subjects:
Mathematics, 30.07.2019 07:10
Mathematics, 30.07.2019 07:10
Mathematics, 30.07.2019 07:10
