The current theory of the srtucture of the Earth, called pate tectonics , tells us that the continents are in constant motion. Assume that the North American continent can be reoresented by a slab of rock 5450 km on a side and 36 km deep and that the rock has an average mass density of 2790 kg/m^3. The continent in moving at the rate of about 3.2 cm/year. Part 1) What is the mass of the continent? Answer in untis of kg. Part 2) What is the kenetic energy of the continent? Answer in units of J. Part 3) A jogger (of a mass 79 kg) has the same kenetic energy as that of the continent. What would hos speed be? Answer in units of m/s.
Answers: 2
Physics, 21.06.2019 15:30
Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?
Answers: 2
Physics, 22.06.2019 01:20
Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.
Answers: 3
Physics, 22.06.2019 09:00
One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form
Answers: 1
Physics, 22.06.2019 11:00
Which sound characteristic is not affected by the relative motion of an object
Answers: 2
The current theory of the srtucture of the Earth, called pate tectonics , tells us that the continen...
Mathematics, 02.12.2020 18:30
Chemistry, 02.12.2020 18:30
Chemistry, 02.12.2020 18:30
Chemistry, 02.12.2020 18:30
Biology, 02.12.2020 18:30
Social Studies, 02.12.2020 18:30
English, 02.12.2020 18:30
English, 02.12.2020 18:30