Physics, 14.12.2020 20:10 mcmccann4317
The current theory of the structure of the Earth, called tectonic plates, tells us that the continents are in constant motion. Assume that the North American continent can be represented by a slab of rock 4400 km on a side and 35 km deep and that the rock has an average mass density of 2680 kg/m^3. the continent is moving at the rate of about 3 cm/year.
part 1: what is the mass of the continent? answer in units of kg
part 2: what is the kinetic energy of the continent? answer in units of J
part 3: a jogger (of mass 69 kg) has the same kinetic energy as that of the continent, what would his speed be? answer in units of m/s
Answers: 3
Physics, 22.06.2019 10:10
Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv.a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?
Answers: 2
Physics, 22.06.2019 11:50
An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field
Answers: 3
Physics, 22.06.2019 13:00
The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.
Answers: 3
Physics, 22.06.2019 13:50
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
The current theory of the structure of the Earth, called tectonic plates, tells us that the continen...
Health, 22.02.2021 19:30
History, 22.02.2021 19:30
Mathematics, 22.02.2021 19:30
Mathematics, 22.02.2021 19:30
History, 22.02.2021 19:30
Chemistry, 22.02.2021 19:30
Biology, 22.02.2021 19:30
Mathematics, 22.02.2021 19:30
Mathematics, 22.02.2021 19:30
Mathematics, 22.02.2021 19:30
Mathematics, 22.02.2021 19:30