subject
Physics, 05.10.2019 20:00 bankskry

Which statements describe oceanic crust? select the two correct answers. a. it is between 25 and 70 km thick. b. its age ranges from very young to more than 4 billion years old. c. it is formed at zones of volcanic activity on the ocean floor. d. it contains silicate minerals high in iron and magnesium. e. it is made of all types of rocks.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 16:30
Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same
Answers: 1
question
Physics, 23.06.2019 03:30
Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.
Answers: 1
question
Physics, 23.06.2019 03:30
Geologists get to play with chemistry, physics, and history! and what a history you will meet as youwork your way through the course. starting at the beginning, the textbook provides the scientifically acceptedstart of the and promises that you'll get to explore some of the evidence for that scientific view, later inthe semester. meanwhile, which is more nearly correct of the scientifically accepted view? a) the earth formed when the big bang caused older materials to fall together, about 14 billion years ago.b) the earth formed from the falling together of older materials, about 4.6 billion years ago.c) the earth formed in the big bang, about 6000 years ago.d) the earth is eternal, having been here forever and promising to be here forever.e) the earth was assembled by gigantic space beavers, which gnawed down the primordial tree of life andpiled its branches together to form the planet.
Answers: 3
question
Physics, 23.06.2019 05:30
Oxygen gas enters well-insulated diffuser at 25 lbf/in.2, 420r, with a velocity of 860 ft/s through a flow area of 1.6 in.^2. at the exit, the flow area is 12 times the inlet area, and the velocity is 19 ft/s. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the oxygen and steady-state operation of the diffuser, determine the following: (a) the exit temperature, in r(b) the exit pressure, in lbf/in.^2 (c) the mass flow rate, in lb/s
Answers: 3
You know the right answer?
Which statements describe oceanic crust? select the two correct answers. a. it is between 25 and 70...
Questions
question
Mathematics, 10.09.2019 06:20
question
Computers and Technology, 10.09.2019 06:20
question
Mathematics, 10.09.2019 06:20
Questions on the website: 13722363