subject
Physics, 15.04.2021 05:00 sighgabbie

Read the following paragraph from the Introduction (paragraphs 1-4].
Volcanoes are openings where lava,
small rocks and steam erupt onto
the Earth's surface. The volcano that
erupted most recently is a shield
volcano. This means it is built out of
lava, or melted rock. Lava comes up
from beneath the Earth and out of a volcano. Then it flows on the
surface.
What does the author mean by "surface"?

A. The top layer
B. The area below
C. The middle part
D. The part deep within

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 23:00
Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm
Answers: 2
question
Physics, 22.06.2019 07:20
Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?
Answers: 3
question
Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
question
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
You know the right answer?
Read the following paragraph from the Introduction (paragraphs 1-4].
Volcanoes are openings w...
Questions
question
Mathematics, 18.03.2021 03:10
question
History, 18.03.2021 03:10
question
Mathematics, 18.03.2021 03:10
question
Mathematics, 18.03.2021 03:10
Questions on the website: 13722367