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Gala2k [10]
3 years ago
11

Any collection of things that have some influence on one another can be thought of as a system. When we talk about a system, we

are also talking about all the parts that should be included, how those parts interact with one another, and to how the system as a whole relates to other systems. We think of Earth as both an open and a closed system: energy enters and leaves (open system) but matter does not (closed system). Matter flows between reservoirs or sinks along pathways or fluxes.
There are three types of reservoirs in the lithospheric cycle: igneous, metamorphic and sedimentary rocks. Various processes, such as burial and melting, volcanism, or erosion move this material from one reservoir to another. The major process that drives the rock cycle is plate tectonics, the movement of Earth's crustal plates that is driven by convection currents of the magma within the Earth itself.

Students are investigating the types of rocks found in various locations throughout California, the state where they live and attend school. What hypothesis might the students formulate to guide their research on rock formation, given that they live in California?
A) If volcanoes are the source of land masses in California, that most of the rock in the state should be igneous.
B) If California is the site of several plate boundaries, we would expect to see mostly metamorphic rock at the boundary sites.
C) If there is movement at plate boundaries and sediment is the result of erosion, then we would expect to find mostly sedimentary rock at plate boundaries.
D) Because there are mountainous regions in California and sedimentary rock is the result of erosion, we would expect to find mostly sedimentary roc
Physics
1 answer:
Katen [24]3 years ago
6 0

Answer:

B

Explanation:

Its B

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From the food they take in
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3 years ago
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A motor has a rotor (with armature) of moment of inertia ????m . The rotor is attached to a gear box of gear ratio G > 1. The
Inessa [10]

Answer:

hello your question is incomplete attached below is the complete question

answer : The moment of inertial felt by someone ( J ) is greater that the moment of inertia felt by the motor  i.e. J > Jm

Explanation:

Gear ratio G > 1

a) Determine the moment of inertia felt by the motor

moment of inertia felt by Motor = moment of Inertia at the armature

b) Determine the moment of inertial felt by someone who is rotating the mass by hand

moment of inertia felt by someone is = J

The moment of inertial felt by someone ( J ) is greater that the moment of inertia felt by the motor

attached below is a detailed solution

3 0
3 years ago
a stone is thrown by a person from the top of the building, which is 200m tall. at the same time, another stone is thrown with v
solniwko [45]

Answer:

The time after which the two stones meet is tₓ = 4 s

Explanation:

Given data,

The height of the building, h = 200 m

The velocity of the stone thrown from foot of the building, U = 50 m/s

Using the II equation of motion

                             S = ut + ½ gt²

Let tₓ be the time where the two stones  meet and x be the distance covered from the top of the building

The equation for the stone dropped from top of the building becomes

                            x = 0 + ½ gtₓ²

The equation for the stone thrown from the base becomes

                S - x = U tₓ - ½ gtₓ²  (∵ the motion of the stone is in opposite direction)

Adding these two equations,

                      x + (S - x) = U tₓ

                               S = U tₓ

                               200 = 50 tₓ

∴                                  tₓ = 4 s

Hence, the time after which the two stones meet is tₓ = 4 s   

6 0
3 years ago
6. A pitcher throws a ball toward home plate 18.39 meters away. If the ball is traveling at a constant 40.0 m/s, how long does i
Kruka [31]
18.39 I don’t know this
3 0
3 years ago
What is the frequency of blue light that has a wavelength of 446 nm?
Maslowich
When I went through with the math, the answer I came upon was: 
<span>6.67 X 10^14 </span>

<span>Here is how I did it: First of all we need to know the equation. </span>

<span>c=nu X lamda </span>
<span>(speed of light) = (frequency)(wavelength) </span>
<span>(3.0 X 10^8 m/s) = (frequency)(450nm) </span>

<span>We want the answer in meters so we need to convert 450nm to meters. </span>
<span>450nm= 4.5 X 10^ -7 m </span>
<span>(3.0 X 10^8 m/s) = (frequency)(4.5 X 10^ -7 m) </span>

<span>Divide the speed of light by the wavelength. </span>
<span>(3.0 X 10^8m/s) / (4.5 X 10^ -7m) =6.67 X 10^ 14 per second or s- </span>

<span>Answer: 6.67 X 10^14 s- hope this helps</span>
7 0
3 years ago
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