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Vera_Pavlovna [14]
3 years ago
11

Which material rises from cracks in oceanic crust?

Physics
2 answers:
disa [49]3 years ago
7 0

Answer:

trenchs and magma

Explanation:

klasskru [66]3 years ago
4 0

Answer: Ridges form along cracks (divergent boundaries) in the oceanic crust (Molten rock (magma) rises through these cracks and pushes to both sides. When it cools, it forms new oceanic crust. The old crust is pushed away and new crust takes over. This is called Sea-Floor Spreading.

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A constant torque of 26.6 N · m is applied to a grindstone for which the moment of inertia is 0.162 kg · m2 . Find the angular s
ozzi

Answer:

156.1 rad/s = 24.8 rev/s

Explanation:

Torque = Momentum of inertial × radial acceleration = Iα

τ = 26.6 N.m

I = 0.162 kg.m²

26.6 = 0.162 × α

α = 164.2 rad/s²

Using equations of motion,

θ = 11.8 rev = 11.8 × 2π = 74.2 rad

w₀ = 0 rad/s (since the grindstone starts from rest)

w = ?

α = 164.2 rad/s²

w² = w₀² + 2(α)(θ)

w² = 0² + (2×164.2)(74.2)

w = 156.1 rad/s = 24.8 rev/s

Hope this Helps!!!

7 0
4 years ago
Read 2 more answers
A certain gas is compressed adiabatically. The amount of work done on the gas is 800 J. What is the change in the internal (ther
Black_prince [1.1K]

Answer:

800J

Explanation:

Using the formula for change in the internal energy of a system

∆U = Q - W

Q = heat added to the system

W =workdone by system.

We know the process is an adiabatic one then, there no addition/ removal of heat, then Q= 0

(∆U = -W )

Then substitute for W, we have

∆U = -[-800]

∆U= 800J

∆U = 800J

4 0
3 years ago
A car leaves a garage at 10 mph. it speeds up to 20 miles per hour in the city and eventually increases to 50 miles per hour in
LekaFEV [45]

Average speed = (total distance covered) / (time to cover the distance)

= (50 miles) / (1.5 hours)

= (50/1.5) miles/hours

= (33 and 1/3) mph .

We don't care about all that other "data" given earlier in the question.
We only need to know the total distance covered and the time it took
to cover the distance.
4 0
3 years ago
If the temperature increases in a sample of gas at constant volume, then its. . a. volume increases. b. pressure decreases. c. p
kicyunya [14]
<span>If the temperature increases in a sample of gas at constant volume, then its pressure increases. The increase in temperature makes the molecule hit the walls of the container faster. The correct option among all the options that are given in the question is the third option or option "c". I hope the answer helps you.</span>
3 0
3 years ago
Read 2 more answers
state position nature and size of an image when an object placed at an distance equal to its focal length of rear view in vehicl
maksim [4K]

Answer:

The position nature and size of an image when an object placed at a distance equal to its focal length of rear view mirrors in vehicle will be

1) Position: Behind the mirror

2) Nature: Virtual

3) Size: Smaller than the object

Explanation:

Due to the nature and use of rear view mirrors, which are meant to enable the front facing driver visualize a wide area of the back portion of the vehicle, such that the images of the object will always remain smaller than the object, require a convex image

The image size, location, nature and orientation of an object placed in front of a convex mirror is diminished, behind the mirror of the upright, virtual, and upright

Therefore, the position nature and size of an image when an object placed at a distance equal to its focal length of rear view mirrors in vehicle will be

Position: Behind the mirror

Nature: Virtual

Size: Smaller than the object.

5 0
3 years ago
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