Two resistances of 100ohms and 0 ohms were connected in parallel. What is the overall resistance

What is one way that continental rifts are similar to mid-ocean ridges and what is one that they are different?

adell [148]

Explanation:

Continental rifts and mid-ocean ridges are both features of a divergent plate margin.

In both cases plates are moving away from one another. Therefore they are creating new land masses.

A continental drift like the east African rift valley is where a continent begins to pull apart or diverges.
A mid-ocean ridge is divergent margin in the ocean.

They are different in that, continental rift occurs within the continental plate that are on land.

But:

Mid-ocean ridges are in the oceanic crust in the ocean . They form the largest physiographic structure on the earth surface called the mid-ocean ridge.

learn more:

Descending lithosphere brainly.com/question/9582362

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3 0

3 years ago

Read 2 more answers

Imagine an alternate universe where all of the quantum number rules were identical to ours except m_{s} had three allowed values

marishachu [46]

Answer:

so in a given orbital there can be 3 electrons.

Explanation:

The Pauli exclusion principle states that all the quantum numbers of an electron cannot be equal, if the spatial part of the wave function is the same, the spin part of the wave function determines how many electrons fit in each orbital.

In the case of having two values, two electrons change. In the case of three allowed values, one electron fits for each value, so in a given orbital there can be 3 electrons.

5 0

3 years ago

Thermal energy is the average kinetic energy of particles of matter, whereas temperature is the total kinetic energy of particle

grigory [225]

That's false..

It's actually the other way around.

7 0

3 years ago

In which of these situations, is mechanical energy being conserved? (Neglect, air resistance, friction, and breaking) Check all

Amiraneli [1.4K]

1) Mechanical energy is conserved in all the situations mentioned

2) True

3) Potential energy

4) The potential energy is 490 J

5) The potential energy is 750,000 J

Explanation:

1)

The mechanical energy of an object is the sum of its potential energy (PE) and its kinetic energy (KE):

$E=PE+KE$

When there are no conservative forces acting on the object (i.e. air resistance of friction), the mechanical energy is always conserved, so it is constant:

$E=const.$

This means that there is a continuous conversion between potential energy and kinetic energy.

In all the examples mentioned here, there are no air resistance or friction acting on the system: therefore, mechanical energy is conserved in all cases.

2)

The potential energy of the object falling to the ground is given by

$PE=mgh$

where

m is the mass

g is the acceleration of gravity

h is the height of the object above the ground

While the kinetic energy is given by

$KE=\frac{1}{2}mv^2$

where

v is the speed of the object

As the object falls, its height h decreases, while the speed v increases: therefore, the potential energy decreases and it is converted into kinetinc energy, which increases.

3)

The energy possessed by an object due to its position is called potential energy. It can be of two types:

- Gravitational potential energy: it is the energy possessed by an object due to its position in a gravitational field. It is given by

$PE=mgh$

where m is the mass, g the acceleration due to gravity, h the height of the object

- Elastic potential energy: it is the energy stored in an elastic object which is compressed or stretched - it is given by

$PE=\frac{1}{2}kx^2$

where k is the spring constant and x the elongation of the object relative to its equilibrium position.

4)

The (gravitational) potential energy stored in the block is calculated as

$PE=mgh$

where:

m = 10 kg is the mass of the block

$g=9.8 m/s^2$ is the acceleration due to gravity on Earth's surface

h = 5 m is the height of the object above the ground

Substituting, we find the potential energy:

$PE=(10)(9.8)(5)=490 J$

5)

The potential energy of the elevator is given by

$PE=mgh$

In this case, we have

h = 500 m (height of the elevator)

W = 1500 N (weight of the elevator)

We also know that the weight is the product of mass and acceleration due to gravity:

$W=mg$

So we can rewrite the first equation as

$PE=Wh$

And substituting, we find

$PE=(1500)(500)=750,000 J$

Learn more about potential energy:

brainly.com/question/1198647

brainly.com/question/10770261

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5 0

3 years ago

Explain what it means to view a moving object from a frame of reference

GaryK [48]

When you look at an object in motion, the frame of reference is different depending on where you are when looking at this object.

For example, if you are in a train you can say that from your frame of reference the ground outside is moving compared to you and you are not moving or the train is not moving. From someone on the outside of the train, they can say that the train is moving compared to the ground and they are not moving.

Another example could be if you are driving in a car. You can say that the road is moving backwards compared to you and you are stationary. Someone standing on the sidewalk can say you are moving compared to the ground. You can also say that you are not moving since you are stationary in the car.

5 0

3 years ago