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kherson [118]
4 years ago
6

A ball is falling after rolling off a tall roof. The ball has

Physics
2 answers:
Rom4ik [11]4 years ago
8 0
C.
Because it’s falling it has acceleration in the y direction. If you have acceleration, you usually also have velocity, and since kinetic energy is KE= Mv^2 you know you have it. It also has potential energy because it has some height to it, and PE= Mgh.
Stella [2.4K]4 years ago
8 0

The ball has both kinetic and potential energy.

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Match the lithification processes.
butalik [34]

Explanation:

Recrystallization: contact pressure causing grains to "fuse" together

Cementation : precipitation of bonding agents between grains

Compaction : increase in density due to weight of overburden

Lithification is the process by which sediments are converted into sedimentary rocks. During this process, recrystallication, compaction and cementation of mineral grains occur.

The process starts with the compaction of sediments. The over burden weight of new sediments in the basin adds to the one originally deposited. This compresses the sediment. The volume of reduced and the density increases.

Recrystallization follows suit as the contact pressure of grains makes them fuse together. It is more like reworking of sediments. In this process, cementing materials can precipitate and cause sediments to be more fused together.

This is why most sediment are made up of clasts in a matrix of cementing materials.

learn more:

sedimentary rocks brainly.com/question/9131992

#learnwithBrainly

4 0
3 years ago
You are running to catch a train which is stationary on the tracks. The whistle is blowing, in preparation for the train’s depar
AlladinOne [14]

Answer:

You would hear a loud trumpet sound that can be heard from a large distance.

Explanation:

7 0
3 years ago
An atom contains 15 neutrons and has a mass number of 30. What is its atomic number? How did you determine the atomic number?
irinina [24]

Answer:

15

Explanation:

The mass number is defined as the total number of protons and neutrons. The atomic number is total number of protons. And since we have the mass number and number of neutrons, we can use simple subtraction (30 - 15) to find that the atomic number is 15.

8 0
4 years ago
Evidence that seismic waves transfer energy without transferring matter?
Sav [38]
Evidence that seismic waves transfer energy without transferring matter: Seismic waves do not transfer matter because the waves travel away from the faults because the movement in the crust occur along the faults as the seismic waves continue to travel away.
8 0
3 years ago
A point charge Q is placed at the center of a cube of side l. what is the flux through one face of the cube?
dimaraw [331]

Answer:

\phi=\dfrac{q}{6\epsilon_o}

Explanation:

A point charge Q is placed at the center of a cube of side l.

We need to find the flux through one face of the cube. Let the flux is \phi.

There are 6 faces in a cube.

According to Gauss's law, net flux is given by :

\phi=\dfrac{q}{\epsilon_0}

As there are 6 faces of a cube, flux through one surface is :

6\phi=\dfrac{q}{\epsilon_o}\\\\\phi=\dfrac{q}{6\epsilon_o}

So, the flux through one face of the cube is \dfrac{q}{6\epsilon_o}.

8 0
3 years ago
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