Enable contrast version

Tutor profile: Abdelrahman Samir A.

Inactive
Abdelrahman Samir A.
Senior Geophysicist for 11 Years; Expert at Physics, Geology & Math
Tutor Satisfaction Guarantee

Questions

Subject: Geology

TutorMe
Question:

Why is total mass of Earth is almost constant over time?

Inactive
Abdelrahman Samir A.
Answer:

That's primarily due to a well know process called Plate Tectonics. Think of it as an onion layer theory of different densities. So the Earth is composed of different layers of different density, and the uppermost layer "Crust" is floating over the underlying viscous layer "Mantle" and that caused those plates in the crust level to compress together and destruct and melting to the lower mantle layer. Now on the other side of those colliding plates a separating space is produced causing the magma to rise up in between building new crust. And that's why the total mass is almost constant almost over the last 5 billion years.

Subject: Arabic

TutorMe
Question:

How many vowels in the Arabic language?

Inactive
Abdelrahman Samir A.
Answer:

Basically they are 3 vowels: A as in apple, O as in Omicron, E as in Elephant but those 3 vowels can be extended to be like Aa, Oo and Ee depending on the context. Vowels in Arabic can be used as well for stressing some kind of intonation, by adding them to different litters.

Subject: Earth Science

TutorMe
Question:

What is seismic waves?

Inactive
Abdelrahman Samir A.
Answer:

Seismic waves is basically mechanical waves so it needs media to propagates within. So, for example; since air is the media of propagation of sound waves (another kind of mechanical waves), the underlying rocks is the media of propagation of sound waves. Seismic waves can occurs naturally in the case of earthquakes and we induce it to the subsurface it can help us understand the image of the subsurface and that's called exploration seismology.

Contact tutor

Send a message explaining your
needs and Abdelrahman Samir will reply soon.
Contact Abdelrahman Samir

Request lesson

Ready now? Request a lesson.
Start Lesson

FAQs

What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Lesson" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.