TutorMe homepage

SIGN IN

Start Free Trial

Katrina L.

College Tutor

Tutor Satisfaction Guarantee

Physics (Newtonian Mechanics)

TutorMe

Question:

When finding the velocity of an object that is moving vertically and horizontally, why are the x- and y-components found independently?

Katrina L.

Answer:

Even though we interact in a 3-dimensional world, the actions in each dimension are independent from the actions of the others, but when an object is affected by those actions it reflects those actions at the same time - thus the reason why a ball will fly forward and down when thrown.

Geometry

TutorMe

Question:

Why do triangle angles always add up to 180 degrees?

Katrina L.

Answer:

In short, as one of the simplest polygons a triangle's angles cannot be any less than the degree of a straight line, also known as 180 degrees. (Note: this only applies to flat, 2 dimensional triangles)

Calculus

TutorMe

Question:

How many times do you derive an equation in order to locate local maximums and minimums? How do you determine if a point is a max or min?

Katrina L.

Answer:

1)Take the first derivative and set the equation to 0, them solve for the independent variable to determine max and min points, Method 1: Plug one point into the origianl to determine its y-value, To label the points, take a value greater than one of the points found and plug it into the original equation. Do the same with a value less than that same point. If both results are less than the y-value of the point, it is a max. If both points are greater than the y-value of the point, it is a min, it is neither if the results don't match Method 2: Take the second derivative and plug in those points to label each point as a max, min, or neither, A positive number will be a min, a negative a max, anything else would be neither.

Send a message explaining your

needs and Katrina will reply soon.

needs and Katrina will reply soon.

Contact Katrina

Ready now? Request a lesson.

Start Session

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 Session" 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.

Made in California

© 2019 TutorMe.com, Inc.