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# Physics Help and Reviews

Here you can find study materials for physics help. Browse the links below to find the area of physics you're looking for help with. Each study guide comes complete with explanations and practice problems to help you learn physics.

### Study Guides

showing 1 - 10 of 160
• 1.

#### Optics and Telescopes Help

Basic Optics Until a few hundred years ago, the only instrument available for astronomical observation was the human eye. This changed in the 1600s when several experimenters, including such notables as Galileo Galilei and Isaac Newton, combined lenses and ...

Source: McGraw-Hill Professional
• 2.

#### Hyperspace and Warped Space Help

Introduction to Hyperspace and Warped Space Some of the concepts in this chapter are among the most esoteric in all of mathematics, with far-reaching applications. Hyperspace (space of more than three dimensions) and warped ...

Source: McGraw-Hill Professional
• 3.

#### Hyper Objects Help

Introduction to Hyper Objects Now that we’re no longer bound to 3D space, let’s put our newly empowered imaginations to work. What are 4D objects like? How about five dimensions (5D) and beyond? Time As ...

Source: McGraw-Hill Professional
• 4.

#### Beyond Four Dimensions Help

Introduction to The Fourth Dimension and Beyond There is no limit to the number of dimensions that can be defined using the Cartesian scheme. There can be any positive whole number of dimensions. Time can be (but does not have to be) one of ...

Source: McGraw-Hill Professional
• 5.

#### Parallel Principle Revisited Help

Introduction to Geometry Postulates Conventional geometry is based on five axioms, also called postulates , that were first stated by a Greek mathematician named Euclid who lived in the 3rd century Everything we have done in ...

Source: McGraw-Hill Professional
• 6.

#### Curved Space Help

Introduction to Curved Space The observable universe seems, upon casual observation, to be Euclidean. If you use lasers to “construct” polygons and then measure their interior angles with precision lab equipment, you’ll find ...

Source: McGraw-Hill Professional
• 7.

#### Hyperspace And Warped Space Practice Test

Refer to the following links, if necessary: Hyperspace and Warped Space Help

Source: McGraw-Hill Professional
• 8.

#### Equations and Formulas for Physics Help

Introduction An equation is a mathematical expression containing two parts, one on the left-hand side of an equals sign (=) and the other on the right-hand side. A formula is an equation used for the purpose of deriving a ...

Source: McGraw-Hill Professional
• 9.

#### One-Variable First-Order Equations for Physics Help

Introduction In algebra, it is customary to classify equations according to the highest exponent, that is, the highest power to which the variables are raised. A one-variable first-order equation , also called a first-order ...

Source: McGraw-Hill Professional
• 10.

#### One-Variable Second-Order Equations for Physics Help

Introduction A one-variable second-order equation , also called a second-order equation in one variable or, more often, a quadratic equation , can be written in the following standard form:

Source: McGraw-Hill Professional
• 1

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