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New exercises from Khan Academy 2020-02-13T23:33:11.382060
Actualizado: hace 2 horas 31 mins

### Identifying equal and opposite forces

Dom, 2019-11-24 21:09
Practice identifying the correct reaction to an action using Newton's third law.

### Newton's second law: Solving for force, mass, and acceleration

Dom, 2019-11-24 18:45
Practice applying Newton's second law to symbolically solve for mass, acceleration, and force magnitude.

### Net force and acceleration exercise

Dom, 2019-11-24 16:42
Practice using Newton's first law to make conclusions about an object's acceleration or the forces on the object.

### Magnetic field due to a current-carrying solenoid

Dom, 2019-11-24 14:23
Let's test our understanding of the magnetic field and field lines due to a current passing through a solenoid.

### Angle types

Vie, 2019-11-22 21:05
Determine if an angle is acute, right, or obtuse.  A protractor is provided.

### Name angles

Vie, 2019-11-22 20:55
Name angles by their vertex, endpoints, or labels.

Vie, 2019-11-22 20:52
Classify and compare rectangles, rhombuses, and squares.

### Electric motor: parts and functions

Vie, 2019-11-22 10:32
Let's practice some problems to better understand the parts of an electric motor and their functions.

### Electric motor: working

Vie, 2019-11-22 10:32
Let's test our understanding of the functioning of an electric motor.

### Fleming's left-hand rule

Vie, 2019-11-22 10:20
Let's practice some problems involving Fleming's left hand rule to find out the direction of the force on a current in a uniform magnetic field.

### Magnetic field around a straight current-carrying wire

Vie, 2019-11-22 09:07
Let's test our understanding of the magnetic field and field lines around a straight current-carrying conductor.

### Right-hand thumb rule

Vie, 2019-11-22 09:06
Let's test our understanding of the right-hand thumb rule, used to figure out the direction of the magnetic field around a current-carrying conductor.

### Force on a current in a magnetic field

Vie, 2019-11-22 09:05
Let's solve some problems to better understand the factors that affect the force on a current in a magnetic field.

### Magnetic field lines: direction

Vie, 2019-11-22 07:38
Let's test our understanding of the properties of magnetic field lines.

### Magnetic field lines: field strength

Vie, 2019-11-22 07:17
Let's practice problems to understand what the closeness of magnetic field lines at a point tells us about the strength of the magnetic field there.

### Magnetic field lines: special properties

Vie, 2019-11-22 07:11
Let's practice problems to understand two special properties of magnetic field lines that are essential to how magnetic fields behave.

### Add & subtract rational expressions

Vie, 2019-11-22 05:40
Example: Subtract and simplify (a-2)/(a+2) - (a-3)/(a²+4a+4).

### Monopolistic competition

Vie, 2019-11-22 02:02
Practice what you've learned about monopolistic competition in this exercise.

### Interpreting graphs of the production possibilities curve (PPC)

Vie, 2019-11-22 01:52
Practice what you have learned about the production possibilities curve (PPC) in this exercise.

### The money market: foundational concepts

Vie, 2019-11-22 01:13
Practice concepts related to the money market, liquidity preference theory, and nominal interest rate adjustment