### Projectile Motion Practice & Solutions

Solve the following questions using what you know about projectile motion. A roadrunner runs directly off a cliff with an initial velocity of 3.5 m/s. What are the components of this velocity? Vx = 3.5 m/s                            Vy = 0 m/s What will be the horizontal velocity 2 seconds after the bird leaves the cliff? 3.5…

### Projectile Motion: Practice Problems & Solutions

An object is projected horizontally at 8.0 m/s from the top of a 122.5 m cliff. How far from the base of the cliff will the object strike the ground? An arrow is shot at 30.0° angle with the horizontal. It has a velocity of 49 m/s. a) How high will it go? b) What…

### Superconductivity: Theory & Uses

Conductivity is the ability of a substance to carry electricity. Some substances like copper, aluminum, silver and gold do it very well. They are called conductors. Others conduct electricity partially and they are called semi-conductors. The concept of electric transmission is very simple to understand. The wire that conducts the electric current is made of…