An older camera has a lens with a focal length of 60mm and uses 34-mm-wide film to record its images. using this camera, a photographer takes a picture of the golden gate bridge that completely spans the width of the film. now he wants to take a picture of the bridge using his digital camera with its 14-mm-wide ccd detector. what focal length should this camera's lens have for the image of the bridge to cover the entire detector?

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices