Particle accelerators, such as the large hadron collider, use magnetic fields to steer charged particles around a ring consider a proton ring with 36 identical bending magnets connected by straight segments. the protons move along a 1.0-m-long circular arc as they pass through each magnet. part a what magnetic field strength is needed in each magnet to steer protons around the ring with a speed of 2.0 x 10 m/s? assume that the field is uniform inside the magnet, zero outside. express your answer with the appropriate units

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?