You are shipwrecked on a deserted tropical island. you have some electrical devices that you could operate using a generator but you have no magnets. the earth's magnetic field at your location is horizontal and equal to 8.0×10−5t, and you decide to try to use this field for a generator by rotating a large circular coil of wire at a high rate. you need to produce ϵmax = 9.0v and estimate that you can rotate the coil at 30rpm by turning a crank handle. you also decide that to have an acceptable coil resistance, the maximum number of turns the coil can have is 2000.part a what area must the coil have? part b if the coil is circular, what is the maximum translational speed of a point on the coil as it rotates?

1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom

What is a costume plot? why is it important to a film or theater production?