Scientists have done experiments to show that there has been a rapid increase in global temperatures over the years. Based on these experiments, which of these tables best shows the atmospheric carbon dioxide level from 1600 to 2000? (2 points) Group of answer choices

Year 1600 1700 1800 1900 2000
Carbon dioxide level (in parts per million) 284 328 110 296 190

Year 1600 1700 1800 1900 2000
Carbon dioxide level (in parts per million) 110 190 284 296 328

Year 1600 1700 1800 1900 2000
Carbon dioxide level (in parts per million) 296 190 328 110 284

Year 1600 1700 1800 1900 2000
Carbon dioxide level (in parts per million) 328 296 284 190 110

Aroll in a paper machine is powered by a separately excited dc machine. operating point 1 (under load): the roll typically operates at 764 rpm and must provide 301 nm of torque to oppose the load of the paper. the armature voltage is 230v for this operating point operating point 2 (no load): when the load is removed the speed of the roll increases to 900 rpm (the field characteristics are unchanged) la ea dev m (a) calculate the maximum torque (units of nm) that the motor can supply with this applied voltage (b) calculate the value of the armature resistance, ra (in ohms) (c) at operating point 1 (loaded condition), the field current, i, and the total input power (armature field), are measured to be to be 10 a and 28,600 w respectively. use this information to calculate the value of the field resistance, rf (in ohms). (d) (d) at operating point 1 (loaded condition), calculate the motor efficiency. express your answer as a percent to at least 2 significant digits. (d) if the field voltage is reduced by 1/2, calculate the new stall torque (in nm) of the motor (f). if the field voltage is reduced by 1/2, calculate the new no-load speed (in rad/sec)

What are similarities and differences between refraction, reflection, diffraction and absorption?

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?