The diagram shows the sun (A) and planets (B - I) of our solar system. Use the diagram and passage below to answer the question. The planets of our solar system are moving in space. Each planet goes around the sun in an elliptical shaped path called an orbit. In addition, each planet spins around an imaginary line through its center called its axis. The Earth's axis is tilted at an angle of about 23.4°. Which sentence best describes planet rotation? Group of answer choices The planets of our solar system are moving in space. Each planet goes around the sun in an elliptical shaped path called an orbit. In addition, each planet spins around an imaginary line through its center called its axis. The Earth's axis is tilted at an angle of about 23.4°.

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)

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.