Use the following information and illustration for questions 24-26. The path of a sledder is shown below; upon descending the hill, the sledder ultimately glides up a
ramp to a final resting position (at D). Frictional forces can be assumed to be negligible. (Given: m =
30 kg; Height at A = 6 m, Speed at A = 14 m/s.) Fill in your answers on your scantron and only for the
questions asked on 7-9 (you do not need to fill in the entire chart).

h = 4 m at B
24. Kinetic Energy at Point B. Round to the nearest whole number.
25. Potential energy at Point B. Round to the nearest whole number.
26. Velocity at point B. Round to the tenth place (1 decimal place)

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)

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil

Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s