1) Georgia is jogging with a velocity of 4 m/s when she accelerates at 2 m/s 2 for 3 seconds. How fast is Georgia running now?
2) A bicyclist is traveling at +25 m/s when he begins to decelerate at -4 m/s 2 . How
fast is he traveling after 5 seconds?
3) A squirrel is 5.0 m away from you while moving at a constant velocity of 3 m/s
away from you. How far away is the squirrel after 5 seconds?
4) The Jamaican bobsled team hit the brakes on their sled so that it decelerates at a
uniform rate of 0.43m/s². How long does it take to stop if it travels 85m before coming to rest?

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?