Aspool of mass m d 220 kg, inner and outer radii ⇢ d 1: 75 m and r d 2: 25 m, respectively, and radius of gyration kg d 1: 9 m, is being lowered down an incline with ✓ d 29ı. there is no slip between the spool and the cable as the spool moves down the incline. if the static and kinetic friction coefficients between the incline and the spool are s d 0: 4 and k d 0: 35, respectively, determine the acceleration of g, the angular acceleration of the spool, and the tension in the cable if the system is released from rest.

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.