At first observation, the airplane is at distance from the station and at angle above the horizon. The airplane is tracked through an angular change in the vertical eastâwest plane; its distance is then. Find the (a) magnitude and (b) direction of the airplaneâs displacement during this period.n elevator without a ceiling is ascending with a constant speed of 10 m/s. A boy on the elevator shoots a ball directly upward, from a height of 2.0 m above the elevator floor, just as the elevator floor is 28 m above the ground. The initial speed of the ball with respect to the elevator is 20 m/s.
Two or three years ago, building a DIY sensory deprivation tank at your home was a no-brainer unless you had unlimited resources to spend 10-12K (at least) on a commercial float tank adapted for your home. With transportation and construction costs the sum could go up to 15-20K.
Homeowners can choose from a variety of R-values, thicknesses and price points, depending on their insulation needs. R-values range from 11 to 38. The cost for batt and roll insulation starts at $0.12 to $0.16 per square foot for a three-and-a-half-inch barrier that provides a value of R-11.The cost of a single roll of reflective insulation varies according to its R-value.he cost for batt and roll insulation starts at $0.12 to $0.16 per square foot for a three-and-a-half-inch barrier that provides a value of R-11.