euren petronsky

anyone here at the moment i need some help the homework is due today by 11 pm i have 2 h left

A 9.00 kg object starting from rest falls through a viscous medium and experiences a resistive force vector R = -b vector v , where vector v is the velocity of the object. The object reaches one half its terminal speed in 5.24 s. (a) Determine the termina...

A 10.00 kg object starting from rest falls through a viscous medium and experiences a resistive force given by vector R = −bvector v , where vector v is the velocity of the object. The object reaches one half its terminal speed in 5.24 s. (a) Determine th...

(a) Estimate the terminal speed of a wooden sphere (density 0.790 g/cm3) falling through air, if its radius is 7.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.) ??m/s (b) From what height would a freely falling object reach th...

A small container of water is placed on a carousel inside a microwave oven, at a radius of 13.5 cm from the center. The turntable rotates steadily, turning through one revolution each 6.70 s. What angle does the water surface make with the horizontal? ???...

A child lying on her back experiences 58.0 N tension in the muscles on both sides of her neck when she raises her head to look past her toes. Later, sliding feet first down a water slide at terminal speed 5.65 m/s and riding high on the outside wall of a...

A 39.0-kg child swings in a swing supported by two chains, each 3.04 m long. The tension in each chain at the lowest point is 348 N. (a) Find the child's speed at the lowest point. ?? m/s (b) Find the force exerted by the seat on the child at the lowest p...

A skydiver of mass 75.0 kg jumps from a slow-moving aircraft and reaches a terminal speed of 51.7 m/s. (a) What is her acceleration when her speed is 30.0 m/s? magnitude ???m/s2 direction downward (b) What is the drag force on the skydiver when her speed...

i have several attempts so any answer will help

A train slows down as it rounds a sharp horizontal turn, going from 92.0 km/h to 40.0 km/h in the 16.0 s that it takes to round the bend. The radius of the curve is 120 m. Compute the acceleration at the moment the train speed reaches 40.0 km/h. Assume th...

there is no need for an explanation on the subject the answer will do the work. just post the beginning of the question with the answers Thanks all for you help i really appreciate it

A 39.0-kg child swings in a swing supported by two chains, each 3.04 m long. The tension in each chain at the lowest point is 348 N. (a) Find the child's speed at the lowest point. 4.9 m/s (b) Find the force exerted by the seat on the child at the lowest...