Mary Rife, of Texas, set a women’s world speed record for sailing. In 1977, her vessel, Proud Mary, reached a speed of 3.17 x 102 km/h. Suppose it takes 8.0 s for the boat to decelerate from 3.17 x 102 km/h to 2.00 x 102 km/h. a) What is the boat’s acceleration? b) What distance would the boat travel during this time?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Steelhead trout migrate up stream to spawn.occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b.leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?

Could we see a galaxy that is 20 billion light-years away?