Aboy uses a slingshot to launch a pebble straight up into the air. the pebble reaches a height of 37.0 m above the launch point 2.3 seconds later. assume air resistance is negligible (a) what was the pebble's initial speed (just after leaving the slingshot)? m/s (b) how much time did it take for the pebble to first reach a height of 18.5 m above its launch point? s

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?