Vežimėlis, riedėjęs horizontaliu paviršiumi 60 cm/s greičiu, susiduria su kitu vežimėliu, judančiu ta pačia kryptimi 180 cm/s greičiu. Po susidūrimo abu vežimėliai važiuoja ta pačia kryptimi vienodu 120 cm/s greičiu. Apskaičiuokite vežimėlių masių santykį.

If you mix chlorine lithium in nickel together which two elements would be the most reactive

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

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?