POR FAVOR AYUDA ESTOY EN UN QUIZ
Un niño empuja a su hermana pequeña en un trineo. El trineo acelera de 0 a 3,2 m / s. Si la masa combinada de su hermana y el trineo es de 40.0 kg y se generaron 18 W de potencia, ¿cuánto tiempo empujó el niño el trineo?

A10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. they are then released so that the spring pushes the two carts apart. the 10.0 kg cart is moving at 4.5 m/s afterward. how fast is the 15kg cart moving? 3.0 m/s 2.0 m/s 4.5 m/s 5.0 m/s

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

Ababy stroller is a rest on top of a hill which is 10 m high. the stroller and baby have a mass of 20 kg. what is the potential energy of the baby and stroller?