an object is moving to the right at a constant veloxity. what will happen if a force of 20 N starts acting on it in the opposite direction

Explanation:

The objects velocity will decrease because the force is opposing its motion

your answers are a,b,,e and f

i hope this

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.