I RLLY NEED HEL : A rusty pulley is used to lift a 2450 N motorcycle onto a transport truck. What is the efficiency of the pulley if 3500 N is used to lift the motorcycle 1.5 m onto the truck?

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

i don’t know what the answer is i wish i

continuous conducting path for current, power supply

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.