Acyclist is coasting at 12 m/s when she starts down a 450-m-long slope that is 30 m high. the cyclist and her bicycle have a combined mass of 70 kg. a steady 12 n drag force due to air resistance acts on her as she coasts all the way to the bottom. what is her speed at the bottom of the slope?

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

Energy flows from the producer level to the level. is called

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius