A 23 kg child is riding a 6.7 kg bike with a velocity of 4.4 m/s to the northwest. a) What is the total momentum of the child and the bike together?
b) What is the momentum of the child?
c) What is the momentum of the bike?

Blank liquids and gases exert a buoyant force on objects placed in them

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

Photons with the highest energy have the longest period