Help!! A force changes the velocity of a body from 10m/s to 20m/s in 5 second. if the body has s mass of 5kg, what is the work done by the force in 4 second and the work done during the fourth second?

The functioning of an electron transport chain is analogous to a) a slinky toy going down a flight of stairs. b) a canoe going over a waterfall. c) a person climbing a flight of stairs one step at a time. d) a person leaping from the top to the bottom of a flight of stairs in one jump.

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s. what is the wavelength?