Hurry and answer i need the answer by 11pm

the smith family is travelling in their car at 50 km/h due east. mr. smith is using cruise control to maintain a constant speed. describe the net force acting on the smith car.

a) net force equals zero.
b) net forces are unbalanced.
c) net force is positive and to the east. my choice. is this the correct one?
d) there is no way to determine net force.

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

On average 8 bananas make up one pound. the price is four pounds for 5.00. you must buy 25 bananas.what is your cost?

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light