A hunter is practicing hitting a target that is down range. If the arrow leaves the bow at a velocity of 30ms at an angle of 40° above the horizontal. a.
Find out how far down range the arrow goes.

b. What is the maximum altitude the arrow reaches?

Could someone . i have tried to solve myself but my calculation is off

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions