Hi, i need with 2 science 20 points and

1. why are the fields of science and mathematics so interdependent?

select all that apply.

scientists need to be able to illustrate scientific laws and formulas.
scientists need to be able to take careful measurements.
scientists cannot rely so heavily on calculators and computers.
scientists need to be able to make precise measurements.

2. which of the following questions can use science as a method of inquiry?

is cloning appropriate?
how can we protect crops from drought?
why is jazz a great type of music?
did dinosaurs exist?

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.