A Nerf Gun fires a dart that has a mass of 0.005 kg straight up in the air. If the spring mechanism stores 1.3 J of energy, what is the maximum
height the dart could go, assuming all of the stored energy becomes
gravitational potential energy and there is no loss of energy to air
resistance?

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums