7. An object accelerates at 10 m/s2 for 3 seconds. If its speed after the end of the acceleration is 65 m/s, what is its speed before the acceleration?

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?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Find the mass by adding the numbers from the three sliders