PLZ HELP rewarding 14 points Jessica and Taylor are playing in a seesaw. Taylor is suspended in the air and is unable to move her seat down. Explain why Taylor cannot swing back down.

Jessica is standing on her seat causing Taylor to be suspended in the air.

The force pushing down is less than the force pushing up on Taylor's seat.

The weight of Jessica is more than the weight of Taylor.

Jessica and Taylor are equal of weight.

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

Positrons are spontaneously emitted from the nuclei of