Consider this situation: A sledder is moving to the right across unpacked snow and skidding to a stop. of the forces
listed, identify which act upon the sledder.
Tap to select the forces that are present.
Normal
Gravity
Applied
Friction
Tension
Air Resistance
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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?

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Smallest intensity of a stimulus that you can detect 50 percent of the time is