a cross country runner jogs from a street corner to the gym , The runner follows a street north for 4km , turns right and jogs 11km east to arrive at the gym . what is the magnitude of the runners displacement

What produces a record of seismic waves? richter scale seismogram barometer seismograph

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?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form