A child throws a toy a hits another child in the face with a force of 10n. The force is applied over a distance of 0.04m. What amount of work does the child do on the second child’s face?

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?

The metric unit of electrical power is the watt volt ampere ohm

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?