Jessica stretches her arms out 0.8 m from the center of her body while holding a 2.0 kg mass in each hand. she then spins around on an ice rink at 1.2 m/s.
a. what is the combined angular momentum of the masses?
b. if she pulls her arms in to 0.12 m, what is her new linear speed?

Which of the following is not a part of a wave? question 2 options: a: frequency b: refraction c: wavelength d: amplitude (whoever answers correctly first gets brainiest! ) ~kayla

Positrons are spontaneously emitted from the nuclei of

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0