9. What is the mass of a 50 N object on the Earth? Given
g= 10 m/s2
a 5 kg
b 25 kg
C 10 kg
d 50 kg
Hel hurry

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Name the non metal condut electricity

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants