After the water ballon launch a physics studnet got a hold of an unbroken wayer balloon and degides to throw it back at mr begay eho is standing on the roof 10 meters above the ground the stufent throws the balloon at an angle of 75 to rhe horixontal at 14m/s is the balloon able to reach the roof

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

By what primary heat transfer mechanism does the sun warm the earth?

Which are causes of mechanical weathering? (check all that apply) a. acid rain b. plant growth c. animal actions d. carbon dioxide e. pressure release i chose b & e and got the question wrong.