Aproton accelerates from rest in a uniform electric field of 610 n/c. at some later time, its speed is 1.4 106 m/s.(a) find the magnitude of the acceleration of the proton.(b) how long does it take the proton to reach this speed? (c) how far has it moved in that interval? (d) what is its kinetic energy at the later time?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

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?