Consider a two-dimensional projectile motion problem involving a ball starting and ending at the same height. The projectile leaves the ground with an initial velocity of 10 m/s at some angle theta with the horizontal, (a) What value of the angle theta (in degrees) makes the range of the projectile maximum? Explain, (b) What is the range at this angle? (c) How long does it take for the ball to reach maximum height? (d) What is the maximum height?

Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors