Mrs. Roberts' class was designing science experiments. Carl and his partner decided to use the outdoor classroom as their laboratory. Since there was a bird feeder in the outdoor classroom, they decided to design an experiment about the feeding habits of birds in their area. Which question would be MOST appropriate to guide the scientific investigation?

A) What do birds eat?
B) What type of seeds do birds prefer?
C) Which seeds do our feeder birds prefer?
D) Which types of seeds do our feeder birds eat?

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

Ais not a mixture. colloid compound suspension solution

1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?