How does the temperature of the earth’s mantle compare to the other layers of the earth?
a) the mantle is hotter than the core.
eliminate
b) the mantle is hotter than the crust.
c) the mantle is the same temperature as the core.
d) the mantle is the same temperature as the crust.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

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

Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?