En el campo una geóloga bebe su café matutino de una taza de alumi- nio. La taza tiene una masa de 0.120 kg e inicialmente está a 20.0 °C
cuando se vierte en ella 0.300 kg de café que inicialmente estaba a
70.0 °C. ¿A qué temperatura alcanzarán la taza y el café el equilibrio
térmico? (Suponga que el calor específico del café es el mismo del
agua y que no hay intercambio de calor con el entorno.)
cesare

(1 point) match the differential equations and their vector valued function solutions. you may wish to multiply at least one solution out fully, to make sure that you know how to do it. you can get the other answers quickly by process of elimination and just multiply out one row element.

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

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