Substance X is placed in a container with substance Y. Both substances are fluids. Substance X initially sinks to
the bottom of the container. After five minutes of being
heated on a hot plate, substance X becomes less dense
than substance Y.
What will most likely happen next?
Substance X will rise due to convection.
O Substance Y will rise due to convection.
Substance X will rise due to radiation.
Substance Y will rise due to radiation.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.

The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength