Apart from the masses, how are binary systems with a neutron star different from binary systems with a white dwarf?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Of is j/kg·k. if a 2.6 kg of isk to k,is ?