A dog with mass of 43 kg is running with a velocity of 2 m/s. What is its momentum? O 86 kgm/s
O 45 kgm/s
O 21.5 kgm/s
O 0.0465 kgm/s

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?