The next external force on a golf cart is 390N north. If the cart had a total mass of 270 kg what is the magnitude and direction of its acceleration

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

Which process is represented by the pv diagram? a. the isobaric process b. the isovolumetric process c. the isothermal process d. the adiabatic process