A 1kg dart moving horizontally makes an impact with and sticks to a block of wood that is 11kg the two objects then slide on a frictionless surface with a speed of .8 meters per second what is the velocity of the dart before it hits the wood?
The Thermosphere contains a layer of charged particles called the ________________ which makes commucation by _________________ possible and is home to the __________________ (Nothern Lights). This is the layer in which ____________________ fly.
explain how the following terms are related: element, atom, molecule, chemical bound, compound, mixture, and substance.
List frog, bat, lobe-finned fish, and alligator in order of their relationship to humans. Start with the species most closely related to humans.
Assume a hydro power plant with 85% efficiency and 30m head. It is measured that 60 kg of water passes through the turbine in 1 s. What is the output electrical power of this power plant? a) less than 1 kW b) between 1 kW and 10 kW c) more than 10 kW Please show calculations!
200 kW of solar radiation is shining on a 300 m^2 parking lot. What is the insulation on the parking lot? Show your calculations here: a) less than 0.5 Sun b) between 0.5 Sun and 1 Sun c) more than 1 Sun
