Aphoton has encrgy of 50 mev and is moving along the +a axis. another photon has energy of 200 mev and is moving along the -y axis (a) what is the total energy of the system? what is its total momentum? (b) if a single particle had the same energy and momentum, what would its mass be? what would its direction of travel and what would its spoed be?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d

70 give a real life example showing how sensory neurons work with the motor neurons