let us suppose a person who has a 45 kg mass is riding along a frictionless roller coaster track. The cart at a particular instant, is 15 m above the ground and traveling at 30 m per seconds. Do you think the kinetic and potential energy of the car that the person riding is the same? why?

What types of energy transfers and energy transportations are involved in the domino chain reaction?

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power

When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles