Aball of mass 0.35 kg hangs straight down on a string of length 13 cm. it is then swung upward, keeping the string taut, until the string makes an angle of 70° with respect to the vertical. find the change in the gravitational potential energy of the earth-ball system.
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Physics, 21.06.2019 20:00
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.
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Physics, 23.06.2019 00:30
Drag the tiles to the correct boxes to complete the pairs. match the jobs with the education requirements. childcare director clinical psychologist concierge cosmetologist vocational school and state licensure arrowright on-the-job training arrowright a ph.d. with licensure or certification, depending on the state in which you live arrowright a bachelor’s degree in early childhood development arrowright
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Aball of mass 0.35 kg hangs straight down on a string of length 13 cm. it is then swung upward, keep...
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