Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 10.0 m long. his speed at the bottom of the swing is 8.0 m/s. tarzan does not know that the vine has a breaking strength of 1000 n. what is the largest mass that tarzan can have and still make it safely across the river?

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

Avoltaic cell converts chemical energy to