Problem 8--circular motion and projectile motion: tarzan (mass 80 kg) swings at the end of an 8.0-m long vine. when directly under the vines support, he releases the vine and files across a swamp. when he releases the vine, he is 5.0 m above the swamp and 10.0 m horizontally from the other side. determine the force the vine exerts on him at the instant before he lets go (the vine is straight down when he lets go).

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount