both of theoretical mass 50 kg, are ice skating and approach each other along parallel paths separated by 3.0 m. We have opposite velocities of 1.4 m/sec each. Will carries one end of a long pole of negligible mass and I grab the other end as I pass. Assume that the friction between skates and ice is negligible. What are (a) the radius of the circle? (b) our angular speed? And (c) the kinetic energy of our two-skater system? Next, we pull along the pole until we are separated by 1.0 m. What are (d) our angular speed and (e) kinetic energy of the system? (f) What provided the energy for our increased kinetic energy?

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.

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?