The uniform 24‐m mast weighs 300 kg and is hinged at its lower end to a fixed support at o. if the winch c develops a starting torque of 1300 n · m, calculate the total force supported by the pin at o as the mast begins to lift off its support at b. also find the corresponding angular acceleration α of the mast. the cable at a is horizontal, and the mass of the pulleys and winch is negligible.

Alice added sodium chloride to water and stirred the water for several minutes. alice is most likely trying to demonstrate that ionic compounds a. are hard. b. can dissolve. c. are clear. d. can melt.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above