Physics, 22.05.2020 03:06, tmrsavage02p7cj16
5. (1.5 points) A 180 pound person carries a 25 pound can of paint up a helical staircase that encircles a tower with a radius of 20 feet. The tower is 90 feet high and makes exactly three complete revolutions. If there is a hole in the can of paint and 9 pounds of paint leaks steadily out of the can during the person’s ascent, how much work is done by the person against gravity in climbing the stairs?
Answers: 2
Physics, 22.06.2019 04:00, Isaacochoa780
The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane
Answers: 2
Physics, 22.06.2019 07:30, babygreg2001p97abr
Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?
Answers: 1
Physics, 22.06.2019 11:10, ladybee05
Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.
Answers: 3
5. (1.5 points) A 180 pound person carries a 25 pound can of paint up a helical staircase that encir...
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