Physics, 29.05.2021 18:30 swiseman6703
. A man throws a stone vertically downward with an initial
speed of 12.0 m/s from the roof of a building, 30.0 m
above the ground. (a) How long does it take the stone to
reach the ground? (b) What is the speed of the stone at
impact?
Answers: 1
Physics, 22.06.2019 13:10
The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.
Answers: 3
Physics, 23.06.2019 02:00
2select the correct answer. javed suffers from a severe food allergy. which device should javed always carry? a. inhaler b. epi pen c. nebulizer d. insulin pen
Answers: 1
Physics, 23.06.2019 15:00
Basilisk lizards can run across the top of a water surface (see the figure). with each step, a lizard first slaps its foot against the water and then pushes it down into the water rapidly enough to form an air cavity around the top of the foot. to avoid having to pull the foot back up against water drag in order to complete the step, the lizard withdraws the foot before the water can flow into the air cavity. if the lizard is not to sink, the average upward impulse on the lizard during this full action of slap, downward push, and withdrawal must match the downward impulse due to the gravitational force. suppose the mass of a basilisk lizard is 93.7 g, the mass of each foot is 3.37 g, the speed of a foot as it slaps the water is 1.15 m/s, and the time for a single step is 0.531 as. (a) what is the magnitude of the impulse on the lizard during the slap
Answers: 3
. A man throws a stone vertically downward with an initial
speed of 12.0 m/s from the roof of a bui...
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