Kaitlyn, whose mass is 60kg, is standing on a roof. What is her weight? She jumps off the roof, what is her acceleration? How long does it take her to fall to the ground if the roof is 8m tall? How fast is she going when she gently hits the ground? If impact lasts 1.2s (stunt person air bag), how much force does she feel? If the impact lasts 0.02s (concrete), how much force does she feel?
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Physics, 21.06.2019 16:30
In this experiment, you will use a track, a toy car, and some washers to explore newton’s first two laws of motion. you will make observations and collect data regarding the motion of these objects. in the space below, write a general scientific question that you will answer by doing this experiment.
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Physics, 22.06.2019 12:50
The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.
Answers: 2
Physics, 22.06.2019 13:00
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.
Answers: 3
Kaitlyn, whose mass is 60kg, is standing on a roof. What is her weight? She jumps off the roof, what...
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