Physics, 13.10.2020 04:01 natalie857123
MARKING BRAINLIEST AND I NEED WORK SHOWN ! i’m a junior in high school
Free Fall Practice Problems
1. A baseball is popped straight up in the air at a velocity of 42.0 m/s.
What time does it spend in the air before reaching the same
elevation from which it was popped up?
2. A golf ball is dropped from a cliff and strikes the ground with a
downward velocity of 34.0 m/s. How high is the cliff?
3. An air rocket is launched straight upwards at 27.0 m/s. What is its
velocity at time t=4.80 s?
4. A giant lizard jumps straight upwards from the ground at 4.30 m/s.
To what height does the lizard rise before going back down again?
5. A person falls from a bridge that is 18.0 m above the water. What
is the velocity of impact with the water?
Answers: 1
Physics, 22.06.2019 07:20
Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?
Answers: 3
Physics, 22.06.2019 23:00
Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.
Answers: 2
Physics, 22.06.2019 23:40
Acorporation gives out its profits as dividends paid to whom?
Answers: 1
MARKING BRAINLIEST AND I NEED WORK SHOWN ! i’m a junior in high school
Free Fall Practice Problems...
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