Physics, 01.10.2019 00:30 jojo887314
Agolf ball with an initial angle of 34° lands exactly 240 m down the range on a level course.
a. neglecting air friction, what initial speed would achieve this result?
b. using the speed determined in item (a), find the maximum height reached by the ball.
Answers: 3
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A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
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The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively
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Physics, 22.06.2019 03:50
The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error
Answers: 1
Agolf ball with an initial angle of 34° lands exactly 240 m down the range on a level course.
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