Physics, 17.12.2020 23:20 genyjoannerubiera
What is the efficiency of a block and tackle if you pull 25 m of rope with a force of 820 N to raise a 75 kg grandfather clock 15 m?
Answers: 3
Physics, 22.06.2019 17:40
Which component of the earthโs atmosphere is decreased due to photosynthesis?
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Physics, 23.06.2019 00:00
Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.
Answers: 1
Physics, 23.06.2019 00:20
The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 ร 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g
Answers: 2
What is the efficiency of a block and tackle if you pull 25 m of rope with a force of 820 N to raise...
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