Abaseball leaves a pitcher's hand horizontally at a speed of 104 km/h. the distance to the batter is 18.3 m. (ignore the effect of air resistance.) (a) how long does the ball take to travel the first half of that distance? (b) the second half? (c) how far does the ball fall freely during the first half? (d) during the second half?
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Physics, 22.06.2019 16:30
Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)
Answers: 1
Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
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Physics, 23.06.2019 02:20
Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?
Answers: 2
Physics, 23.06.2019 04:00
Only 3% of the water on earth is usable by humans. even though that 3% is through the water cycle, we still need to be careful not to waste water.
Answers: 2
Abaseball leaves a pitcher's hand horizontally at a speed of 104 km/h. the distance to the batter is...
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