Physics, 02.04.2020 01:31 nyceastcoast
You are designing a ski jump ramp for the next Winter Olympics. You need to calculate the vertical height hh from the starting gate to the bottom of the ramp. The skiers push off hard with their ski poles at the start, just above the starting gate, so they typically have a speed of 2.0 m/sm/s as they reach the gate. For safety, the skiers should have a speed of no more than 30.0 m/sm/s when they reach the bottom of the ramp. You determine that for a 88.0 kgkg skier with good form, friction and air resistance will do total work of magnitude 4000 JJ on him during his run down the slope.
Answers: 1
Physics, 22.06.2019 14:30, makylahoyle
You can decrease the resistance of a length of wire by
Answers: 2
Physics, 22.06.2019 16:50, JeroMii
Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s. part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
Physics, 22.06.2019 18:30, Natasha019
Which word expression describes how much to calculate pressure
Answers: 1
You are designing a ski jump ramp for the next Winter Olympics. You need to calculate the vertical h...
Mathematics, 04.02.2020 14:59
Social Studies, 04.02.2020 14:59
Mathematics, 04.02.2020 14:59
Mathematics, 04.02.2020 14:59
Mathematics, 04.02.2020 15:00