Physics, 13.08.2019 17:20 jasminechambers642
Na downhill ski race, surprisingly, little advantage is gained by getting a running start. (this is because the initial kinetic energy is small compared with the gain in gravitational potential energy on even small hills.) to demonstrate this, find the final speed and the time taken for a skier who skies 70.0 m along a 30â slope neglecting friction: (a) starting from rest. (b) starting with an initial speed of 2.50 m/s. (c) does the answer surprise you? discuss why it is still advantageous to get a running start in very competitive events.
Answers: 1
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Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?
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Physics, 23.06.2019 01:30
Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg
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The device shows the relative humidity at 22°c. what’s the water vapor density if the maximum water vapor in air at this temperature is 20 grams/cubic meter? a device showing that at 22 degrees celsius the relative humidity is 58%. a. 11.6% b. 11.6 g/m3 c. 12.76% d. 12.76 g/m3 reset next
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Physics, 23.06.2019 03:30
As you lift an 88 n box straight upward you produce a power of 72 w. what is the speed of the box?
Answers: 2
Na downhill ski race, surprisingly, little advantage is gained by getting a running start. (this is...
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