Physics, 18.12.2019 19:31 quinten3700
The st. louis arch has a height of 192 m. suppose that a stunt woman of mass 84 kg jumps off the top of the arch with an elastic band attached to her feet. she reaches the ground at zero speed. the acceleration of gravity is 9.81 m/s 2 . find her kinetic energy after 2.6 s of the flight. assume the elastic band has no length and obeys hooke’s law. answer in units of kj
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An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?
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The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
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According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring
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The st. louis arch has a height of 192 m. suppose that a stunt woman of mass 84 kg jumps off the top...
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