A 0.25-kg stone is held 1.5 m above the top edge of a water well and then dropped into it. The well has a depth of 4.5 m. (a) Relative to the configuration with the stone at the top edge of the well, what is the gravitational potential energy of the stone−Earth system before the stone is released? 11.025 Incorrect: Your answer is incorrect. Your response differs from the correct answer by more than 100%. J (b) Relative to the configuration with the stone at the top edge of the well, what is the gravitational potential energy of the stone−Earth system when it reaches the bottom of the well? 0 Incorrect: Your answer is incorrect. The correct answer is not zero. J (c) What is the change in gravitational potential energy of the system from release to reaching the bottom of the well? J
Solved
Show answers
More tips
- S Science and Technology Colliders: How They Work and Why They Matter...
- C Construction and repair How to Choose the Best Underfloor Heating?...
- C Computers and Internet How to Get Rid of Windows Genuine Check?...
- C Computers and Internet War of Social Media: Which Platform is the Leader?...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
Answers on questions: Physics
- P Physics Household appliances convert electricity into one or more different forms of energy. An electric fan can be described as converting electricity into :...
- P Physics Poti sa trnasformi energia mecanica in caldura ? daca da de ce ?...
- P Physics 28 + 11 = 7 + 12 = 15 + 2 = 22 + 1 = 45 + 2 = 18 + 2 = 7 + 11 = 10 + 11 = 12 + 10 = 11 + 2 = 15 + 10 = 16 + 12 = 2 + 24 = 62 + 10 = 98 + 2 = 12 + 3 = 18 + 12 = 2 + 17 = 14 + 11...
- P Physics A toaster oven draws 10 A at 110 V. How much power does it consume ? P = I ΔV P = I^2 R P = ΔV^2 / R; ^ for exponentiation. A. 1100 W B. 0.09 W C. 110 W...
- P Physics You use the lever below to lift a box. Capu 0.2 m 0.26 m If you apply a force of 220 N to the lever, how much force is applied to lift the crate? A. 286 N B. 169 N C. 455 N D....
- P Physics Plz help plzzzzzzzzzzzzz i will give brainliest...
- P Physics Light rays bend as they pass from air into water at an angle (not 90 degrees). This is refraction. Air Water Normal Incident ray Refracted ray Which quantity doesn’t change when...
- P Physics Is there any position in the elliptical orbit of a satellite where the tangential component of the acceleration is greater than the component perpendicular to the tangential component?...
- P Physics Plz help brainliest plzzzzzzzzzzzzzzzzz...
- P Physics A hollow spherical planet is inhabited by people who live inside it, where the gravitational is zero. When a very massive space ship lands on the planet s surface, the gravitational...
Ответ:
A) 3.579J
B) - 110.36J
C) - 7.38N
Explanation:
A) Gravitational Potential Energy = mgh
Where m is mass, g is acceleration due to gravity and h=height.
Now in this question, height of well is taken to be in area of zero gravitational potential energy, thus
sign is positive.
Gravitational potential energy = mgh = 0.25 x 9.81 x 1.5 = 3.579J
b) In this question, the height is now below the area of zero gravitational potential energy and so h changes to -h.
Thus, sign is negative
Gravitational Potential Energy = mgh = 0.25 x 9.81 x (-4.5) = - 110.36J
c) Again, Gravitational Potential Energy = mgh
But here, since we are looking for change in gravitational potential energy, h = - h1 - h2
Thus,
Gravitational Potential Energy = mg(-h1-h2) = 0.25 x 9.81 x (-1.5-4.5) = - 7.38N
Ответ:
A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. ... A high pressure system has higher pressure at its center than the areas around it. Winds blow away from high pressure.