Recent content by rain_ex

Thank you. I'm assuming that the 2nd question's solution was correct too?

Homework Statement A 50g ice cube has no friction. It compresses a string with the constant 25 N*m a total of 10 cm. Find the max height reached by the ice cube before it starts sliding back down the slope, after it is released from the spring. Known: m = 50g (.05kg) k = 25 Nm x =...

Okay I gave it another try and got D, 3.56x10^6 m, but I'm not certain if I followed you correctly. Possible reasons for error: Is "d" referring to the radius or is that what I substitute in? Do I substitute "a" for 0.5400 or 5.292 m/s^2? Thank you!

1. In an amusement park ride, passengers stand inside an 8 m radius cylinder. Initially, the cylinder rotates with its axis oriented along the vertical. After the cylinder has acquired sufficient speed, it tilts into a vertical plane, that is, the axis tilts into the horizontal, as shown in the...

Circular Motion and Universal Law of Gravitation Homework help! Homework Statement The passengers in a roller coaster car feel twice as heavy as their true weight as the car goes through a dip with a 30 m radius of curvature. What is the car's speed at the bottom of this dip? Given: r =...

Homework Statement 1. A typical white dwarf star, which once was an average star like our Sun but now in the last stage of its evolution, is the size of our Moon but has the mass of our Sun. What is the surface acceleration due to gravity on this star? (Msun = 1.99 x 10^30 kg, Rmoon = 1.74 x...