Mechano, the evil robot cat, has captured the mous
Mechano, the evil robot cat, has captured the mouse, Jerry (mJ = 0.500 kg), and is about to launch him out of a window using his robotic sling shot.

Part A: You can see that the sling shot has two elastic bands that hold the pouch, which is wrapped around Jerry. Treat each of the bands like a Hooke\'s Law spring, with a spring constant of k = 1800 N/m. The rest length of each \"spring\" is L0 = 0.0550 m. At the time of the launch, the \"springs\" have a length of Lf = 0.100 m.

Part B: What is Jerry\'s speed (vJ) when he leaves the sling shot?

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

How can you increase the strength of an electromagnet?