A hot-air balloon contains air at a temperature of 180 oF. The surrounding air has a temperature of 60 oF. The radius of the spherical balloon is 30.6 ft. The weight of the empty balloon is 200lb. Determine the maximum load (in lbf) that the balloon can lift. Use thermodynamic tables to obtain the density of the hot-air and surrounding air.

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

See the attachment and solve question 5th