If the price were $2, a a) surplus of 50 units would exist and price would tend to rise. b) surplus of 25 units would exist and price would tend to fall. c) shortage of 25 units would exist and price would tend to fall. d) shortage of 50 units would exist and price would tend to rise.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3