In an air-conditioned room at 19. 0 ∘c, a spherical balloon had the diameter of 50. 0 cm. When taken outside on a hot summer day, the balloon expanded to 51. 0 cm in diameter. What was the temperature outside in degrees celsius? assume that the balloon is a perfect sphere and that the pressure and number of moles of air molecules remains the same.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

What gpa will you get if you make all a's and 1 b?

What is a financial award that is based on academic or extracurricular merit? -loan -scholarship -work study -federal grant