A hot air balloon contains 85,000 moles of air. To what temperature must the
air be heated to fill a volume of 2500 m at a pressure of 100 kPa? A. 260K
B. 2900 K C. 350 K
D. 0.35 K

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90