The mass of the bicycle and rider is 50 kg and the total area of the tyres in contact with the road is 2.0 × 10 –3 m 2 . The gravitational field strength is 10 N/kg. Calculate pressure.

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.