A jet airliner is cruising at high altitude at a speed of 850km/h. This is equal to 0.85 times the speed of sound at that altitude .What is the air temperature at this altitude ? (Ratio of two specific heats of gas is 1.4 ,molar gas constant is 8.314 and molar mass is 28.8 g/mol)

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?