1) An airplane flies from Manila to Cebu (1031 km) for 94 minutes when no wind blows. On a day with a tailwind, the plane makes the trip in 70 minutes. What is the wind speed in km/hr? 2) Planet X is rotating on its axis every 5332 hour. What is the angular speed of Planet X in every rad/s?

Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease