A plane flies 600 kilometers away from its bad at 400 meters per second then flies back to its base at 600 meters per second. What is it's average velocity?

A car accelerates at 2 m/s² starting from rest. What is the speed it reaches 15 s after the start of the journey? (2 marks)

A natural gas power plant is 60 efficient if one cubic meter of naturla gas provides 1000 btus os electricity. how manybtus of waste electricity is produced?

The gravitational force between a satellite and Earth's moon is 324 N. The mass of the moon is 7.3 * 1022 kg. If the distance from the moon to the satellite is 2.6 * 106 m, what is the mass of the satellite?

Given that two objects interact via some force, the accelerations of these two objects have the same magnitude but opposite directions. (Assume no other forces act on either object.) True False

Which law states that a charge cannot be created or destroyed

Which drum would make a sound that fades away faster - one that makes a loud sound or one that makes a more mellow sound Why?

Which of the following is NOT a way to increase the solubility of a solid in water? A. crushing the solid B. shaking the mixture of solid and water C. raising the temperature of the water D. letting the mixture stand still a long time

Which of the following is true about cells? A. Cells have specialized components that perform different, specific functions. B. A cell's components are all identical and perform the same function. C.

How much heat is contained in 100 kg of water at 60.0 °C?

Which of the following statements is the best definition of weather? Weather is the current conditions in the atmosphere. Weather is the usual conditions in the atmosphere. Weather is the average conditions in the atmosphere.