Victoria’s ambition is to climb Mount Everest, also known in Nepal as Sagarmatha and in Tibet as Chomolungma. She thinks that the effect of the changing gravitational force will mean that she will find the climb easier as she climbs higher. The Earth’s radius is approximately 6400 km. The height of mount Everest is approximately 8.8 km. a. Explain how the gravitational force between two objects changes with the distance between them. b. With reference to the data above and to what you know about gravitational force field, evaluate Victoria’s prediction. c. Calculate the height above the Earth’s surface at which Victoria’s weight would be half its value on the surface

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit