A4.0×1010kg asteroid is heading directly toward the center of the earth at a steady 16 km/s. to save the planet, astronauts strap a giant rocket to the asteroid perpendicular to its direction of travel. the rocket generates 5.0×109n of thrust. the rocket is fired when the asteroid is 4.0×106km away from earth. you can ignore the earth’s gravitational force on the asteroid and their rotation about the sun. part a: if the mission fails, how many hours is it until the asteroid impacts the earth? part b: the radius of the earth is 6400 km. by what minimum angle must the asteroid be deflected to just miss the earth? part c: what is the actual angle of deflection if the rocket fires at full thrust for 300 s before running out of fuel?

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

The two required components for a generator

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.