An astronaut is in equilibrium when he is positioned 140 km from the center of asteroid c and 581 km from the center of asteroid y, along the straight line joining the centers of the asteroids. what is the ratio of the masses x/y of the asteroids? a. 17.2b. 0.0581c. 0.241d. 4.15

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?