1. An astronaut with mass 80.0 kg is tethered by a strong rope to an orbiting space shuttle.
The mass of the shuttle is 8.55x10^4 kg, and the mass of the rope can be ignored. The shuttle
is far from the earth and moon, so the gravitational forces on it and the astronaut are
negligible. Both the shuttle and the astronaut are initially at rest relative to each other. The
astronaut then pulls on the rope with a force of 90 N.
a) What force does the rope exert on the astronaut?
b) What is the astronaut's acceleration?
c) What force does the rope exert on the shuttle?
d) What is the shuttle's acceleration?

What object a collides with object b and bounces back its final momentum is?

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.

[05.02] what is the best explanation of the kinetic molecular theory as it relates to the energy of the molecules in the states of matter? (1 point) the molecules in a gas have greater kinetic energy than those in a liquid, which in turn have greater kinetic energy than the molecules in a solid. kinetic energy cannot be created nor destroyed, and, as a result, all states of matter have the same kinetic energy. the molecules in a gas have greater kinetic energy; therefore, they are more tightly packed than the molecules in either a liquid or a solid. the molecules in gases and liquids, in constant motion, have greater kinetic energy than those in a solid, which do not move or vibrate because their position is fixed.