In which situation does the law of conservation of momentum apply? 1.) in the absence of greatest velocity 2.) in the presence of least velocity 3.) in the absence of outside forces 4.) in the presence of outside forces

Which of the following would not be taken into consideration when describing the quality of a sound

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.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e