Aparticle of mass m is acted upon by a net force f. as a result of the force, the particle moves along a line with its position measured as p se the speed is observed to change at a constant rate from a value of s1 at s1 to a value of s2 at s2 from a reference point labelled o. as the particle moves from s1 to s2, (a) express the acceleration of the particle as it moves from s1 to s2 in terms of 81, $2, 81, and s2. (b) if the numerical values of s1, 82, 81, and s2 are 0 m, 500 m, 100 m/s, and 50 m/s respectively, what is the acceleration as the particle moves from s1 to s2?

Which property of fossils allow scientists to determine the relative rock ages..

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

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.