A spring of spring constant 50. N/m is hanging from a retort stand. A second spring of spring constant 100. N/m is hanging from the bottom of the first spring. A mass of .50 kg is hung from the bottom of the lower spring at rest. Determine:

(a) the overall stretch of the spring combination

(b) the 'effective' spring constant of the spring combination

(c) a general expression for the spring constant of any combination of two springs connected in this manner

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

the rearrangement of particles in a physical change. hope this

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min