Let t be the period of a planet about the sun; that is, t is the time required for it to travel once are 2a and 2b. (a) use part (d) of problem 1 to show that t-2tab/h (b) show that_-ed=-. 2. lliptical orbit. su h2 gm b2 cl 4t2 gm (c) use parts (a) and (b) to show that ta this proves kepler's third law. [notice that the proportionality constant 4? 9(gm) is inde- pendent of the planet.]

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

its a 5.5 n

glad that

continuous conducting path for current, power supply