5. What is the heat energy generated/emitted by the metal when a 250 kg lump of iron cools from
650° C to 20°C? Specific heat of iron is 449
J/kg
1,459,250,000 J

70,717,500 )
112,250 J
-70,717,500 J

What is the maximum acceleration of the wing tips, in units of g?

Apossible explanation for a set of facts that can be tested by further investigation is called

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.