A 280K silver spoon is placed in a 366K cup of tea. If the spoon has a mass of 32g and the tea has 90g of mass, what is the final temperature of the spoon?
Ctea=1.00cal/gk and Csilver=0.0558cal/gK
0 364.33K
301.21K
0 353.43K
0 288.32K
0 323K

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?