A29.0 g ball is fired horizontally with initial speed v0 toward a 100 g ball that is hanging motionless from a 1.0 m long string. the balls undergo a head-on, perfectly elastic collision, after which the 100 g ball swings out to a maximum angle θmax=50∘, what was v0?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

Three resistance 4,4 and 6 ohms are joined in the series.the total resistance will be