a silver wire 1mm in diameter transfers a charge of 65C in a hour. silver contains 5.8×10 the power of 26 free electrons per cubic meter a) what is the current in the wire ? b) what is the magnitude of drift velocity of free electrons in the wire ?​

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).