Practice Problem: A lamp has a 0.5 A current flowing through it. It operates with a potential difference of 12 V. How much power does it use?

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).

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.