What are the components of vector a if its magnitude is 70 m/s and makes an angle of 51.7° with the +x-axis? a. ax = 53.6 m/s, ay = 87.0 m/s b. ax = 87.0 m/s, ay = 53.6 m/s c. ax = 43.4 m/s, ay = 54.9 m/s d. ax = 54.9 m/s, ay = 43.4 m/s

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).

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg