While visiting the beach, you blow up a balloon to a volume of 3 liters. You then drag the balloon underwater 5 meters, where the pressure is approximately 150,000
Pa. What is the volume of the balloon 5 meters underwater? (You can approximate
1 atmosphere as 100,000 Pa)
0.6 liters
O2 liters
1 liter
4.5 liters
3 liters

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

What is the magnitude of the resultant vector round your answer to the nearest tenth

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error