A boy in a canoe paddles upriver at a speed of 1.4 m/s relative to the water. The water flows downriver at a speed of 1.4 m/s relative to the riverbed. How fast does the boy's canoe appear to move when viewed by an observer standing on the riverbank? A:0 m/s

B:1.4 m/s up the river

C: 1.4 m/s down the river

D: 2.8 m/s up the river

I want this solved in 5 minutes pl

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

What is the final velocity of the initial velocity of 25 and -50?

What do you think car designers do if the damage caused by a crash test is too severe?