REAL ANSWERS Question:Static friction percent error& trying to find the expected static friction value

Info: How do you calculate the static friction percent error for each?

Weight is 277.4g
Static force magnitude 1.1N
Experimented Static Coefficient .5

Weight is 799.8g
Static force magnitude 3.5N
Experimented Static Coefficient .45

What is known:
Ik it’s ((experimented-expected)/expected)* 100 to get the percent error but I don’t know how to calculate the expected

Q: What is the EXPECTED static COEFFICIENTS (decimal 0-1)for both weights and what is the percent error? How did you get to it?

(.5-(expected))/expected

(.45-(expected))/expected

Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1