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Q1. Two boats start together and race across a 46 km-wide lake and back. Boat A goes across at 60 km/h and returns at 60 km/h. Boat B goes across at 20 km/h, and its crew, realizing how far behind it is getting, returns at 70 km/h. Turnaround times are negligible, and boat that completes the round-trip first wins.
Q2. A flight attendant pulls her 71 N flight bag a distance of 322 m along a level airport floor at a constant velocity. The force she exerts is 36 N at an angle of 53° above the horizontal.
The link between portfolio level objectives with portfolio success factors that are achieved through individual projects and points out how contributes to strategic fit, use of synergies, etc.
Compute coefficient of kinetic friction
Which is safer as a road material
The coil is flipped so its plane is vertical to the magnetic field in 0.050 s. What is the magnitude of the average induced emf.
What is the coefficient of static friction
What is magnitude of the difference in frequency
An elastic cord is 69 cm long when a weight of 57 N hangs from it but is 70 cm long when the weight of 75 N hangs from it. What is the "spring" constant k of this elastic cord.
Assume that the rod is held at rest horizontally and then released. (Throughout the remainder of this problem, your answer may include the symbol, moment of inertia of the assembly, whether or not you have answered the first part correctly.)
What is momentum of the system immediately after the pack is thrown?
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
You are driving home from school steadily at 94 km/h for 150 km. It then begins to rain and you slow to 63 km/h. You arrive home after driving 3 hours and 30 minutes. How far your hometown from school and what is was your average speed.
Find out the friction force on the box
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