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Q1. A flight attendant pulls her 66 N flight bag a distance of 381 m along a level airport floor at a constant velocity. The force she exerts is 35 N at the angle of 55° above the horizontal.
Find the coefficient of kinetic friction between flight bag and floor.
Q2. An asteroid is discovered heading straight toward Earth at 13km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 mins, after which the asteroid is moving at 28 degrees to its original path at a speed of 20 km/h/ Find its average acceleration.
Find out vertical and horizontal components
What is the breaking strength
What is magnitude of the runner total displacement
A 180g block hangs from a spring with spring constant 6.0 N/m. At the block is 31cm below the equilibrium point and moving upward with a speed of 98.0cm/s. What is the block's position at t = 9s.
While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest.
What is water speed along the boat during the vertical cross
Find out total vector displacement
What is maximal speed v of the elevator
How much work is completed by the system in this process. Determine the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C. How much work is completed by the system in this process.
Question on constant speed
A screen is placed 51.0 cm from a single slit that is illuminated with light of wavelength 677 nm. If the distance between the first and third minima in the diffraction pattern is 2.80 mm, what is the width of slit.
How much time is the stone in the air
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