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Q1. An autographed baseball rolls off a 0.64m high desk and strikes the floor 0.61 m away from the desk. How fast was it rolling on the desk before it fell off? The acceleration of gravity is 9.80 m/s^2.
Q2. An ocean liner leaves New York City and travels 41° north of east for 285 km. How far east and how far north has it gone? In other words, what are the magnitudes of components of the ship's displacement vector in the following directions?
A hydrometer is used to measure the specific gravity of liquids. For a sure liquid a hydrometer reading indicates a specific gravity of 1.15. What is the liquid's density and specific weight? State the answer in SI units.
If a metric ton is 1.000 x10^e3 kg, how many 74 kg people can safely occupy an elevator that can hold a maximum mass of accurately 1 metric ton.
If the contact time with the sidewalk is 1800s, what is the magnitude of an average force exerted on the superball by the sidewalk.
Perform the following unit conversions for parts (A) in the table below (B) through. Show your work using a step-wise approach.
The liquid level system shown in the below figure is initially at the steady state with the inlet flow rate at 1 cfm. Calculate the maximum & minimum values of the output.
A baseball is hit with a speed of 33.0 ms-1 at an angle of 56.0 degrees. It land's on the flat roof of a nearby building with a height of 13 m. If the ball was hit when it was 1.7 m above the ground, what horizontal distance does it travel before it ..
Consider the 642 N weights held by two cables shown. The left-hand cable had tension T2 and makes an angle of thelta2 with ceiling. The right-hand cable had tension 460 N and makes an angle of 47 degrees with the ceiling.
An isolated copper sphere of radius 4.85cm, at first uncharged, is illuminated by ultraviolet light of wavelength 244nm. The work function for copper is 4.70 eV. What charge does the photoelectric effect induce on sphere.
A lighthouse that rises 49 above the surface of water sits on a rocky cliff that extends 19 from its base. A sailor on the deck of a ship sights the top of the lighthouse at the angle of 30.0 above the horizontal.
What is the size of the frictional force acting on the car
Refrigerant-134a enters a compressor at 180 kPa as a saturated vapour with a flow rate of 0.35 m3/min and leaves at 700 kPa. The power supplied to the refrigerant during compression process is 2.35 kW. What is the temperature R-134a at the exit of th..
A 0.180 kg baseball, travelling 32.0 m/s, strikes catcher's mitt that recoils 13.0 cm in bringing the ball to rest. What was an average force (in newtons) applied by the ball to the mitt.
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