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Q1. Resolving of the volume of the irregularly shaped objected, any air bubbles sticking to the surface of object when it submerged caused systematic errors. Would this error give and experimental density that is too high or too low. Explain
Q2. A 1300kg car drives around a flat 190m diameter circular track at 30 m/s. What is the magnitude and direction of net force on the car?
A 5.2 x10^2-newton girl takes 10. Seconds to run up two flights of stairs to a landing, a total of 5.0 meters vertically above her starting point. What power does the girl develop during her run.
A meter stick supported at the 50 cm mark has masses of 300 g & 200 g hanging from it at the 10-cm & 60-cm mark, respectively. Where should we hang a third, 400-g mass to keep the meter stick balanced?
What frequency will hear after the train passes
What is the decibel level required for human perception
An 845-N sled is pulled a distance of 173 m. The task requires 1.20 x 10^4 J of work and is done by pulling on a rope with the force of 142 N. At what angle is the rope held.
A particle travels counter clockwise around the origin at constant speed in the circular path that has a diameter of 2.50 m, going around twice per second. Point Q is on the path halfway between points P and R that lie on the x axis and the y axis..
A hunter aims directly at a target (on the same level) 84.2m. If the bullet leaves the gun at a speed of 193 m/s, by how much will it miss the target.
What is modify in frequency ff - fi
How much time is spent in pushing the mower
Calculate the verage speed and time lead by the runner using the definition of average speed.
The flywheel of an engine has a moment of inertia 2.80 {rm kg} cdot {rm m} ^ {2} about its rotation axis. What is its final kinetic energy.
Define the carrier power, total power and sideband power in the AM signal.
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