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1. A 0.600 m long pendulum is used to determine the acceleration due to gravity on a distant planet. If 20 complete oscillations are completed in 35.5 s the acceleration would be? Show all your work!
2. If you hear your echo 1.10 s after you shout across a canyon and soundwaves travel 340 m/s how wide is the canyon? Show all your work!
3. If the distance between two consecutive nodes in a vibrating spring is 12.0 cm and the frequency of the source is 18.0 Hz what are the wavelength and the speed of the wave? Show all your work!
consider a piston-cylinder device that contains nitrogen gas as the system. initially the system is at 1 mpa and
A 1kg block of ice at 0o C falls into alake whose water is also at 0o C, and 0.01 kg of the icemelts. What was the minimum altitude from which the ice fell
A piston-cylinder device initially contains 1.4 kg of saturated liquid water at 200oC. Determine the final temperature and pressure
In each of the diagrams below, one or more external forces act on the indicated system. Which of the forces listed below are the reaction to the external force mentioned? (Select all that apply.)(a) the mower exerts a forceupward on the Earth due to ..
Assuming normal temperature and pressure outside, and normal pressure inside, what must be the inside temperature (in Celsius) if the hot air balloon has diameter 17 meters and carries 446.3 kg load? (Except the mass of air inside, everything else is..
A person rides a motorbike 190 m along a road that slants upward at 9.0 o from the horizontal. How far has the rider gone in the horizontal direction? How much higher will the rider be at the end of the trip?
Superman throws a boulder of weight 2400N at an adversary. What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 14.4m/s^2 ?
Suppose a planet is discovered that has the same amount of mass in a given volume as the Earth, but has radius 1/5 . Calculate the acceleration due to gravity on this planet
A 2.5-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of the spring/mass system is 2.6 J. Determine is the elastic potential energy of the system when the 2.5-kg block is ..
A plane flies north at 75m/s with respect to the air. The wind blows southeast (45) at 30 m/s. What is the resultant vector for the velocity of the plane
Two trees have perfectly straight trunks and are both growingperpendicular to the flat horizontal ground beneath them. What is the magnitude of the squirrrel's displacement
In a 8.32 km race, one runner runs at a steady 12.11 km/h and another runs at 14.32 km/h. How long does the faster runner have to wait at the finish line to see the slower runner cross
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