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Question: Suppose that after a hike in the mountains, a friend asks how fast you walked. You recall that the trail is about 6 miles long and that it took between two and three hours.
Part A: What is your average speed if you assume the average time of 2.5h?
I've already tried my hand at this a few times and the system says my answer differs significantly from what is required. Can you please try to be a little thorough in your explanation or maybe show additional working out?
Water is moving with a speed of 2.0 m/s through a perfectly sealed long pipe with a cross sectional area of 8 cm^2. The water descends 9 m as the pipe changes in area to 6 cm^2.
A stretched rubber band has the length of 0.04 m and a fundamental frequency of 462 Hz. What is the speed at which waves travel on the rubber band.
A 240 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 1.9 N/cm (Fig. 7-43). The block becomes attached to the spring and compresses the spring 14 cm before momentarily stopping.
A 20 kg piece of steel pipe that is 20 cm in diameter, 80 cm long, What is its angular velocity and its total kintetic energy
Write a complete set of equations from Kirchhoffs for the circuit -
In an old house, the heating system uses radiators, which arehollow metal devices through which hot water or steam circulates.In one room the radiator has a dark color (emissitivity = 0.891).It has a temperature of 66.1 oC.
A balloon is filled with helium at a pressure of 2.4 x 10^5 Pa. The balloon is at a temperature of 18 degrees Celsius, How many helium atoms are contained in the balloon
A container holds a gas consisting of 1.05 moles of oxygenmolecules. One in a million of these molecules has lost a singleelectron. What is the net charge of the gas
A 280 g block on a 50.00 cm-long string swings in a circle on a horizontal, frictionless table at 70 rpm.
Jet fighter planes are launched from aircraft carriers with the aid of their own engines and a catapult. determine the work done on the jet by the catapult
when we look at the magnetic force on a moving charged particle in a uniform magnetic field we see that the force does
A rocket is fired vertically upward. At the instant it reaches some altitude with a speed of 100 m/s. What is the velocity of the third fragment immediately after the explosion
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