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Q1. If a metric ton is 1.000 x10^3 kg, how many 72 kg people can safely occupy an elevator that can hold a maximum mass of accurately 1 metric ton?
Q2. The rms speed of the molecules in 1.0 g of hydrogen gas is 1800 m/s.
A) What is the total translational kinetic energy of gas molecules?
B) What is the thermal energy of gas?
C) 500 J of work are completed to compress the gas while, in the same process, 1400 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules?
What is work done by the non-conservative force
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin (2pi*t), where F is in newtons and t is in seconds. The force constant of the spring is 35.0 N/m.
What are ranges of wavelength and frequency
A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
What is momentum of the block
An ocean liner leaves New York City and travels 37.0° north of east for 171 km. How far east and how far north has it disappeared? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
Assuming the diver has inhaled a negligible amount of air from the tank, what is the temperature of the ocean water.
How long can craft hover over the moon surface Contract between Einstein's calculations and observed precession
A 3.3 block of wood sits on a table. A 3.0 bullet, fired horizontally at a speed of 480, goes completely through the block, emerging at a speed of 200 .What is the speed of block immediately after the bullet exits.
A crate of 30.2- tools rests on a horizontal floor. You exert a regularly increasing horizontal push on it and observe that the crate just begins to move while your force exceeds 319. After that you must reduce your push to 227 to keep it moving at a..
Find speed of the block at the bottom of the ramp. What is tangential acceleration of a bug on the rim of a 78 rpm record of diameter 7.41 in. if the record moves from rest to its final angular speed in 4 s.
What is the greatest amount through which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass.
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