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Integrated circuits are manufactured in vacuum chambers in which the air pressure is 7.00x10^-11 mm of Hg.
What is the number density? Assume T= 20 degrees Celcius.
What is the mean free path of a molecule?
A small statue has a height of 3.8 cm and is placed in front of a concave mirror. evaluate the focal length of the mirror
The efficiency of a Carnot engine is 27%. The engine absorbs 795 J of heat per cycle from a hot reservoir at 499 K. Determine the heat expelled per cycle and the temperature of the cold reservoir.
A father and a daughter balance a teeter totter
The wheel on a bench grinder has a diameter of 0.3048 m and a mass of 2.4 kg. It is spinning at 26.2 rad/s when the grinder is turned off. Calculate the net torque on the wheel
A satellite is in a circular orbit very close to the surface of a spherical planet. What is density (mass/volume) of the planet
A 240g ball and a 130g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150rpm.
You are traveling on a hilly road. At a particular spot, when your car is perfectly horizontal, What is the radius of the circular arc in meters
A drinking fountain shoots water about 14 cm up in the air from a nozzle of diameter 0.60 cm. What gauge pressure does the pump have to provide
A 0.350kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.850m/s when it makes a head-on collision with a stationary 0.150kg glider. Find the Final Kinetic Energy of first glider
A glass flask has a volume of 900 ml at a temperature of 20° C. The flask contains 895 ml of mercury at an equilibrium temperature of 20°C. The temperature is raised until the mercury reaches the 900 ml reference mark. The coefficients of volume expa..
Two trains on separate tracks move toward one another. Train 1 has a speed of 130km/hr and train 2 has a speed of 90km/hr. What is the frequency heard by the engineer on train
A tandem (two-person) bicycle team must overcome a force of 155 N to maintain a speed of 9.10 m/s. Find the power required per rider
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