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1. Two kilograms of 40-C air is contained in a 4-m3 volume. Calculate the pressure, density, specific volume, and specific weight. 2. The temperature outside a house is -20-C and inside it is 20-C. What is the ratio of the density of the outside air to the density of the inside air? Would inflltration, which results from cracks around the windows, doors, and siding, etc., occur even with no wind causing a pressure difference?
Basic science concepts in optics like Which types of electromagnetic radiation can be seen from the surface of Earth.
The position of a particle is given in cm by x = (7) cos 9t, where t is in seconds. Discover the maximum acceleration of the particle. Discover the maximum speed.
A 100 Watt light bulb is powered by 120 V AC, 60 Hz household connection. Determine the rms current and the peak current
While john is travelling along an interstate highway, he notices a 160 mile marker as he passes through town. Later John passes another mile marker, 119.
A sealed tank containing seawater to a height of 11.1m also contains air above the water at a gauge pressure of 2.85atm. How fast is the water moving
A pilot of mass 70kg pulls out of a dive following a circular path of radius 850m and at a speed of 200m/s. what is the force that the pilot feels
During a "brown out," the power line voltage drops from 120 V to 115 V. By how much does the thermal power output of a 1000 W stove burner drop
An engine absorbs 1.69 kJ from a hot reservoir at 277 °C and expels 1.24 kJ to a cold reservoir at 27 °C in each cycle. What is the power output of the engine if each cycle lasts 0.298 s
If you were to take a 60.0 cm long steel bar, and heated it to the point that it would try to expand by 0.50 mm, What is the pressure you would need to apply
An object is 23.2 cm from the surface of a refiective spherical Christmas-tree ornament 5.11 cm in radius. What is the apparent position of the image
A solar cell, 3.0 cm square, has an output of 350 mA at 0.80 V when exposed to full sunlight. How many cells will you need to create the panel
A crate of mass 45.0 kg is being transported on the flatbed of a pickup truck. What is the acceleration of the crate relative to the ground
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