Soil that is high in humus is usually what color?
What will be an ideal response?
Darkish Gray color
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Why does a hot dog pant?
What will be an ideal response?
Compound Microscope: The eyepiece of a compound microscope has a focal length of 2.50 cm, and the objective has a focal length of 1.60 cm. The two lenses are separated by 14.0 cm. The microscope is used by a person with normal eyes, having a near point at 25 cm. What is the magnitude of the magnification of the microscope?
A. 72 B. 88 C. 180 D. 219 E. 115
Assume a device is designed to obtain a large potential difference by first charging a bank of capacitors connected in parallel and then activating a switch arrangement that in effect disconnects the capacitors from the charging source and from each other and reconnects them all in a series arrangement. The group of charged capacitors is then discharged in series. What is the maximum potential
difference that can be obtained in this manner by using ten 500-µF capacitors and an 800-V charging source? 1.500 V 2.8.00 kV 3.400 kV 4.800 V 5.0
Two objects made from the same material have different masses and different initial temperatures as shown. If the bodies are placed in thermal contact, the final equilibrium temperature is most nearly: