What is the underlying cause of air motion?
What will be an ideal response?
Answer: The unequal heating of Earth's surface.
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An object 4 cm high is placed 15 cm in front of a convex mirror with a focal length of ?10 cm. What is the image position (in cm)?
a. ?8 b. ?4 c. ?2 d. ?6 e. 30
Of the following, pH ____ is the most acidic
a. 1 b. 3 c. 6 d. 7 e. 8
A charged capacitor is connected to an ideal inductor to form an LC circuit with a frequency of oscillation f = 1.6 Hz. At time t = 0 the capacitor is fully charged
At a given instant later the charge on the capacitor is measured to be 3.0 ?C and the current in the circuit is equal to 75 ?A. What is the maximum charge of the capacitor? A) 6.0 µC B) 10 µC C) 8.0 µC D) 2.0 µC E) 4.0 µC
Consider a situation where a constant force of 25 N acts on an object having a mass of 2 kg for 3 seconds.What is the work done by the force?
a. 150 J b. 50 J c. 75 J d. undetermined—not enough information given e. none of the above