A person watching a train going by says the train is moving 50 km/hr. A person in the train claims the train is not moving. Who is correct?
A) Both are correct in some sense, but should be more specific when describing the motion.
B) The person watching the train going by.
C) The person in the train.
D) Both are wrong.
A) Both are correct in some sense, but should be more specific when describing the motion.
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Two electric charges each equal to +Q, are separated by a distance d. If you make a graph of the electric potential as a function of the distance along the line connecting the two charges, the point exactly midway between the two charges would
A) be a relative maximum. B) be a relative minimum. C) be neither a relative maximum nor a relative minimum. D) oscillate between being a relative maximum and a relative minimum.
A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 37.2°. Part of the beam is transmitted and part is reflected. What is the angle between the reflected and transmitted rays?
a. 23.8° b. 103° c. 119° d. 61.0° e. 127°
The terms velocity and speed have identical meanings in physics
a. True b. False Indicate whether the statement is true or false
The primary purpose of an astronomical telescope is to magnify the images of distant objects, making them appear closer
Indicate whether the statement is true or false