A small ball is released from rest at position A and rolls down a vertical circular track under the influence of gravity
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A supercluster is a cluster of supergiants
Indicate whether the statement is true or false
When Jean hikes a distance of 1 km in a time of one-half hour her average speed is
A) nearly 1 km/h. B) 1 km/h. C) slightly more than 1 km/h. D) 2 km/h.
Two loudspeakers placed 6.00 m apart are driven in phase by an audio oscillator having a frequency range from 1595 Hz to 2158 Hz
A point P is located 4.70 m from one loudspeaker and 3.60 m from the other speaker. The speed of sound in the room is 344 m/s. At what frequency (or frequencies) of the oscillator does the sound reaching point P interfere destructively? (There could be more than one correct choice.) A) 2100 Hz B) 1720 Hz C) 1630 Hz D) 2130 Hz E) 2030 Hz
An electron with a charge value of 1.6 × 10^?19 C is moving in the presence of an electric field of 400 N/C. What force does the electron experience?
a. 8.0E–21 N b. 6.4E–22 N c. 6.4E–17 N d. 4.0E+17 N e. 1.6E–17 N