Все публикации

0:07:51

#STATISTICS. variables.types of variables

0:16:51

Transport Systems in the human body.Part 1. The heart

0:05:28

(Periodic motion) An object of mass 2.00 kg is oscillating freely on a vertical ring with a period

0:08:59

Doppler effect (A commuter train passes a passenger platform at a constant speed of 40.0 m/s./

0:04:58

Speed of waves on strings(A 2.65 -kg power line running between two towers has)

0:06:55

Doppler effect (Two trains on separate tracks move toward each other. Train 1 has a speed of)

0:05:46

Spherical waves( A train sounds its horn as it approaches an intersection. The horn can just )

0:08:24

There is evidence that elephants communicate via in-frasound, generating rumbling vocalizations

0:01:16

beats(6A guitarist sounds a tuner at 196 Hz while his guitar sounds a frequency of 199 Hz. Find the)

0:15:22

Beats( Two train whistles have identical frequencies of 1.80 x10² Hz. When one train is at rest in)

0:18:47

interference of sound waves( A pair of speakers separated by a distance d= 0.700 m are driven by

0:18:07

interference of sound waves (Two loudspeakers are placed above and below each other, as in )

0:18:07

(interference of sound waves) Two loudspeakers are placed above and below each other, as

0:10:12

Doppler effect (A baseball hits a car, breaking its window and triggering its alarm which sound)

0:11:16

ratio of sound intensity( skyrocket explodes 100 m above the ground (Fig. P14.24). Three observers )

0:09:27

(Doppler effect)A supersonic jet traveling at Mach 3.00 at an altitude of h =2.00 ×10⁴ m is directly

0:07:18

Interference of Sound(The ship in Figure P14.39 travels along a straight line parallel to the)

0:06:13

speed of sound(A hammer strikes one end of a thick steel rail of length 8.50 m. A microphone )

0:04:00

speed of sound (A group of hikers hears an echo 3.00 s after shouting. How far away is the mountain)

0:04:46

(speed of sound in air). On a hot summer day, the temperature of air in Arizona reaches 114°F. What

0:03:44

Speed of sound(Suppose you hear a clap of thunder 16.2 s after seeing the associated lightning )

0:05:50

Vectors(A vector has an x - component of -25.0 units and a y – component of 40.0 units.

0:06:08

Vectors (A vector has an x- component of 225.0 units and a y-component of 40.0 units.Find the magni)

0:08:59

Dimensional analysis (A shape that covers an area A and has a uniform height h has a volume V=Ah)