Physics, 21.07.2019 00:30 antschilt519
1) back on the beach the following day, clay notices that the waves propelling towards the beach have a period of 6 s. if the wave crests are 15 m apart what is the speed at which they are traveling? 2) barry manilow is playing a concert. having purchased your ticket so late you are sitting in the back row 184 m from the stage. if barry hits a note on his keyboard that has a frequency of 400 hz, how many full sound wavelengths are there between you and barry? how much is the time delay between the time the note is played and the time you hear the note? 3) find the frequency of the ultrasonic wave emitted by a bat if it has a wavelength of 0.0085 m4) a "wave" in a football stadium has a period of 2 seconds. if the crests between these " waves" measure 20 m, what is the speed at which the "wave" is traveling?
Answers: 1
Physics, 21.06.2019 19:30, nayashuntel
Asample of a gaseous substance changes into a liquid
Answers: 1
Physics, 22.06.2019 10:00, amyaacrawford86
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Physics, 22.06.2019 23:30, sksksjs
1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?
Answers: 3
1) back on the beach the following day, clay notices that the waves propelling towards the beach hav...
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