If a sound wave is produced by a speaker at room temperature and has a
wavelength of 1.85 m. wh...
Physics, 02.04.2020 05:53 loganferg5429
If a sound wave is produced by a speaker at room temperature and has a
wavelength of 1.85 m. what is the frequency of the sound that is
generated? *
Answers: 2
Physics, 22.06.2019 01:30
Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j
Answers: 1
Physics, 22.06.2019 02:00
Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.
Answers: 1
Physics, 22.06.2019 07:30
Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?
Answers: 1
Business, 25.02.2020 23:56
Mathematics, 25.02.2020 23:56
Social Studies, 25.02.2020 23:56
Mathematics, 25.02.2020 23:56
Biology, 25.02.2020 23:56
Geography, 25.02.2020 23:56
English, 25.02.2020 23:56
Computers and Technology, 25.02.2020 23:56