Watching fireworks you note that it takes about .25 seconds for the sound to reach your eyes after seeing a burst, if you are directly underneath the launch point.
a) How high in the air (in meters and feet) are the fireworks launched? Assume standard speed of sound.
b) If, instead, you are watching the fireworks 1500ft away from launch point, how long does it take for the sound to reach you? Assume the fireworks reach same height as in part a.
Watching fireworks you note that it takes about .25 seconds for the sound to reach your...
At room temperature, sound travels at a speed of about 344 m/s in air. You see a distant flash of lightning and hear the thunder arrive 7.8 seconds later. How many miles away was the lightning strike? (Assume the light takes essentially no time to reach you.)
A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound, and finds it to be 0.300 s. (Enter your answers to at least four decimal places.) (a) How far away (in m) is the explosion if air temperature is 19.0°C and if you neglect the time taken for light to reach the physicist? 102.5998 (b) Calculate the distance to the explosion (in m) taking the speed of light into account. Note that this...
A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound, and finds it to be 0.300 s. (Enter your answers to at least four decimal places.) (a) How far away (in m) is the explosion if air temperature is 18.0°C and if you neglect the time taken for light to reach the physicist? Calculate the distance to the explosion (in m) taking the speed of light into account. Note that this distance is...
A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound, and finds it to be 0.400 s. (Enter your answers to at least four decimal places.) (a) How far away (in m) is the explosion if air temperature is 25.0°C and if you neglect the time taken for light to reach the physicist? m (b) Calculate the distance to the explosion (in m) taking the speed of light into account. Note that this...
A circus act consists of a performer (a "human cannonball") being launched from a cannon into a net at the other end of the stage. The performer (mass 60 kg) leaves the cannon at a speed of 25 m/s at an angle of 30o above horizontal. She comes out of the cannon at a height of 2 meters above the ground and lands in the net at a horizontal distance of 45 meters away from the launch point. 1. How...
and you see a child on top of a roof of a building kick a soccer ball. The soccer ball is kicked at 51° from the edge of the building with an initial velocity of 17 m/s and lands 67 meters away from the wall. How tall, in meters, is the building that the child is standing on? A boy uses a slingshot to launch a pebble straight up into the air. The pebble reaches a height of 37.0 m...
You are on a ride and you what to see how long it takes to fall from the top. At the highest point the ride is 285 feet high and it takes 1.12 seconds to reach the ground. need to draw a free body diagram of this ride, by defining the positive direction, unpack the problem and what is the velocity at 1.12 seconds?
In order to defeat Bowser, suppose Mario launched a stone from his sling with an initial velocity of 30.5 m/s at an angle θ=20 degrees above the horizontal. The stone flies through the air and strikes Bowser between the eyes exactly 2.00 seconds after it was released. Assume Mario and Bowser are standing on flat ground, and the stone strikes Bowser on its way back down (after reaching its maximum height). You may neglect air resistance. A) how far away...
Your friend is about to drive away after moving out and you notice that they left behind their basketball, so you decide to throw it at a 45 degree from the horizontal towards the truck. If the truck is 7.3 m away from you, at what speed must you throw the ball for it to make it into the truck? Assume you launch the ball at the same height as the truck bed. Report the value in m/s rounded to...
(25%) Problem 4: You place your ear onto a steel railroad track and hear the sound of a distant train through the rails Δ 4.1 seconds before you do through the air. The speed of sound in steel is vs 6100 m/s, and and the air temperature is 12.5° C Find the distance, D, to the train in meters Po cos0 cotan) asin) Su Ar sin acos) de atan)acotan)sinh( coshO tanhO cotanhO 0 END Degrees -Radians BACKSPACE DELCLEAR Submit Hint...