From a distance of 4.0 m, a bystander listens to a jackhammer breaking concrete. How far...
From a distance of 4.0 m, a bystander listens to a jackhammer breaking concrete.
How far would he need to move from the jackhammer so that its perceived loudness decreases by a factor of 12?
Express your answer to two significant figures and include the appropriate units.
The answer is NOT 11 or 12 m
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From a distance of 4.0 m, a bystander listens to a jackhammer
breaking concrete.
How far...
standng S 46 From a distance of 4.0 m, a bystander listens to a jackham- mer...
standng S 46 From a distance of 4.0 m, a bystander listens to a jackham- mer breaking concrete. How far would he need to move from the jackhammer so that its perceived loudness decreases by Ge 59 a factor of 8? duooe eound at
Review | Constants Periodic Table From a distance of 4.0 m, a bystander listens to a...
Review | Constants Periodic Table From a distance of 4.0 m, a bystander listens to a jackhammer breaking concrete. Part A .. MasteringPhysics: HW 6 (Partial) session.masteringphysics.com/myct/itemView?... How far would he need to move from the jackhammer so that its perceived loudness decreases by a factor of 2? Express your answer with the appropriate units. Submitted Answers ANSWER 1: == 1.7 m r = 5.65 m Submit Previous Answers Request Answer ANSWER 2: r = 3.33 m X Incorrect; Try...
this is one question with 3 parts D. From a location 4.0 m away, you listen...
this is one question with 3 parts
D. From a location 4.0 m away, you listen to a jackhammer breaking concrete. 1. How far away would you have to stand in order to reduce the sound intensity by a factor of 8 (12 = 11/8)? Show your calculation. 2. If the intensity of the sound has decreased by a factor of 8, by what factor has the amplitude of the sound wave decreases? Explain your answer. 3. If the intensity...
Constants Part A An electron is released from rest at a distance of 0.310 m from...
Constants Part A An electron is released from rest at a distance of 0.310 m from a large insulating sheet of charge that has uniform surface charge density 3.70x10-12 C/m2 How much work is done on the electron by the electric field of the sheet as the electron moves from its initial position to a point 1.00×10-2 m from the sheet? Express your answer to three significant figures and include the appropriate units W-Value Units Submit Request Answer Part B...
The intensity of an earthquake wave passing through the Earth is measured to be 1.5x106 J/(m².s)...
The intensity of an earthquake wave passing through the Earth is measured to be 1.5x106 J/(m².s) at a distance of 42 km from the source. Part A What was its intensity when it passed a point only 2.0 km from the source? Express your answer to two significant figures and include the appropriate units. ВА ? I = Value Units Submit Request Answer Part B At what rate did energy pass through an area of 5.0 m² at 2.0 km...
A person, with his ear to the ground, sees a huge stone strike the concrete pavement....
A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from the impact: one travels in the air and the other in the concrete, and they are 0.65 s apart. The speed of sound in air is 343 m/s, and in concrete is 3000 m/s. Part A How far away did the impact occur? Express your answer to two significant figures and include the appropriate units. MÅ...
If you dropped a rock from a height of 1.1 m on 243 Ida, how long...
If you dropped a rock from a height of 1.1 m on 243 Ida, how long would it take to reach the ground? Express your answer to two significant figures and include the appropriate units. If you can jump 62 cm straight up on earth, how high could you jump on 243 Ida? (Assume the asteroid's gravity doesn't weaken significantly over the distance of your jump.) Express your answer to two significant figures and include the appropriate units. The asteroid...
A cable lowers a 1150 kg elevator so that the elevator's speed increases from zero to...
A cable lowers a 1150 kg elevator so that the elevator's speed increases from zero to 4.0 m/s in a vertical distance of 6.4 m What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator and Earth.) Express your answer to two significant figures and include the appropriate units. What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the...
Part A How far from a 53.0-mm-focal-length lens must an object be placed if its image...
Part A How far from a 53.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be real? Express your answer to three significant figures and include the appropriate units. Part B How far from a 53.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be virtual? Express your answer to three significant figures and include the appropriate units.
Part A How far from a 47.0-mm-focal-length lens must an object be placed if its image...
Part A How far from a 47.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be real? Express your answer to three significant figures and include the appropriate units. Part A How far from a 47.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be real? Express your answer to three significant figures and include the appropriate units.
standng S 46 From a distance of 4.0 m, a bystander listens to a jackham- mer breaking concrete. How far would he need to move from the jackhammer so that its perceived loudness decreases by Ge 59 a factor of 8? duooe eound at
Review | Constants Periodic Table From a distance of 4.0 m, a bystander listens to a jackhammer breaking concrete. Part A .. MasteringPhysics: HW 6 (Partial) session.masteringphysics.com/myct/itemView?... How far would he need to move from the jackhammer so that its perceived loudness decreases by a factor of 2? Express your answer with the appropriate units. Submitted Answers ANSWER 1: == 1.7 m r = 5.65 m Submit Previous Answers Request Answer ANSWER 2: r = 3.33 m X Incorrect; Try...
this is one question with 3 parts
D. From a location 4.0 m away, you listen to a jackhammer breaking concrete. 1. How far away would you have to stand in order to reduce the sound intensity by a factor of 8 (12 = 11/8)? Show your calculation. 2. If the intensity of the sound has decreased by a factor of 8, by what factor has the amplitude of the sound wave decreases? Explain your answer. 3. If the intensity...
Constants Part A An electron is released from rest at a distance of 0.310 m from a large insulating sheet of charge that has uniform surface charge density 3.70x10-12 C/m2 How much work is done on the electron by the electric field of the sheet as the electron moves from its initial position to a point 1.00×10-2 m from the sheet? Express your answer to three significant figures and include the appropriate units W-Value Units Submit Request Answer Part B...
The intensity of an earthquake wave passing through the Earth is measured to be 1.5x106 J/(m².s) at a distance of 42 km from the source. Part A What was its intensity when it passed a point only 2.0 km from the source? Express your answer to two significant figures and include the appropriate units. ВА ? I = Value Units Submit Request Answer Part B At what rate did energy pass through an area of 5.0 m² at 2.0 km...
A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from the impact: one travels in the air and the other in the concrete, and they are 0.65 s apart. The speed of sound in air is 343 m/s, and in concrete is 3000 m/s. Part A How far away did the impact occur? Express your answer to two significant figures and include the appropriate units. MÅ...
If you dropped a rock from a height of 1.1 m on 243 Ida, how long would it take to reach the ground? Express your answer to two significant figures and include the appropriate units. If you can jump 62 cm straight up on earth, how high could you jump on 243 Ida? (Assume the asteroid's gravity doesn't weaken significantly over the distance of your jump.) Express your answer to two significant figures and include the appropriate units. The asteroid...
A cable lowers a 1150 kg elevator so that the elevator's speed increases from zero to 4.0 m/s in a vertical distance of 6.4 m What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator and Earth.) Express your answer to two significant figures and include the appropriate units. What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the...
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