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Hw 1 P 7
Modern wind turbines are...
Review Icon Modern wind turbines are larger than they appear, and despite their apparently lazy motion,...
Review Icon Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high-many times higher than the wind speed. A turbine has blades 51 m long that spin at 14 rpm (Figure 1) Part A At the tip of a blade, what is the speed? Express your answer with the appropriate units. Figure 1 of 1 H Value Units Submit Request Answer At the tip of a...
Please let it be legible, thanks in advance! Part A How much work does an elevator...
Please let it be legible, thanks in advance!
Part A How much work does an elevator motor do to lift a 1000 kg elevator a height of 100 m ? Express your answer with the appropriate units. Wext = 9.8x105 J Submit Previous Answers Correct Part B 31 IC C W X P Correct Part B How much power must the motor supply to do this in 43 s at constant speed? Express your answer with the appropriate units. μΑ...
Please let it be legible, thanks in advance! Hw 1 P 12 Unlike a roller coaster,...
Please let it be legible, thanks in advance!
Hw 1 P 12
Unlike a roller coaster, the seats in a Ferris wheel swivel so that the rider is always seated upright. An 80-ft-diameter Ferris wheel rotates once every 24 Part A What is the apparent weight of a 60 kg passenger at the lowest point of the circle? Express your answer with the appropriate units. HÅ Value Units Submit Previous Answers Request Answer X Incorrect; Try Again What is the...
Please let it be legible, thanks in advance! ROVOW I Constants Penel lable A 480 g...
Please let it be legible, thanks in advance!
ROVOW I Constants Penel lable A 480 g peregrine falcon reaches a speed of 60 m/s in a vertical dive called a stoop. (Figure 1) Part A Figure If we assume that the falcon speeds up under the influence of gravity only, what is the minimum height of the dive needed to achieve this speed? Express your answer with the appropriate units. 1 of 1 НА ? h - Value Units Submit...
Please let it be legible, thanks in advance Hw 3 P 5 Review i Constants The...
Please let it be legible, thanks in advance
Hw 3 P 5
Review i Constants The two ropes shown in the bird's-eye view of (Figure 1) are used to drag a crate 3.5 m across the floor. Part A Figure How much work is done by the force ? Express your answer with the appropriate units. 1 of 1 HÅ 326 N Value Units Ï 20° 500 N Ik Submit Request Answer [ 30° 1 Part B The two ropes...
please let it be legible, thanks in advance Hw 2 P 8 A 2.6 kg block...
please let it be legible, thanks in advance
Hw 2 P 8
A 2.6 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 360 m/s.goes completely through the block, emerging at a speed of 230 m/s. Part A What is the speed of the block immediately after the bullet exits ? Express your answer with the appropriate units. HA ? Value Units Submit Request Answer
Please let it be legible, thanks in advance! As a 1.7x10 kg jet plane lands on...
Please let it be legible, thanks in advance!
As a 1.7x10 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. The cable is attached to a spring with spring constant 5.7x10* N/m Part A If the spring stretches 30 m to stop the plane, what was the plane's landing speed? Express your answer to two significant figures and include the appropriate units. НА Value Units Submit Request Answer
Please let it be legible, thanks in advance! Review Constants Periodic Mark pushes his broken car...
Please let it be legible, thanks in advance!
Review Constants Periodic Mark pushes his broken car 130 m down the block to his friend's house. He has to exert a 120 N horizontal force to push the car at a constant speed. Part A How much thermal energy is created in the tires and road during this short trip? Express your answer with the appropriate units. НА ΔΕΙΑ = Value Units Submit Request Answer
please let it be legible, thanks in advance Hw 5 P4 Part A How much work...
please let it be legible, thanks in advance
Hw 5 P4
Part A How much work must you do to push a 10 kg block of steel across a steel table at a steady speed of 1.3 m/s for 94 s? The coefficient of kinetic friction for steel on steel is 0.60 Express your answer in joules. Wpus = 720 J Previous Answers Correct th What is your power output while doing so? Express your answer in watts. ΨΗ ΑΣΦ...
please let it be legible, thanks in advance Hw 2 P 10 A 300 g bird...
please let it be legible, thanks in advance
Hw 2 P 10
A 300 g bird flying along at 5.7 m/s sees a 10 g insect heading straight toward it with a speed of 35 m/s (as measured by an observer on the ground, not by the bird). The bird opens its mouth wide and enjoys a nice lunch. Part A What is the bird's speed immediately after swallowing? Express your answer in meters per second. O AEC ? m/s...
Review Icon Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high-many times higher than the wind speed. A turbine has blades 51 m long that spin at 14 rpm (Figure 1) Part A At the tip of a blade, what is the speed? Express your answer with the appropriate units. Figure 1 of 1 H Value Units Submit Request Answer At the tip of a...
Please let it be legible, thanks in advance!
Part A How much work does an elevator motor do to lift a 1000 kg elevator a height of 100 m ? Express your answer with the appropriate units. Wext = 9.8x105 J Submit Previous Answers Correct Part B 31 IC C W X P Correct Part B How much power must the motor supply to do this in 43 s at constant speed? Express your answer with the appropriate units. μΑ...
Please let it be legible, thanks in advance!
Hw 1 P 12
Unlike a roller coaster, the seats in a Ferris wheel swivel so that the rider is always seated upright. An 80-ft-diameter Ferris wheel rotates once every 24 Part A What is the apparent weight of a 60 kg passenger at the lowest point of the circle? Express your answer with the appropriate units. HÅ Value Units Submit Previous Answers Request Answer X Incorrect; Try Again What is the...
Please let it be legible, thanks in advance!
ROVOW I Constants Penel lable A 480 g peregrine falcon reaches a speed of 60 m/s in a vertical dive called a stoop. (Figure 1) Part A Figure If we assume that the falcon speeds up under the influence of gravity only, what is the minimum height of the dive needed to achieve this speed? Express your answer with the appropriate units. 1 of 1 НА ? h - Value Units Submit...
Please let it be legible, thanks in advance
Hw 3 P 5
Review i Constants The two ropes shown in the bird's-eye view of (Figure 1) are used to drag a crate 3.5 m across the floor. Part A Figure How much work is done by the force ? Express your answer with the appropriate units. 1 of 1 HÅ 326 N Value Units Ï 20° 500 N Ik Submit Request Answer [ 30° 1 Part B The two ropes...
please let it be legible, thanks in advance
Hw 2 P 8
A 2.6 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 360 m/s.goes completely through the block, emerging at a speed of 230 m/s. Part A What is the speed of the block immediately after the bullet exits ? Express your answer with the appropriate units. HA ? Value Units Submit Request Answer
Please let it be legible, thanks in advance!
As a 1.7x10 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. The cable is attached to a spring with spring constant 5.7x10* N/m Part A If the spring stretches 30 m to stop the plane, what was the plane's landing speed? Express your answer to two significant figures and include the appropriate units. НА Value Units Submit Request Answer
Please let it be legible, thanks in advance!
Review Constants Periodic Mark pushes his broken car 130 m down the block to his friend's house. He has to exert a 120 N horizontal force to push the car at a constant speed. Part A How much thermal energy is created in the tires and road during this short trip? Express your answer with the appropriate units. НА ΔΕΙΑ = Value Units Submit Request Answer
please let it be legible, thanks in advance
Hw 5 P4
Part A How much work must you do to push a 10 kg block of steel across a steel table at a steady speed of 1.3 m/s for 94 s? The coefficient of kinetic friction for steel on steel is 0.60 Express your answer in joules. Wpus = 720 J Previous Answers Correct th What is your power output while doing so? Express your answer in watts. ΨΗ ΑΣΦ...
please let it be legible, thanks in advance
Hw 2 P 10
A 300 g bird flying along at 5.7 m/s sees a 10 g insect heading straight toward it with a speed of 35 m/s (as measured by an observer on the ground, not by the bird). The bird opens its mouth wide and enjoys a nice lunch. Part A What is the bird's speed immediately after swallowing? Express your answer in meters per second. O AEC ? m/s...
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