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A helicopter lifts a 66.5 kg astronaut 13.7 m vertically from the ocean by means of...
A helicopter lifts a 76 kg astronaut 14 m vertically from the ocean by means of...
A helicopter lifts a 76 kg astronaut 14 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/14. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed?
A helicopter lifts a 67 kg astronaut 20 m vertically from the ocean by means of...
A helicopter lifts a 67 kg astronaut 20 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/12. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed? (a) Number Units (b) Number Units (c) Number Units (d) Number Units SHOW HINT
Chapter 07, Problem 017 A helicopter lifts a 81 kg astronaut 19 m vertically from the...
Chapter 07, Problem 017 A helicopter lifts a 81 kg astronaut 19 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/11. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed? (a) Number (b) Number | (c) Number (d) Number Units Units Units Units
help with part 5 1. A 125-kg load is lifted 12.0 m vertically with an acceleration...
help with part 5
1. A 125-kg load is lifted 12.0 m vertically with an acceleration a -0.32g by a single cable. Determine: (a) the tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load, (d) the work done by gravity on the load, and (e) the final speed of the load assuming it started from rest. 2. A 1.60-m tall person lifts a 2.10-kg book from the...
C Exercise 5.14 A 740 kg, light-weight helicopter ascends from the ground with an acceleration of 4.00 m/s Part A...
C Exercise 5.14 A 740 kg, light-weight helicopter ascends from the ground with an acceleration of 4.00 m/s Part A Over a 3.50 s interval, what is the work done by the lifting force? O AD OB ? W Submit Request Answer Part B What is the work done by the gravitational force? AED ROO ? < Trabajo C Exercise 5.14 A 740 kg. light-weight helicopter ascends from the ground with an acceleration of 400 m/s. 00 AED ROO? Submit...
A 7600 kg rocket blasts off vertically from the launch pad with a constant upward acceleration...
A 7600 kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.15 m/s2 and feels no appreciable air resistance. When it has reached a height of 530 m its engines suddenly fail only force acting on it is now gravity. Previous Answers Submit that the Correct Part B How much time after engine failure will elapse before the rocket comes crashing down to the launch pad? ν ΑΣφ. ? t = S Request Answer...
Thank you in advance for any help! A block of mass 3.70 kg moves in a...
Thank you in advance for any
help!
A block of mass 3.70 kg moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as shown in the figure. How much work is done by the force as the block moves from the origin to 8.00 m? 10 T..T.ITT.TT!IIT 10 4 Position (m) 51.8J Submit Answer Incorrect. Tries 3/15 Previous Tries If the block has a velocity of 4.20 m/s at...
Potential from Two Point Charges A +65 μC charge is placed 58 cm from an identical...
Potential from Two Point Charges A +65 μC charge is placed 58 cm from an identical +65 μC charge. If you assume the potential at infinity is zero, then what is the potential midway between the two charges? 4.03x106 v You are correct. Previous Tries Your receipt no. is 160-9970 ( How much work is done to move a 0.50 μc charge from a point midway between the charges to a point 10 cm closer to either of the charges?...
The figure shows a ball with mass m = 0.237 kg attached to the end of...
The figure shows a ball with mass m = 0.237 kg attached to the end of a thin rod with length L = 0.607 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically upward position, with zero speed...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
Chapter 07, Problem 017 A helicopter lifts a 81 kg astronaut 19 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/11. How much work is done on the astronaut by (a) the force from the helicopter and (b) the gravitational force on her? Just before she reaches the helicopter, what are her (c) kinetic energy and (d) speed? (a) Number (b) Number | (c) Number (d) Number Units Units Units Units
help with part 5
1. A 125-kg load is lifted 12.0 m vertically with an acceleration a -0.32g by a single cable. Determine: (a) the tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load, (d) the work done by gravity on the load, and (e) the final speed of the load assuming it started from rest. 2. A 1.60-m tall person lifts a 2.10-kg book from the...
C Exercise 5.14 A 740 kg, light-weight helicopter ascends from the ground with an acceleration of 4.00 m/s Part A Over a 3.50 s interval, what is the work done by the lifting force? O AD OB ? W Submit Request Answer Part B What is the work done by the gravitational force? AED ROO ? < Trabajo C Exercise 5.14 A 740 kg. light-weight helicopter ascends from the ground with an acceleration of 400 m/s. 00 AED ROO? Submit...
A 7600 kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.15 m/s2 and feels no appreciable air resistance. When it has reached a height of 530 m its engines suddenly fail only force acting on it is now gravity. Previous Answers Submit that the Correct Part B How much time after engine failure will elapse before the rocket comes crashing down to the launch pad? ν ΑΣφ. ? t = S Request Answer...
Thank you in advance for any
help!
A block of mass 3.70 kg moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as shown in the figure. How much work is done by the force as the block moves from the origin to 8.00 m? 10 T..T.ITT.TT!IIT 10 4 Position (m) 51.8J Submit Answer Incorrect. Tries 3/15 Previous Tries If the block has a velocity of 4.20 m/s at...
Potential from Two Point Charges A +65 μC charge is placed 58 cm from an identical +65 μC charge. If you assume the potential at infinity is zero, then what is the potential midway between the two charges? 4.03x106 v You are correct. Previous Tries Your receipt no. is 160-9970 ( How much work is done to move a 0.50 μc charge from a point midway between the charges to a point 10 cm closer to either of the charges?...
The figure shows a ball with mass m = 0.237 kg attached to the end of a thin rod with length L = 0.607 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically upward position, with zero speed...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
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