How much work is done on the astronaut

Assignment Help Physics

Reference no: EM13336980

A helicopter lifts a 72 kg astronaut 19 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

(d) speed?

Reference no: EM13336980

Questions Cloud

Explain the magnitude and direction of the bond dipoles : Which geometry and central atom hybridization would you expect in the series BH4-, CH4, NH4+? (b)What would you expect for the magnitude and direction of the bond dipoles in this series

Calculate the total energy in the center-of-mass system : a proton with a momentum of 200 GeV/c collides with a proton at rest. Calculate the total energy in the center-of-mass system

How many times does the sound reflect back and forth : That is the sound from the organ bounces back and forth off the church walls many times before the sound inentsity decays away completely. If the reverberation time is 10s and the church has the approximate shape

Implements the queue interface : Element from an ArrayList is slow because of all the shifting. For this question, you should modify the poll()method so that it runs in constant time - implementations as well as correct/fast implementations. In the former case, your functions may..

How much work is done on the astronaut : A helicopter lifts a 72 kg astronaut 19 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

Explain what mass of sodium cyanide must be added : What mass of sodium cyanide must be added to 250ml of water in order to obtain a solution having a pH of 10.50? Ka(HCN) = 4.9 x 10 ^-10

What is the volume and surface area of cubes after each cut : A cube is 1 cm X 1 cm X 1cm. It is cut 10 times along x,y,z, axis. What is the volume and surface area, and number of cubes after each cut

What is surface area and volume of each set of cubes made : A cube is 1 cm X 1 cm X 1cm. It is cut 10 times along x,y,z, axis. What is the surface area and volume of each set of cubes made

Virtualization & memory : Evaluate the efficiency and reliability of both the most common nonpreemptive dispatch algorithms and the most common preemptive dispatch algorithms used for scheduling decisions. Provide one (1) example of the best use for each dispatch algorithm..

User Account

All Pages