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A large helicopter is used to lift a heat pump to the roof of a new building. The mass if the helicopter is 5000 kg and the mass of the heat pump is 1500 kg.
(a) How much force must the air exert on the helicopter to lift the heat pump with an acceleration of 1.5 m/s2?
Sea Launch mission planners are going to launch their Russian launch vehicle from a Lo = 3 degrees into LEO with an inclination of 34 degrees and the longitude of ascending node of 124 degrees. Current LST at the launch site is 1140.
System A has a temprature of TA = 300K and Ua = 30 MJ/kmol. System B has tempratuer TB = 200K and UB = 60MJ/kmol. Describe (qualitatively) the final (equilibrium) state of the combined system
Object 1 has a mass m1 and a velocity 1 = (2.87 m/s). Object 2 has a mass m2 and a velocity 2 = (3.01 m/s). The total momentum of these two objects has a magnitude of 18.0 kg • m/s and points in a direction 66.5° above the positive x-axis. Find out m..
A bullet is fired into a large stationary absorber and comes to rest. Temperature measurements of the absorber show that the bullet lost 2060J of kinetic energy, What is the mass of the bullet
The electric potential difference across the cell membrane of a human cell is 0.080 V, with the higher potential being outside the cell. How much work must be done by the cell to eject the ion
A 2.41 kg block and a 4.82 kg block are initially at rest on a frictionless, horizontal surface, with a compressed spring of negligible mass between them. How much does the kinetic energy of the system increase
A 2.5 kg stone is dropped from a height of 4m. What is its momentum on impact
A 30 cm spring is compressed to 2 cm. a force of 200 N was used to do this. How much potential energy is stored in the spring
Sketch a force diagram for the desk.
q1. the radius of a circle is measured to be 13.6 plusmn 0.2 m. calculate each of the following and give the
A particle having a mass of 0.180 gcarries a charge of ?2.34×10^?8. What are the direction of the minimum magnetic field that will balance the earth's gravitational pull on the particle
The wavelength of a spectral line measured to he lambda on I Earth is found to increase by 50% on a far distant galaxy. What is the speed of the galaxy relative to earth?
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