What velocity change (DV) would be attained spacecraft using a solar sail accelerated at a rate of 0.1 mm/sec2 (10-4 m/sec2) for 365 days?
What velocity change (DV) would be attained spacecraft using a solar sail accelerated at a rate...
In Example 34.6, we imagined equipping 1950DA, an asteroid on a collision course with the Earth, with a solar sail in hopes of ejecting it from the solar system. We found that the enormous size required for the solar sail makes the plan impossible at this time. Of course, there is no need to eject such an object from the solar system; we only need to change the orbit. A much more pressing problem is Apophis, a 300-m asteroid that may be...
Problem Solving: LightSail 2 BOOM LENGTH TOTAL SAIL AREA SIZE REFERENCE 5.6 x 5.6 m (18.4x 18.4ft) 4 m (13ft) 32 m (344ft) Boxing Ring SAIL DEPLOYMENT PROPULSION LightSail 2 was a satellite that was designed to use solar radiation to change its altitude as it circled Earth. The spacecraft had a mass of 5.0kg. It was originally launched by a rocket with its sail closed, and established an orbit at an altitude of 720 km above Earth's surface. Then...
What is the escape speed for a spacecraft (m = 800 kg) at the position of the earth leaving the solar system? IGNORE the masses of ALL the planets, moons, asteroids, and comets in the solar system. 14300 mph 24800 mph O 162 mph 0 66100 mph 0 94000 mph A sun-like star with mass M = 2.00 x 1030 kg and radius R = 7.0 x 10km rotating once per month collapses into a neutron star (r = 16...
Suppose a spacecraft of mass 20000 kg is accelerated to 0.120c. How much kinetic energy would it have? Express your answer to three significant figures and include the appropriate units. KEre = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B If you used the classical formula for kinetic energy, by what percentage would you be in error? Express your answer using two significant figures. IV. ADD A O O ? KE KErel...
Constants In this example we will investigate the viability of using radiation pressure to propel a spacecraft. Suppose a spacecraft with a mass of 2.50 x 10 kg has a solar sail made of perfectly reflective aluminized film with an area of 2.59 x 106 m2 (about 1 square mile). If the spacecraft is launched into earth orbit and then deploys its sail at right angles to the sunlight, what is the acceleration due to sunlight? (At the earth's distance...
Steam is accelerated by a nozzle to a velocity of 200 m/s at a rate of 4 kg/s. If the steam at the nozzle exit is 300 °C and 2 MPa, then what is the cross-sectional area in cm2 of the exit opening of the nozzle? 2am icNiel Crews, 2013 cm2
Question B4 Figure QB4 shows a spacecraft which is moving through space at a constant velocity. The xyz axes are fixed to the craft. At the instant under consideration, the craft has a constant rotation of 1 radis about the z axis, the solar panels are at an angle of 30° to the z axis and is increasing at the constant rate of radis. (a) Determine the vector expression of the angular acceleration of the right hand panel. (4 marks)...
QUESTION 1: A fireworks shell is accelerated from rest to a velocity of 55.0 m/s over a distance of 0.210 m. (a) How long (in s) did the acceleration last? s (b) Calculate the acceleration (in m/s2). (Enter the magnitude.) m/s2 QUESTION 2: A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an average rate of 5.70 ✕ 105 m/s2 for 9.60 ✕ 10−4 s. What is its muzzle velocity (in...
Tethers are long dangling wires that use the velocity of a spacecraft through the Earth's magnetic field to generate electrical power. Alternatively, electrical currents pushed through the tether might be used to change the spacecraft velocity for either propulsion or for braking and reentry. Several 'space tether experiments have been flown to investigate the possible use if Faraday's law for power generation and/or propulsion. Examples are the 1996 joint US/Italy effort to deploy a 20 km tether from one of...
Question 4 Using the vibration nomograph, write down your choife of a suitable vibration velocity level (mm/s) for a helicopter rotor to work in Satisfactory' conditions 1000 1000 mm/s 10 mA 100 Destructive Displacement (rms) 1 mm mm 10 mm 100 Wall damage 100 am Cracks 100 mA 71 mm/s Impermissible 30 10 No damage 10 am Minor Unsatisfactory damage Threshold Satisfactory Reduced comfort 24-h Jm exposure 1 m 01 Good Threshold of perception 1 am 011 mms 0.1 Acceless...