why do we launch at a higher altitude to reduce the kinetic energy required to reach orbit?
Q: A 2090 kg truck traveling north at 30 km/h turns east and accelerates to 61 km/h. (a) What is the ch...
A: Consider the mass of the truck be m, the initial velocity of the truck, that is in north direction, ...
Q: NIM.8 A 1500-kg car traveling at a steady speed of 20 m/s (about 44 mi/h) initially due northwest ro...
A: Given values:Mass of the car, M = 1500 kgInitial speed of the car, u = 20 m/s (northwest)Final ...
Q: A 3.00-cm-diameter parallel-plate capacitor with a spacing of 0.500 mm is charged to 500 V. What is ...
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Q: first order amplitude determines loudness, does our ear hear all sounds with the same amplitude as e...
A: The sounds having same amplitude but different frequencies will hear at different loudness. Loudness...
Q: A window cleaner is pulling himself up to a pulley that consists of two disks welded together as sho...
A: Given:Force exerted by the cleaner, F =597.5 NPerson’s mass, m = 88.3 kgPully total moment of inerti...
Q: A figure skater glides along a circular path of radius 4.60 m. If she coasts around one half of the ...
A: The displacement travelled by the skater from the starting location is equal to the diameter of the ...
Q: How many orders of magnitude is the intensity increase between a quiet radio and busy street traffic
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Q: A Federation starship ( 2.10×106 kg ) uses its tractor beam to pull a shuttlecraft ( 2.10×104 kg ) a...
A: Given information:Mass of the shuttle craft (ms) = 2.10 × 104 kgMass of the Federation ship (mf) = 2...
Q: A ball of mass mb and volume V is lowered on a string into a fluid of density ρf. Assume that the ob...
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