A satellite with a rest mass of 200 kg and a speed of 0.800c and a second satellite with a rest mass of 100 kg and a speed of 0.600c are traveling toward each other in deep space. The satellites collide and stick together
What is the rest mass of the combined object after the collision? A) 300 kg
B) 389 kg
C) 416 kg
D) 457 kg
E) 587 kg
C
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Which of the following best describes the Milky Way Galaxy?
A) a spiral galaxy with a disk about 100,000 light-years in diameter B) a spiral galaxy with a disk about 1 billion kilometers in diameter C) a spiral galaxy with a disk about 1000 light-years in diameter D) a spherically shaped galaxy that is about 4 light-years in diameter E) a spherically shaped galaxy that is about 100,000 light-years in diameter
The 1560-kg solid steel door to a bank vault is 2.00 m high, 1.00-m wide and 10-cm thick. One hinge is 60.0 cm down from the top on the left-hand side of the door. The other hinge is 30.0 cm up from the bottom. What horizontal force, in what direction, does the door exert on the lower hinge?
A. 6950 N, left B. 6950 N, right C. 7640 N, left D. 7640 N, right E. 15,300 N, left
The coefficient of linear expansion of aluminum is 24.0 × 10-6 K-1, and the density of aluminum at 0°C is 2.70 × 103 kg/m3. What is the density of aluminum at 300°C?
A) 3.93 × 103 kg/m3 B) 2.73 × 103 kg/m3 C) 2.70 × 103 kg/m3 D) 2.67 × 103 kg/m3 E) 2.64 × 103 kg/m3
A satellite orbits just above the Earth's surface. (a) Calculate the period of the satellite. (b) Calculate the speed of the satellite
What will be an ideal response?