Aliens on Krypton build a spacecraft 472. teef long. In their units the speed of light is 22.2 million teef/ces. How fast (teef/ces) must it travel to appear to be 66.6 teefs long?
What will be an ideal response?
0.99c = 22. × 106 teef/ces
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A car enters a 300-m radius horizontal curve on a rainy day when the coefficient of static friction between its tires and the road is 0.600. What is the maximum speed at which the car can travel around this curve without sliding?
A) 29.6 m/s B) 33.1 m/s C) 24.8 m/s D) 42.0 m/s E) 37.9 m/s
Find the orbital speed of an ice cube in the rings of Saturn
The mass of Saturn is 5.68 × 1026 kg and the rings have an average radius of 100,000 km. (G = 6.67 × 10-11 N ? m2/kg2) A) 27.5 km/s B) 13.8 km/s C) 1.95 km/s D) 19.5 km/s
An astronomical unit is larger than a light-year
Indicate whether the statement is true or false
A 4.00 kg ball is moving at 2.00 m/s to the WEST and a 6.00 kg ball is moving at 2.00 m/s to the NORTH. The total momentum of the system is
A. 21.6 kg m/s at an angle of 17.7 degrees NORTH of WEST. B. 14.4 kg m/s at an angle of 45.2 degrees SOUTH of WEST. C. 21.6 kg m/s at an angle of 45.2 degrees SOUTH of WEST. D. 14.4 kg m/s at an angle of 56.3 degrees NORTH of WEST. E. 21.6 kg m/s at an angle of 56.3 degrees NORTH of WEST.