A 900-kg car traveling 30.0° south of east at 12.0 m/s collides with a 750-kg car traveling north at 17.0 m/s. The cars stick together. What is the speed of the wreckage just after the collision?
A) 7.21 m/s
B) 12.2 m/s
C) 20.4 m/s
D) 25.0 m/s
E) 17.3 m/s
A
You might also like to view...
Valles Marineris is a long valley on Mars believed to resemble the rift valleys of eastern Africa
Indicate whether the statement is true or false
A solar cell has a light-gathering area of 12.4 cm2 and produces 0.49 A at 0.93 V (dc) when illuminated with sunlight of intensity 884 W/m2 . What is the efficiency of the solar cell?
a. 42% b. 3.4% c. 64% d. 1.7% e. 19%
Why are there few odors emanating from a properly managed composting toilet?
A) Tight seals prevent the escape of odors. B) Odors are absorbed by a layer of water. C) Decomposition is aerobic. D) The ventilation system steers odors through a carbon filter.
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 × 10^?46 kg ? m2 . The maximum rotational kinetic energy (in eV) is
a. 0.6 b. 0.2 c. 0.4 d. 0.8 e. 1.0