What magnitude net force is required to accelerate a 1200-kg car uniformly from 0 m/s to 27.0 m/s in?
A) 444 N
B) 1620 N
C) 3240 N
D) 4360 N
E) 11800 N
C
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A 1000-kg car approaches an intersection traveling north at 20.0 m/s. A 1200-kg car approaches the same intersection traveling east at 22.0 m/s
The two cars collide at the intersection and lock together. Ignoring any external forces that act on the cars during the collision, what is the velocity of the cars immediately after the collision? A) 29.7 m/s in a direction 47.7° east of north B) 21.1 m/s in a direction 47.7° west of south C) 15.1 m/s in a direction 52.8° east of north D) 21.1 m/s in a direction 52.8° east of north E) 21.1 m/s in a direction 47.7° east of north
Compare and contrast latitude and declination. How does each relate to your position on Earth?
What will be an ideal response?
The fraction of incident light that a body reflects is known as its
a. Rayleigh scattering. b. insolation. c. albedo. d. humidity.
The predominant gas in the atmosphere of Earth is
A) oxygen. B) nitrogen. C) water vapor. D) carbon dioxide. E) methane.