A 1200-kg car is pulling a 500-kg trailer along level ground. Neglect the friction force exerted by the road on the trailer. The car accelerates with an acceleration of 1.3 m/s2. What is the force exerted by the car on the trailer?
A) 550 N
B) 600 N
C) 650 N
D) 700 N
E) 750 N
C
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A full Moon always occurs
a. on the 15th of every month. b. when the Moon is at right angles to the direction of the Sun. c. when the Moon is closer to Sun than the Earth is. d. when the Moon is directly opposite the position of the Sun.
The tunneling current in an STM is _________dependent upon the negative of the gap between the tip and the specimen.
Fill in the blank(s) with the appropriate word(s).
There are three types of collapsed, burned-out stars: black holes, neutron stars, and
A) supernova. B) quasars. C) red giants. D) X-ray stars. E) white dwarfs.
Combinations of atoms from the far right side of the periodic table with atoms from the far left side usually form ______________ compounds
a. organic b. ionic c. covalent d. polar