Origin of Fossil Fuels
What will be an ideal response?
Fuels formed hundreds of years ago that are made of coal, oil, and natural gas
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When railroad tracks make a curve, the outer track is longer. This means a wheel that rides on the outer track needs to somehow
A) roll slower than the wheel on the inner track. B) maintain the same speed as the wheel on the inner track. C) roll faster than the wheel on the inner track.
A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mass 100.g. The collision is elastic. What is the speed of each ball immediately after the collision?
What will be an ideal response?
A jet plane is launched from a catapult on an aircraft carrier. In 2.0 s it reaches a speed of 42 m/s at the end of the catapult. Assuming the acceleration is constant, how far did it travel during those 2.0 s?
A) 16 m B) 24 m C) 42 m D) 84 m
In chlorine gas, the bond between the two chlorine atoms is
a. ionic. b. single covalent. c. triple covalent. d. double covalent.