Briefly describe the modern theory of how our Moon formed
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The Moon formed from a giant impact of a Mars-size object with Earth. This impact blasted material into Earth orbit that eventually coalesced to form the Moon.
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Monatomic, diatomic, and polyatomic ideal gases each undergo slow adiabatic expansions from the same initial volume and the same initial pressure to the same final volume. The magnitude of the work done by the environment on the gas:
A. is greatest for the polyatomic gas B. is greatest for the diatomic gas C. is greatest for the monatomic gas D. is the same only for the diatomic and polyatomic gases E. is the same for all three gases
An electron (m = 9.11 × 10^-31 kg) has a speed of 0.50 c. Determine the difference between its relativistic kinetic energy and the kinetic energy calculated without considering relativity
a. 3.0 × 10^-15 J b. 2.0 × 10^-15 J c. 1.5 × 10^-15 J d. 2.4 × 10^-15 J e. 1.8 × 10^-15 J
A circular steel rod 0.005 m in radius and 4.000 m long is subject to an axial force of 0.250 × 105 newtons. We observe that the rod elongates 0.616 × 10-2 m. Calculate the tensile stress and the axial strain in the rod.
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Due to its elliptical orbit, Mars is closer to the Sun on average during winter in the Northern Hemisphere. This means Northern Winter on Mars will be
A) short and hot B) long and mild C) long and cold D) short and mild