A proton (1.67 × 10-27 kg) is accelerated to 99.8% the speed of light. How much energy did the accelerator have to impart?
A) 14.8 GeV
B) 13.9 GeV
C) 38.9 GeV
D) 7.52 GeV
E) 223. GeV
B
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A submarine is located 2.000 km below the surface of the water. What is the absolute pressure of the seawater on the outside of the submarine? (density of seawater is 1,025
A. 175.0 atm B. 187.3 atm C. 199.2 atm D. 205.5 atm E. 210.0 atm
Which of the following worlds is the one for which we have sent the most space missions to learn about the potential of life beyond the Earth?
A) the Moon B) Venus C) Mars D) Europa E) Titan
Convection in the outer layers of a star like the Sun helps mixing and makes more hydrogen available for burning.
Answer the following statement true (T) or false (F)
What is the number of molecules of O2 consumed if you combust one mole of CH4 according to the following balanced equation?
CH4 + 2 O2 ? CO2 + 2 H2O A) 1 molecule B) 2 molecules C) 6.022 × 1023 molecules D) 1.204 × 024 molecules E) 1 g of molecules