If the rotational speed of a rotating habitat in space increases, the weight experienced by occupants
A) decreases.
B) stays the same.
C) increases.
D) is always zero.
Answer: C
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Which of the following atoms normally has one covalent bond to it?
a. Cl b. Te c. Si d. N e. Ne
How much heat must be removed from 456 g of water at 25.0°C to change it into ice at -10.0°C? The specific heat of ice is 2090 J/(kg K) and the latent heat of fusion of water is 33.5 × 104 J/kg
A) 105 kJ B) 153 kJ C) 57.3 kJ D) 47.7 kJ E) 210 kJ
In a loop in a closed circuit, the sum of the currents entering a junction equals the sum of the currents leaving a junction because
a. the potential of the nearest battery is the potential at the junction. b. there are no transformations of energy from one type to another in a circuit loop. c. capacitors tend to maintain current through them at a constant value. d. current is used up after it leaves a junction. e. charge is neither created nor destroyed at a junction.
Photosynthesis produces ______________ in the atmosphere
a. carbon dioxide b. oxygen c. argon d. carbon monoxide