Describe the primary difference between the northern and southern hemispheres on Mars
What will be an ideal response?
The northern hemisphere is primarily plains (lowlands) with few craters and extensive lava flows. The southern hemisphere is heavily cratered highlands.
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Molecular spectra, like elemental ones, involve only the vibration of the particles
Indicate whether the statement is true or false
A 150-N box is being pulled horizontally in a wagon accelerating uniformly at 3.00 m/s2
The box does not move relative to the wagon, the coefficient of static friction between the box and the wagon's surface is 0.600, and the coefficient of kinetic friction is 0.400. The friction force on this box is closest to A) 450 N. B) 90.0 N. C) 60.0 N. D) 45.9 N.
An aluminum electric tea kettle has a mass of 500 g. It has a 500-W heating coil. How long will it take to heat up 1.0 kg of water from 18°C to 98°C in the tea kettle? The specific heat of aluminum is 900 J/(kg•K)
A) 5 minutes B) 7 minutes C) 12 minutes D) 15 minutes E) 18 minutes
Which of the following species is the reducing agent?
2 CuBr ? 2Cu + Br2 A) Cu B) CuBr C) Cu+ D) Br- E) Br2