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1. Venus and Earth are about the same size and mass, yet carbon dioxide is a major constituent of the atmosphere of Venus, while oxygen is much more abundant in the Earth's atmosphere. Explain why the atmospheres are so different.
2. Explain why there are two general families of planets, rocky terrestrial and gaseous jovian.
3. The first planets discovered since ancient times were Uranus and Neptune. Compare how they were discovered.
4. What knowledge do comets and asteroids provide to studies of the origin of the solar system?
A softball player swings a bat, accelerating it from rest to3.5 rev/s in a time of 0.20 s. compute the torque the player applies to one end of it
The critical angle for a certain liquid-air surface is42.0°. What is the index of refraction of the liquid
The rear axle of a truck is 2.5 m long. If the truck is moving at 28 m/s and the vertical component of the earth’s magnetic field is 3.2 *10^-5T, what emf is induced between the ends of the axle?
Light bulb 1 operates with a filament temperature of 2700 Kelvin, whereas light bulb 2 has a filament temperature of 2100 Kelvin. Obtain the ratio of the filament areas of the bulbs
A sphere of copper that has a radius of 5 cm is compressed uniformly by a force of 3.0 108 N. Calculate the change in volume of the sphere
Blood from two different patients is to be tested by having it glow through a long straight tube of length 10 cm and internal diameter 6 mm. A pressure drop of 50 dynes/cm2 is imposed from one end of the tube
A 100% efficient transformer has 120 primary turns and 840 secondary turns. Calculate the primary voltage and primary current
When you touch a friend after walking across a rug on a dry day, you typically draw a spark of about 2.01mm. Calculate the potential difference between you and your friendjust before the spark.
A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (26°C) at the ocean's surface, Find what is the maximum possible efficiency of the system
The attractive force between proton and an electron due to gravity is Gmpme/ r2 , where me =0.9x10-30 kg, mp = 1.67x10-27 kg, and G =6.67x10-11 m3 /kg.s2 . What is the lowest gravitational Bohrradius?
A transparent rod 50.0cm long and by a refractive index of 1.60 is cut flat at the right end and rounded to hemispherical surface (convex) by a radius of 15.0cm at the left end. An object is placed on the axis of the rod 12.0cm to the left of the ver..
Three pucks have masses m1=100g, m2=125g, and m3=150g. The pucks with masses m1 and ms move with velocities v1=4.00m/s in the negative-y direction, what is the angular momentum of the system
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