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The Sun is primarily composed of hydrogen and helium, with traces of other elements. Its visible surface, the photosphere, is a dense and nearly opaque gas at a temp of 6000 K. Describe the spectrum that originates at this surface, due to the physical state of the material. Explain how the spectrum arises.
You see a bolt of lightning strike the ground. Exactly 37 seconds later you hear the thunder. how far away is the lightning
Refer to Conceptual Example 8 as background material for this problem. The drawing shows a horizontal beam of light that is incident on a prism. The base of the prism is also horizontal. The prism (n = 1.20) is surrounded by a liquid whose index of r..
a rectangular air mattress is 2.0 m long, 0.50 m wide, and0.08 m thick. If it has a mass of 2.0 kg, what additional mass can it support in water
A toy rocket moving vertically upward passes by a 2.1m -high window whose sill is 8.0m above the ground. What was the launch speed of the rocket
The infamous chicken is dashing toward home plate with a speed of 5.6m/s when he decides to hit the dirt. The chicken slides for 1.0s , just reaching the plate as he stops (safe, of course).
two isotopes of carbon carbon-12 and carbon-13 have masses of 19.93 10-27 kg and 21.59 10-27 kg respectively. these two
Tarzan swings on a 30.0?m?long vine initially inclined at an angle of 370 with the vertical. What is his speed at the bottom of the swings if he starts from rest
Gold and silver have densities of 19.3 and 10.5 grams per cubic centimeter, respectively. If you have equal volumes of each, which one will have the larger mass? Explain
A race car rounds a curve at 59 m/s. The radius of the curve is 439 m, and the car's mass is 615 kg. (Assume the car's speed remains constant. What is the centripetal force acting on the car
A long, straight wire lies along the y-axis and carries a current of 8A in the negative y direction, What is the total magnetic field
In an RLC circuit, the following three elements are connected in series: a resistor of 31.0 ohm, a 22.2-mH inductor, and a 0.390-µF capacitor. Find the power factor for the RLC series circuit
A 120 g trick baseball is thrown at 51 km/h. It explodes in flight into two pieces, with a 50 g piece regular straight ahead at 86 km/h. How much energy do the pieces gain in the explosion.
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