From where does most of the solar wind flow?
A) granules
B) sunspots
C) flares
D) prominences
E) coronal holes
E
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If a planet takes 140 years to orbit its host star, how far is it in units of A.U.?
What will be an ideal response?
Slanting Surfaces Without Friction: A system consisting of blocks, a light frictionless pulley, a frictionless incline, and very light connecting wires is shown in the figure. The wires pull on the left-hand blocks parallel to the surface of the ramp. The 9.0-kg block accelerates downward when the system is released gently from rest.(a) What is the magnitude of the acceleration of the 9.0-kg block?(b) What is the tension in the wire connecting the two blocks on the incline?
What will be an ideal response?
Pressure: A brick weighs 50.0 N, and measures 30.0 cm × 10.0 cm × 4.00 cm. What is the maximum pressure it can exert on a horizontal surface due to its weight?
A. 1.25 Pa B. 12.5 Pa C. 1.25 kPa D. 12.5 kPa
In atomic absorption chromatography, the amount of light absorbed is ________ to the concentration of the element in the test sample.
A) is not related B) indirectly related C) directly related