A type B star is bluer than a type G star
Indicate whether the statement is true or false
TRUE
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Block A of mass 5.0 kg and block X are attached to a rope which passes over a pulley, as shown in the figure. An 80-N force P is applied horizontally to block A, keeping it in contact with a rough vertical face
The coefficients of static and kinetic friction between the wall and block A are ?s = 0.40 and ?k = 0.30. The pulley is light and frictionless. The mass of block X is adjusted until block A moves upward with an acceleration of 1.6 m/s2. What is the mass of block X? A) 9.9 kg B) 9.3 kg C) 8.7 kg D) 8.1 kg E) 7.5 kg
The three laws of planetary motion by ________ allowed us to predict planetary motion
Fill in the blank(s) with correct word
Process of Science: We cannot test the nebular theory for the formation of the Solar System in a rigorous scientific way because the Sun and planets formed in the distant past
Indicate whether the statement is true or false
The spectral lines of a star indicate ionized helium is prominent, yet the star appears orange in color. Explain the problem with this and offer an explanation
What will be an ideal response?