Any successful model for the formation of the solar system must explain why the orbits of the planets have low eccentricities
Indicate whether the statement is true or false
TRUE
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A 2.0-kg mass is projected from the edge of the top of a 20-m tall building with a velocity of 24 m/s at some unknown angle above the horizontal. Disregard air resistance and assume the ground is level. What is the kinetic energy of the mass just before it strikes the ground?
a. 0.18 kJ b. 0.97 kJ c. 0.89 kJ d. 0.26 kJ e. 0.40 kJ
What is the size of a typical granule or convection cell seen in the photosphere?
A) 10,000 km B) 1,000 km C) 100 km D) 10 km E) 1 km
Because of absorption, a Polaroid will actually transmit 40% of incident unpolarized light. Two such Polaroids with their axes aligned will transmit
A) 0%. B) 40%. C) 100%. D) between 0% and 40%. E) between 40% and 100%.
What process in an isolated atom will make it absorb a photon?
What will be an ideal response?