How does the thickness of a lens relate to it being converging or diverging?
What will be an ideal response?
A converging lens is thicker at its center than it is at its edges and a diverging lens is thinner at its center than it is at its edges.
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When does a protostar become a true star?
A) when the star is 1 million years old B) when the central temperature reaches 1 million Kelvin C) when nuclear fusion begins in the core D) when the thermal energy becomes trapped in the center E) when the stellar winds and jets blow away the surrounding material
Specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C After the 1 kg block of ice melts, the amount of heat required to raise its temperature to 10°C is 3,340,000 J
a. True b. False Indicate whether the statement is true or false
The units of specific heat are
a. kcal-kg/°C. b. J/kg-°C. c. kcal-kg. d. J/kg.
A 250-kg motorcycle goes around an unbanked turn of radius 13.7 m at a steady 96.5 km/h. What is the magnitude of the net force on the motorcycle?
A) 719 N B) 2.95 × 103 N C) 1.31 × 104 N D) 4.31 × 104 N