The Sun's path, as viewed from the equator, is highest in the sky on ________
A) the winter solstice B) the day when Earth is closest to the Sun
C) the summer solstice D) the spring and fall equinoxes
D
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The advantage that a lever can give you is that
A. with a small lever, you can move a large weight. B. with a large force, you can torque a large weight. C. with a small force, you can move a large weight. D. with a small torque, you can lift a large weight.
100 grams of molten lead (600°C) is used to make musket balls. If the lead shot is allowed to cool to room temperature (21°C), what is the change in entropy (in J/K) of the lead? (For the specific heat of molten and solid lead use 1.29 J/g×°C; the latent heat of fusion and the melting point of lead are 2.45 × 10^4 J/kg and 327°C.)
a. -145 b. -252 c. -302 d. -429 e. -100
What is hydrostatic pressure?
What will be an ideal response?
Why is it so important to model the possible mechanisms of failure in nuclear reactors? Explain why
What will be an ideal response?