Food in boiling water cooks slower in high-altitude locations. If you increase the stove temperature under the pot the food will cook

A) faster.
B) slower.
C) neither of these


Answer: C

Physics & Space Science

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A 1.5m long, 0.75kg dowel is pivoted about the end so that it is a pendulum of sorts - it can freely swing in a vertical plane. At the other end of the dowel is a brass weight having mass 1.5kg. (The center of the brass weight is 1.5m from the pivot point. When the rod is positioned in its swing such that its angle with the vertical is 22.5 degrees, what is the net torque on the rod about the pivot?

A. 11 Nm B. 28 Nm C. 9.5 Nm D. 25 Nm

Physics & Space Science

A set of charged spheres carries -1.5 mC and each has mass 15 ?g. What vertical electric field in the laboratory would cause these spheres to continue in a straight line if they were projected horizontally into the electric-field region?

A. -98 ?V/m B. 10 mV/m C. -10 mV/m D. 98 ?V/m

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A watermelon will cool faster when placed in what part of a refrigerator?

A) the freezer compartment B) the main part of the refrigerator C) either location should cool the can at the same rate

Physics & Space Science

A 2.00 m brass rod with a 1.00 mm diameter is used as a spring by stretching the rod. If the tensile modulus of brass is then the spring constant of the rod is

a.
b.
c.
d.
e.

Physics & Space Science