In usa, butter is generally sold by pounds, with four sticks per pound and each stick being 11.45 cm in length.

(a) if each stick is in the shape of a rectangle with square cross-section, find the dimensions of each stick (cm). for butter: k 1⁄4 0.2 w/(m k); r 1⁄4 998 kg/m3 ; cp 1⁄4 2,300 j/(kg k).
(b) suppose that a stick of butter is maintained for a week at 280 k. it is then placed in the surroundings at room temperature (293 k) so that all the six sides are exposed to air with h 1⁄4 8 w/(m2 k). find the temperature (k) at the center of a single stick after 1 h.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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where’s the list ? the question is incomplete

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

prndulum needs thread, weight clock to time swings