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Question: Newton's law of cooling Newton's law of cooling can be used to estimate time of death. (Actually the estimate may be quite rough, because cooling does not begin until metabolic processes have ceased.) Suppose a corpse is discovered at noon in a 70°F room, and at that time the body temperature is 96.1°F. If at 1;00 p.m. the body temperature is 94.6°F, use Newton's law of cooling to estimate the time of death.
a rotating wheel requires 7.00s to rotate 26.0revolutions. its angular velocity at the end of the 7.00-s interval
A hardworking ant must supply 0.00655 N to pull a small piece of fruit at constant velocity over a distance of 10.00 cm up a small hill to the entrance of the colony. calculate the work done by the ant by pulling the piece of fruit up the hill
A computer disk drive is turned on starting from rest and has constant angular acceleration. Determine what is its angular acceleration
Three particles of mass 8 kg, 5 kg, and 3 kg are connected by rigid rods of negligible mass lying along the y axis and are placed at 5 m, ?3 m, and ?7 m, Find the linear speed of the top particle of mass
The generator at a power plant produces AC at 27,000 V. A transformer steps this up to 355,000 V for transmission over power lines. how many turns must there be in the output coil
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3, length 78.7 centimeter and diameter 2.80 centimeter from a storage room to a machinist. Evaluate what the weight of the rod
a ball is launched directly upward from ground level with an initial speed of 18 ms. air resistance is negligible.a how
A movie camera with a (single) lens of focal length 95 mm takes a picture of a person standing 28 m away. what is the height of the image in millimeters on the film
a freezer is used to freeze 3.0 l of water completely into ice. the water and the freezer remain at a constant
Use 1 term, 3 term and 5 term approximation of Taylor’s series to evaluate f(2.5) for function f(x)=ln (x) about the base point x= 1.0. Compute percentage relative error for all cases.
A 2130 satellite used in a cellular telephone network is in a circular orbit at a height of 800above the surface of the earth. What fraction is this force of the satellite's weight at the surface of the earth
A glass tube having an inside diameter of 0.25 mm and an outside diameter of 0.35 mm is inserted into a pool of mercury at 20°C such that the contact angle is 13°8. Determine the upward force on the glass.
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