Find the heat that flows in 1.0 s through a lead brick 12 cm long if the temperature difference between the ends of the brick is 9.0 ∘C . The cross-sectional area of the brick is 16 cm2 . express answer two significant figures in Joules
Find the heat that flows in 1.0 s through a lead brick 12 cm long if...
Find the heat that flows in 1.0 s through a lead brick 14 cm long if the temperature difference between the ends of the brick is 9.0 ∘C . The cross-sectional area of the brick is 11 cm^2
Water flows at a rate of 22 L/min through a horizontal 7.0-cm-diameter pipe under a pressure of 17.0 Pa . At one point, calcium deposits reduce the cross-sectional area of the pipe to 21 cm2 . What is the pressure at this point? (Consider the water to be an ideal fluid.) Express your answer using two significant figures.
Water flows at a rate of 21 L/min through a horizontal 8.0-cm-diameter pipe under a pressure of 3.8 Pa . At one point, calcium deposits reduce the cross-sectional area of the pipe to 39 cm2 . What is the pressure at this point? (Consider the water to be an ideal fluid.) Express your answer using two significant figures. p= Pa
How much heat is conducted through a brass rod (k = 110 J/s•m•C°) with length 1.2 m cross-sectional area 0.030 m2 in 30 s when the temperature difference between its two ends is 50 C°?
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 4.0 m/s.What is the volume flow rate through the pipe? Express your answer using two significant figures.
Two massless, frictionless pistons are inside a horizontal tube opened at both ends. A 10-cm-long thread connects the pistons. The cross-sectional area of the tube is 20 cm2. The pressure and temperature of gas between the pistons and the outside air are the same and are equal to P = 1.0×105N/m2 and T = 23 ∘C. A.) At what temperature will the thread break if it breaks when the tension reaches 33 N ?
A wall consists of a 10 cm thick layer of brick (0.84 J/s-m-C). How much heat conducts through 30 m^2 area of this wall if the temperature difference across the wall is 36 degrees farenheit?
A liquid_p = 1.45 g/cm^2) flows through a horizontal pipe of varying cross section as in the figure below. In the first section, the cross-sectional area is 10.0 cm^2, the flow speed is 248 cm/s, and the pressure is 1.20 times 10^5 Pa. In the second section, the cross-sectional area is 4.50 cm^2. Calculate the smaller section's flow speed. (Enter your answer to at least two decimal places.) m/s Calculate the smaller section's pressure. Pa Whole blood has a surface...
please do all QUESTION 1 Like 14.3.8 Find the heat flow in 35.61days through a 0.25cm think steel plate with cross section 47 48cm x 76.31cm. Assume a temperature differential of 90.04°C. QUESTION 2 Like 14.3.10 Find the heat flow in 17.25minutes through a 0.17om thick copper plate with cross sectional area 150.07cm if the temperature of the hot side is 971.85°C and the temperature of the cold side is 7.48C QUESTION 1 Like 14.4.8 Find Q for each material:...
There is a potential difference of 1.9 V between the ends of a 20 cm long graphite rod that has a cross-sectional area of 1.3 mm^2. The resistivity of graphite is 7.5 x 10^-6 ohm-m. Find the resistance of the rod. Find the current. Find the electric field inside the rod.