Rub your hands together for 20 seconds. What’s your estimate of the temperature increase due to...
Rub your hands together for 20 seconds. What’s your estimate of the temperature increase due to the rubbing? Typed please.
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Rub your hands together for 20 seconds. What’s your estimate of
the temperature increase due to...
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs...
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 24 rubs, at a distance of 8.50 cm per rub, and with an average frictional force of 44.0 N, what is the temperature increase? The mass of tissues warmed is only 0.100 kg, mostly in the palms and fingers.
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs...
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 25 rubs a distance of 7.50 cm each and with a frictional force averaging 51.3 N, what is the temperature increase? The mass of tissue warmed is only 0.100 kg, mostly in the palms and fingers. The specific heat of the tissue is 3500 J/(kg · °C).
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs...
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 25 rubs a distance of 7.50 cm each and with a frictional force averaging 51.3 N, what is the temperature increase? The mass of tissue warmed is only 0.100 kg, mostly in the palms and fingers. The specific heat of the tissue is 3500 J/(kg · °C). ____C
(10%) Problem 1: thermal energy. Rubbing your hands together warms them by converting work into Solids...
(10%) Problem 1: thermal energy. Rubbing your hands together warms them by converting work into Solids Aluminum Concrete 900 840 387 840 0.215 Glass Human Body (37C)3500 Iron, steel 0.20 0.83 us 452 Water Mercury 4186 139 .000 0.0333 Otheexpertta.com à If a woman rubs her hands a total of 22 times (forward and backwards count separately), at a distance of 73 cm per rub, and with an average frictional force of 40.5 N, what is the temperature increase of...
According to the article "Rubbing Hands Together Under Warm Air Dryers Can Counteract Bacteria Reduction"† washing...
According to the article "Rubbing Hands Together Under Warm Air Dryers Can Counteract Bacteria Reduction"† washing your hands isn't enough—good "hand hygiene" also includes drying hands thoroughly. The article described an experiment to compare bacteria reduction for three different hand-drying methods. In this experiment, subjects handled uncooked chicken for 45 seconds, then washed their hands with a single squirt of soap for 60 seconds, and then used one of the three hand-drying methods. After completely drying their hands, the bacteria...
A 22.0-m-long bar of steel expands due to a temperature increase. A 11.0-m-long bar of copper...
A 22.0-m-long bar of steel expands due to a temperature
increase. A 11.0-m-long bar of copper also gets longer due to the
same temperature rise. The two bars were originally separated by a
gap of 1.6 cm. Assume the steel and copper bars are fixed on the
ends, as shown in the following figure.
1)
Calculate the change in temperature if the gap is exactly
"closed" by the expanding bars. (Express your answer to two
significant figures.)
Answer in K...
A 100-W lightbulb has a resistance of about 12 Ω when cold (20 ∘C) and 136 Ω when on (hot). Estimate the temperature of the filament when hot assuming an average temperature coefficient of resistivity α=0.0045(C)−1.
Please, no referring. A 100-W lightbulb has a resistance of about 12 Ω when cold (20 ∘C) and
136 Ω when on (hot). Estimate the temperature of the filament when hot
assuming an average temperature coefficient of resistivity
α=0.0045(C)−1.
er: 2. When the temperature of the steel plate with the hole in it is increased,...
er: 2. When the temperature of the steel plate with the hole in it is increased, (a) the width W will ? increase ? decrease remain unchanged. (b) the thickness T will ? increase ? decrease ? remain unchanged. (c) the diameter D of the hole will increase decrease remain unchanged (d) the density ? of the plate will € increase ? decrease remain unchanged. + . w 3. On a July day in Wisconsin, the temperature of a length...
CE 261 Theory of Structures Term Project (20%) DUE 7th of November 2018) Prepare a report...
CE 261 Theory of Structures Term Project (20%) DUE 7th of November 2018) Prepare a report showing the process in solving trusses symbolically from group I or 2: a. Calculate support reactions b. Derive an expression for the axial forces in the truss members. c. Summarize your answer d. Solve the problem numerically. e. Compare your answers in both (b) and ( in a table format PLEASE NOTE a. The report is typed in a word processor b. All figures...
0 to 60 mph in 10 seconds with the A car accelerates smoothly from velocity given in the figure below. Estimate how far the car travels during the 10 -second period. v (mph) 60 40 20 t (sec) 10 5 Rou...
0 to 60 mph in 10 seconds with the A car accelerates smoothly from velocity given in the figure below. Estimate how far the car travels during the 10 -second period. v (mph) 60 40 20 t (sec) 10 5 Round your answer to three decimal places. miles. The car traveled
0 to 60 mph in 10 seconds with the A car accelerates smoothly from velocity given in the figure below. Estimate how far the car travels during the 10...
(10%) Problem 1: thermal energy. Rubbing your hands together warms them by converting work into Solids Aluminum Concrete 900 840 387 840 0.215 Glass Human Body (37C)3500 Iron, steel 0.20 0.83 us 452 Water Mercury 4186 139 .000 0.0333 Otheexpertta.com à If a woman rubs her hands a total of 22 times (forward and backwards count separately), at a distance of 73 cm per rub, and with an average frictional force of 40.5 N, what is the temperature increase of...
A 22.0-m-long bar of steel expands due to a temperature
increase. A 11.0-m-long bar of copper also gets longer due to the
same temperature rise. The two bars were originally separated by a
gap of 1.6 cm. Assume the steel and copper bars are fixed on the
ends, as shown in the following figure.
1)
Calculate the change in temperature if the gap is exactly
"closed" by the expanding bars. (Express your answer to two
significant figures.)
Answer in K...
er: 2. When the temperature of the steel plate with the hole in it is increased, (a) the width W will ? increase ? decrease remain unchanged. (b) the thickness T will ? increase ? decrease ? remain unchanged. (c) the diameter D of the hole will increase decrease remain unchanged (d) the density ? of the plate will € increase ? decrease remain unchanged. + . w 3. On a July day in Wisconsin, the temperature of a length...
CE 261 Theory of Structures Term Project (20%) DUE 7th of November 2018) Prepare a report showing the process in solving trusses symbolically from group I or 2: a. Calculate support reactions b. Derive an expression for the axial forces in the truss members. c. Summarize your answer d. Solve the problem numerically. e. Compare your answers in both (b) and ( in a table format PLEASE NOTE a. The report is typed in a word processor b. All figures...
0 to 60 mph in 10 seconds with the A car accelerates smoothly from velocity given in the figure below. Estimate how far the car travels during the 10 -second period. v (mph) 60 40 20 t (sec) 10 5 Round your answer to three decimal places. miles. The car traveled
0 to 60 mph in 10 seconds with the A car accelerates smoothly from velocity given in the figure below. Estimate how far the car travels during the 10...
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