A block that is a m square slides from left to right across a flat plate...
A block that is a m square slides from left to right across a flat plate on a thin film of oil. The oil has viscosity μ N·s/m2 and the film is h m thick.
The block of mass M kg moves at steady speed U m/s under the influence of constant force F N. (a) Find the magnitude of the shear stresses on the bottom of the block. Indicate the direction of the shear stresses on the bottom of (b) the block and (c) the plate. (d) If the force is removed suddenly and the block begins to slow, obtain an expression for the time required for the block to lose 78 percent of its initial speed. Round your numeric answer to 3 significant digits.
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A block that is a m square slides from left to right across a
flat plate...
Viscosity of an oil film when an object with a mass of m=0.1 kg and a...
Viscosity of an oil film when an object with a mass of m=0.1 kg
and a cross section of 400 cm2 slides at a constant speed V= 0.049
m/s on an oil film 1 mm thick on a plate inclined 30° to the
horizontal line as shown in the figure. How many N·s/m2 is the
coefficient?
m
QUESTION 1 A flat plate that is 6 x3 tt slides on oll (absolute viscosity -0.018...
QUESTION 1 A flat plate that is 6 x3 tt slides on oll (absolute viscosity -0.018 ) Der a large plan surface, as shown in the figure below. What force a velocityof 4 feet per second if the thickness of the separating oil film is 0.025 inches Plate is required to deagte platest Oil a 112 pounds 1. 207 pounds c346 pounds 622 pounds
A block slides from rest, along a track with an elevated left end, a flat central...
A block slides from rest, along a track with an elevated left
end, a flat central part, into a relaxed spring, as shown in the
figure. The curved portion of the track is frictionless, as well as
the first portion of the flat part of L = 10 cm. The coefficient of
kinetic friction between the block and the only rough part, D = 10
cm, is given by k = 0.20. Let the initial height of the block be...
A square plate is 1.0 × 10-2 m thick, measures 3.5 × 10-2 m on a...
A square plate is 1.0 × 10-2 m thick, measures 3.5 × 10-2 m on a side, and has a mass of 7.2 × 10-2 kg. The shear modulus of the material is 2.9 × 1010 N/m2. One of the square faces rests on a flat horizontal surface, and the coefficient of static friction between the plate and the surface is 0.86. A force is applied to the top of the plate, as in Figure (a). Determine (a) the maximum...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate having 1m length and 1 m width. The oil has a free stream temperature To= 80 °C and the plate surface temperature is maintained at Ts = 0 °C. a. Determine whether the flow over the plate transitions to turbulent regime. b. Calculate the average friction factor and the average heat transfer coefficient for the plate by using the appropriate correlations. c. Calculate the...
As shown below (not to scale), a block of mass starts from rest and slides down...
As shown below (not to scale), a block of mass starts from rest
and slides down a frictionless ramp of height h. Upon reaching the
bottom of the ramp, it continues to slide across a flat
frictionless surface. It then crosses a "rough patch" on the
surface of length d=10m. This rough patch has a coefficient of
kinetic friction uK=.1. After crossing the rough patch, the block's
final speed is vf=2m/s. What is the height of the ramp? Hint: I...
don a sled starts from rest at the top of a 15.0° slope. If the trip...
don a sled starts from rest at the top of a 15.0° slope. If the trip to the bottom takes 2 s, how long i A) 586 mB) 293 m C) 1130 m D) 147 m 2) Two children fighting over a toy pull on the toy in different directions. One child pulls to the north with a force of 5.3 N, and the other child pulls to the east with a force of 6.3 N. What is the magnitude...
Viscosity of an oil film when an object with a mass of m=0.1 kg
and a cross section of 400 cm2 slides at a constant speed V= 0.049
m/s on an oil film 1 mm thick on a plate inclined 30° to the
horizontal line as shown in the figure. How many N·s/m2 is the
coefficient?
m
QUESTION 1 A flat plate that is 6 x3 tt slides on oll (absolute viscosity -0.018 ) Der a large plan surface, as shown in the figure below. What force a velocityof 4 feet per second if the thickness of the separating oil film is 0.025 inches Plate is required to deagte platest Oil a 112 pounds 1. 207 pounds c346 pounds 622 pounds
A block slides from rest, along a track with an elevated left
end, a flat central part, into a relaxed spring, as shown in the
figure. The curved portion of the track is frictionless, as well as
the first portion of the flat part of L = 10 cm. The coefficient of
kinetic friction between the block and the only rough part, D = 10
cm, is given by k = 0.20. Let the initial height of the block be...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate having 1m length and 1 m width. The oil has a free stream temperature To= 80 °C and the plate surface temperature is maintained at Ts = 0 °C. a. Determine whether the flow over the plate transitions to turbulent regime. b. Calculate the average friction factor and the average heat transfer coefficient for the plate by using the appropriate correlations. c. Calculate the...
As shown below (not to scale), a block of mass starts from rest
and slides down a frictionless ramp of height h. Upon reaching the
bottom of the ramp, it continues to slide across a flat
frictionless surface. It then crosses a "rough patch" on the
surface of length d=10m. This rough patch has a coefficient of
kinetic friction uK=.1. After crossing the rough patch, the block's
final speed is vf=2m/s. What is the height of the ramp? Hint: I...
don a sled starts from rest at the top of a 15.0° slope. If the trip to the bottom takes 2 s, how long i A) 586 mB) 293 m C) 1130 m D) 147 m 2) Two children fighting over a toy pull on the toy in different directions. One child pulls to the north with a force of 5.3 N, and the other child pulls to the east with a force of 6.3 N. What is the magnitude...
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