It is contained inside a long, narrow cell of length 1×10−41×10−4 mm. What uncertainty does this...
It is contained inside a long, narrow cell of length 1×10−41×10−4 mm. What uncertainty does this imply for the velocity of the virus along the length of the cell? Assume the virus has a density equal to that of water.
The virus has a diameter of 50 nm.
What is 
?
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It is contained inside a long, narrow cell of length
1×10−41×10−4 mm. What uncertainty does this...
4. A straw of diameter 20 mm and 26 cm long stands vertically in a cup...
4. A straw of diameter 20 mm and 26 cm long stands vertically in a cup of Mazoe (density approximately equal to water) 10 cm in diameter. 8.5 cm of the straw extends above the Mazoe. A MU first year student in lecture group B, sucks on the straw and the level of the Mazoe begins to drop a rate of 0.75 cm/s. a. Find the speed of the Mazoe inside the straw. b. Calculate the pressure difference in the...
A cylindrical piece of steel has a diameter of 50 mm and a length of 200...
A cylindrical piece of steel has a diameter of 50 mm and a length of 200 mm. Steel has a density of 7200 kg/m3 a) (3 points) Determine the mass of this piece in kg. 1. b) (3 points) If a 10 mm diameter opening is drilled through the entire length of this cylinder and that portion removed, what is the new mass of this piece? c) (4 points) The 10 mm diameter piece is pulled with a force of...
10 mm diameter 0.12 m 0.25-mm-diameter 0.10-m-long needle Par = 101 kPa (abs) Figure 3: Schematics...
10 mm diameter 0.12 m 0.25-mm-diameter 0.10-m-long needle Par = 101 kPa (abs) Figure 3: Schematics of the syringe. 2 Pipe flow [6 points) A liquid with SG = 0.96, x = 9.2 x 10-4 Nsm-2, and vapor pressure pu = 8000 Nm-2 (absolute) is drawn into the syringe as is indicated in figure 3. What is the maximum flowrate if cavitation is not to occur in the syringe? Assume the flow is laminar. Neglect minor losses. Assume that the...
A cylindrical wire has length 60 cm, diameter 9.0 mm, and resistivity 3.0 x 10-4 2m....
A cylindrical wire has length 60 cm, diameter 9.0 mm, and resistivity 3.0 x 10-4 2m. When the wire is connected across the terminals of a battery, the magnitude of electric field inside the wire is 15 V/m. (a) (b) Calculate the current in the wire and the power dissipated in the wire. Include SI units with each answer. (10 points) In five minutes, how much charge passes through the wire, how many electrons are contained in this amount of...
The mass density of a 115 cm long, 0.724 mm diameter string is 1.85 x 10-4...
The mass density of a 115 cm long, 0.724 mm diameter string is 1.85 x 10-4 kg/m. Determine the tension needed in the string to have the same fundamental frequency as E (330 Hz). If the diameter of the string were decreased to 0.699 mm, but the mass density remains the same, will the tension increase, decrease, or remain the same to produce the same E fundamental frequency? Explain. What is the length of a closed pipe necessary to have...
4. A pure copper pipe with inner diameter Di-10 mm ard outer diameter Do-14 mm is surrounded by s...
4. A pure copper pipe with inner diameter Di-10 mm ard outer diameter Do-14 mm is surrounded by saturated steam with pressure p 172 bar and convection coefficient h 6000 carries water with mean velocity u- (a) Determine the convective heat transfer coefficient inside the pipe for water at mean temperature Tm 37° C (b) At this same location, determine the total thermal resistance (per unit length) between the water and the steam. (c) Determine the heat transfer rate (per...
-2 2 Pipe flow [6 points) A liquid with SG 0.96, 1 = 9.2 x 10-4...
-2 2 Pipe flow [6 points) A liquid with SG 0.96, 1 = 9.2 x 10-4 Nsm-2, and vapor pressure pu = 8000 Nm (absolute) is drawn into the syringe as is indicated in figure 3. What is the maximum flowrate if cavitation is not to occur in the syringe? Assume the flow is laminar. Neglect minor losses. Assume that the velocity of the piston is negligible compared to the velocity in the needle. Atmospheric pressure is Patm 101 325...
-2 2 Pipe flow [6 points) A liquid with SG 0.96, 1 = 9.2 x 10-4...
-2 2 Pipe flow [6 points) A liquid with SG 0.96, 1 = 9.2 x 10-4 Nsm-2, and vapor pressure pu = 8000 Nm (absolute) is drawn into the syringe as is indicated in figure 3. What is the maximum flowrate if cavitation is not to occur in the syringe? Assume the flow is laminar. Neglect minor losses. Assume that the velocity of the piston is negligible compared to the velocity in the needle. Atmospheric pressure is Patm 101 325...
1. a. One solenoid is centered inside another. The outer one has a length of 47.0...
1. a. One solenoid is centered inside another. The outer one has a length of 47.0 cm and contains 6700 coils, while the coaxial inner solenoid is 5.00 cm long and 0.170 cm in diameter and contains 17.0 coils. What is the mutual inductance of these solenoids? The current in the outer solenoid is changing at 38.0 A/s. b. Find the emf induced in the inner solenoid. c. A toroidal solenoid has a mean radius of 18.0 cm and a...
4. A flat-plate capacitor of length 20 cm, width 10 cm, and spacing 1 mm, is...
4. A flat-plate capacitor of length 20 cm, width 10 cm, and spacing 1 mm, is connected to a 24 V battery. Find (a) the charge on the capacitor, (b) the surface charge density on the plates, (c) the energy stored in the capacitor. If strontium titanate of dielectric constant 310 occupies the space between the capacitors, find (d) the permittivity of the dielectric, (e) the capacitance of the capacitor, (f) the energy density of the electric field inside the...
4. A straw of diameter 20 mm and 26 cm long stands vertically in a cup of Mazoe (density approximately equal to water) 10 cm in diameter. 8.5 cm of the straw extends above the Mazoe. A MU first year student in lecture group B, sucks on the straw and the level of the Mazoe begins to drop a rate of 0.75 cm/s. a. Find the speed of the Mazoe inside the straw. b. Calculate the pressure difference in the...
A cylindrical piece of steel has a diameter of 50 mm and a length of 200 mm. Steel has a density of 7200 kg/m3 a) (3 points) Determine the mass of this piece in kg. 1. b) (3 points) If a 10 mm diameter opening is drilled through the entire length of this cylinder and that portion removed, what is the new mass of this piece? c) (4 points) The 10 mm diameter piece is pulled with a force of...
10 mm diameter 0.12 m 0.25-mm-diameter 0.10-m-long needle Par = 101 kPa (abs) Figure 3: Schematics of the syringe. 2 Pipe flow [6 points) A liquid with SG = 0.96, x = 9.2 x 10-4 Nsm-2, and vapor pressure pu = 8000 Nm-2 (absolute) is drawn into the syringe as is indicated in figure 3. What is the maximum flowrate if cavitation is not to occur in the syringe? Assume the flow is laminar. Neglect minor losses. Assume that the...
A cylindrical wire has length 60 cm, diameter 9.0 mm, and resistivity 3.0 x 10-4 2m. When the wire is connected across the terminals of a battery, the magnitude of electric field inside the wire is 15 V/m. (a) (b) Calculate the current in the wire and the power dissipated in the wire. Include SI units with each answer. (10 points) In five minutes, how much charge passes through the wire, how many electrons are contained in this amount of...
4. A pure copper pipe with inner diameter Di-10 mm ard outer diameter Do-14 mm is surrounded by saturated steam with pressure p 172 bar and convection coefficient h 6000 carries water with mean velocity u- (a) Determine the convective heat transfer coefficient inside the pipe for water at mean temperature Tm 37° C (b) At this same location, determine the total thermal resistance (per unit length) between the water and the steam. (c) Determine the heat transfer rate (per...
-2 2 Pipe flow [6 points) A liquid with SG 0.96, 1 = 9.2 x 10-4 Nsm-2, and vapor pressure pu = 8000 Nm (absolute) is drawn into the syringe as is indicated in figure 3. What is the maximum flowrate if cavitation is not to occur in the syringe? Assume the flow is laminar. Neglect minor losses. Assume that the velocity of the piston is negligible compared to the velocity in the needle. Atmospheric pressure is Patm 101 325...
-2 2 Pipe flow [6 points) A liquid with SG 0.96, 1 = 9.2 x 10-4 Nsm-2, and vapor pressure pu = 8000 Nm (absolute) is drawn into the syringe as is indicated in figure 3. What is the maximum flowrate if cavitation is not to occur in the syringe? Assume the flow is laminar. Neglect minor losses. Assume that the velocity of the piston is negligible compared to the velocity in the needle. Atmospheric pressure is Patm 101 325...
4. A flat-plate capacitor of length 20 cm, width 10 cm, and spacing 1 mm, is connected to a 24 V battery. Find (a) the charge on the capacitor, (b) the surface charge density on the plates, (c) the energy stored in the capacitor. If strontium titanate of dielectric constant 310 occupies the space between the capacitors, find (d) the permittivity of the dielectric, (e) the capacitance of the capacitor, (f) the energy density of the electric field inside the...
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