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(20%) Problem 1: Water emerges straight down from a faucet with a 1.95-cm diameter at a...
(10%) Problem 8: Consider the terminal voltage of a 3.00 V lithium cell in a digital...
(10%) Problem 8: Consider the terminal voltage of a 3.00 V lithium cell in a digital wristwatch that draws 18 mA. ► What is the terminal voltage, V, in volts, if the cell's internal resistance is 2.4 2 ? V= na HOME E sin() cos cotan asin atan) acotan cosh tanh( Degrees tan acos sinh() cotanh Radians 7 8 | 4 5 1 2 0 BACKSPACE 9 6 3 . END DEL CLEAR (10%) Problem 9: Consider an automobile battery...
(14%) Problem 2: A wire carrying 390 A to the motor of a commuter train feels...
(14%) Problem 2: A wire carrying 390 A to the motor of a commuter train feels an attractive force of 3.8 x 10-3 N/m due to a parallel wire carrying 5.5 A to a headlight. Randomized Variables 1; = 390 A 12 = 5.5 A F = 3.8 x 10-3 N/m > * How far apart are the wires in meters? r= 0.08681 7 89 HOME л E ^^ 4 5 sin() cos tano cotan asin() acos atan acotan sinh)...
(25%) Problem 2: Consider a person whose body temperature has risen because of a fever. A...
(25%) Problem 2: Consider a person whose body temperature has risen because of a fever. A What is the temperature, in degrees Fahrenheit, of a person with a 39.2°C fever? T[°F] = 1 o ( 7 8 9 HOME E ^^ 4 5 6 sin() cos() tan() cotan() asin() acos() atan) acotan() sinh cosh() tanh) | cotanh() Degrees Radians * 1 2 3 .. → END 0 BACKSPACE DEL CLEAR Submit Hint Feedback I give up!
Water emerges straight down from a faucet with a 1.55-cm diameter at a speed of 0.515...
Water emerges straight down from a faucet with a 1.55-cm diameter at a speed of 0.515 m/s. (Because of the construction of the faucet, there is no variation in speed across the stream.) a. What is the flow rate through this faucet, in cubic centimeters per second? answer Q=97.12 b. What is the diameter, in centimeters, of the stream 0.200 m below the faucet? Neglect any effects due to surface tension. need help with part b only
(20%) Problem 3: A nozzle with a radius of 0.16 cm is attached to a garden...
(20%) Problem 3: A nozzle with a radius of 0.16 cm is attached to a garden hose with a radius of 0.91 cm that is pointed straight up. The flow rate through hose and nozzle is 0.55 L/s. Randomized Variables n = 0.16 cm rn=0.91 cm Q=0.55 L/S 50% Part (a) Calculate the maximum height to which water could be squirted with the hose if it emerges from the nozzle in m. ha = 238.75 h2 = 238.8 Correct! >...
(20%) Problem 5: A frequently quoted rule of thumb in aircraft design is that wings should...
(20%) Problem 5: A frequently quoted rule of thumb in aircraft design is that wings should produce about 1000 N of lift per square meter of wing. (The fact that a wing has a top and bottom surface does not double its area.) > A 50% Part (a) At takeoff, an aircraft travels at 67 m/s, so that the air speed relative to the bottom of the wing is 67 m/s. Given the sea level density of air to be...
(13%) Problem 6: Consider an appliance that consumes 4.75 kW.h of energy per day. > A...
(13%) Problem 6: Consider an appliance that consumes 4.75 kW.h of energy per day. > A 50% Part (a) What is the average power consumption, in watts, of the appliance? P= o E sin() cos tan() cotan() asin() acos() atan() acotan() sinh) cosh() | tanh() cotanh() Degrees Radians ( 7 8 ^^^V 4 5 * 1 2 + - 0 VO BACKSPACE 9 6 3 . DEL Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining:...
(6%) Problem 6: The figure shows the view looking down onto an air hockey table. A...
(6%) Problem 6: The figure shows the view looking down onto an air hockey table. A puck collides with a stationary bar. The collision is completely inelastic. m The bar has mass M=1.66 kilograms and length L = 1.14 meters. The puck has mass m = 0.422 kilograms and is initially moving at vi = 7.16 perpendicular to the bar. The puck collides with the bar at a location of b = 0.495 meters from the center of the bar....
(20%) Problem 3: A nozzle with a radius of 0.16 cm is attached to a garden hose with a radius of 0.91 cm that is pointe...
(20%) Problem 3: A nozzle with a radius of 0.16 cm is attached to a garden hose with a radius of 0.91 cm that is pointed straight up. The flow rate through hose and nozzle is 0.55 L/s. Randomized Variables In = 0.16 cm Th=0.91 cm Q=0.55 L/s 50% Part (a) Calculate the maximum height to which water could be squirted with the hose if it emerges from the nozzle in m. h2 = 238.75 h2 = 238.8 Correct! >...
(13%) Problem 8: In open heart surgery, a small amount of energy is often used to...
(13%) Problem 8: In open heart surgery, a small amount of energy is often used to defibrillate the heart 50% Part (a) What voltage in kilovolts, is applied to the 9.25 μ-capacitor of a heart defibrillator that stores 37 J of energy? Grade Summary Deductions Potential 6% 94% 7 8 9 HOME sin cotan atan cosh coS asin acotan tanh) o Degrees o Radians tan acos sinh cotanh Submissions Attempts remaining: 4 (3% per attempt) detailed view END BACKSPA DEL...
(10%) Problem 8: Consider the terminal voltage of a 3.00 V lithium cell in a digital wristwatch that draws 18 mA. ► What is the terminal voltage, V, in volts, if the cell's internal resistance is 2.4 2 ? V= na HOME E sin() cos cotan asin atan) acotan cosh tanh( Degrees tan acos sinh() cotanh Radians 7 8 | 4 5 1 2 0 BACKSPACE 9 6 3 . END DEL CLEAR (10%) Problem 9: Consider an automobile battery...
(14%) Problem 2: A wire carrying 390 A to the motor of a commuter train feels an attractive force of 3.8 x 10-3 N/m due to a parallel wire carrying 5.5 A to a headlight. Randomized Variables 1; = 390 A 12 = 5.5 A F = 3.8 x 10-3 N/m > * How far apart are the wires in meters? r= 0.08681 7 89 HOME л E ^^ 4 5 sin() cos tano cotan asin() acos atan acotan sinh)...
(25%) Problem 2: Consider a person whose body temperature has risen because of a fever. A What is the temperature, in degrees Fahrenheit, of a person with a 39.2°C fever? T[°F] = 1 o ( 7 8 9 HOME E ^^ 4 5 6 sin() cos() tan() cotan() asin() acos() atan) acotan() sinh cosh() tanh) | cotanh() Degrees Radians * 1 2 3 .. → END 0 BACKSPACE DEL CLEAR Submit Hint Feedback I give up!
(20%) Problem 3: A nozzle with a radius of 0.16 cm is attached to a garden hose with a radius of 0.91 cm that is pointed straight up. The flow rate through hose and nozzle is 0.55 L/s. Randomized Variables n = 0.16 cm rn=0.91 cm Q=0.55 L/S 50% Part (a) Calculate the maximum height to which water could be squirted with the hose if it emerges from the nozzle in m. ha = 238.75 h2 = 238.8 Correct! >...
(20%) Problem 5: A frequently quoted rule of thumb in aircraft design is that wings should produce about 1000 N of lift per square meter of wing. (The fact that a wing has a top and bottom surface does not double its area.) > A 50% Part (a) At takeoff, an aircraft travels at 67 m/s, so that the air speed relative to the bottom of the wing is 67 m/s. Given the sea level density of air to be...
(13%) Problem 6: Consider an appliance that consumes 4.75 kW.h of energy per day. > A 50% Part (a) What is the average power consumption, in watts, of the appliance? P= o E sin() cos tan() cotan() asin() acos() atan() acotan() sinh) cosh() | tanh() cotanh() Degrees Radians ( 7 8 ^^^V 4 5 * 1 2 + - 0 VO BACKSPACE 9 6 3 . DEL Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining:...
(6%) Problem 6: The figure shows the view looking down onto an air hockey table. A puck collides with a stationary bar. The collision is completely inelastic. m The bar has mass M=1.66 kilograms and length L = 1.14 meters. The puck has mass m = 0.422 kilograms and is initially moving at vi = 7.16 perpendicular to the bar. The puck collides with the bar at a location of b = 0.495 meters from the center of the bar....
(20%) Problem 3: A nozzle with a radius of 0.16 cm is attached to a garden hose with a radius of 0.91 cm that is pointed straight up. The flow rate through hose and nozzle is 0.55 L/s. Randomized Variables In = 0.16 cm Th=0.91 cm Q=0.55 L/s 50% Part (a) Calculate the maximum height to which water could be squirted with the hose if it emerges from the nozzle in m. h2 = 238.75 h2 = 238.8 Correct! >...
(13%) Problem 8: In open heart surgery, a small amount of energy is often used to defibrillate the heart 50% Part (a) What voltage in kilovolts, is applied to the 9.25 μ-capacitor of a heart defibrillator that stores 37 J of energy? Grade Summary Deductions Potential 6% 94% 7 8 9 HOME sin cotan atan cosh coS asin acotan tanh) o Degrees o Radians tan acos sinh cotanh Submissions Attempts remaining: 4 (3% per attempt) detailed view END BACKSPA DEL...
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