Calculate the speed (in m/s) a spherical rain drop would achieve falling from 1.50 km in the absence of air drag and with air drag. Take the size across of the drop to be 2 mm, the density to be 1.00 x 10° kg/m³, and the surface area to be ar?. (Assume the density of air is 1.21 kg/m³.) (a) in the absence of air drag m/s (b) with air drag m/s

Calculate the speed (in m/s) a spherical rain drop would achieve falling from 1.50 km in the absence of air drag and with air drag. Take the size across of the drop to be 2 mm, the density to be 1.00 x 10° kg/m³, and the surface area to be ar?. (Assume the density of air is 1.21 kg/m³.) (a) in the absence of air drag m/s (b) with air drag m/s

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 2.10CYU: Check Your Understanding Verify that vector v V obtained in Example 2.14 is indeed a unit vector by...

See similar textbooks

Similar questions

Two calipers in a national park hike from their cabin to the same spot on a lake, each taking a different path, as illustrated below. The total distance traveled along Path 1 is 7.5 km, and that along Path 2 is 82 km. What is the final displacement of each camper?
Check Your Understanding Verify that vector v V obtained in Example 2.14 is indeed a unit vector by computing its magnitude. If the convoy in Example 2.8 was moving across a desert flatland—that is, it the third component of its velocity was zero—what is the unit vector of its direction of motion? Which geographic direction does it represent?
When a 10,000-rn runner competing on a 400-rn track crosses the finish line, what is the runner’s net displacement? Can this displacement be zero? Explain.
One cubic centimeter of a typical cumulus cloud contains 70 water drops, which have a typical radius of 10 um. (a) How many cubic meters of water are in a cylindrical cumulus cloud of height 3.1 km and radius 0.9 km? (b) How many 1-liter pop bottles would that water fill? (c) Water has a density of 1000 kg/m3. How much mass does the water in the cloud have? (a) Number i Units (b) Number Units (c) Number Units
Calculate the speed (in m/s) a spherical rain drop would achieve falling from 3.80 km in the absence of air drag and with air drag. Take the size across of the drop to be 3 mm, the density to be 1.00 x 103 kg/m³, and the surface area to be ar?. (Assume the density of air is 1.21 kg/m3.) (a) in the absence of air drag m/s (b) with air drag m/s
Freeway Traffic. According to a Scientific American article (May 1990 ), current freeways can sustain about 2400 vehicles per lane per hour in smooth traffic flow at 96 km/h (60 mi/h ). With more vehicles the traffic flow becomes "turbulent" (stop-and-go). (a) If a vehicle is 4.6 m (15ft) long on the average, what is the average spacing between vehicles at the above traffic density? (b) Collision avoidance automated control systems, which operate by bouncing radar or sonar signals off surrounding vehicles and then accelerate or brake the car when necessary, could greatly reduce the required spacing between vehicles. If the average spacing is 9.2 m (two lengths), how vehicles hour can car many per a lane of traffic carry at 96 km/hkm/h ?
The below figure shows a pump that transfers a steady stream of 35◦API crude oil from an oiltanker to a refinery storage tank, both free surfaces being open to the atmosphere. Theeffective length—including fittings—of the commercial steel pipe is 6,000 ft. The dischargeat point 4 is 200 ft above the pump exit, which is level with the free surface of oil in thetanker. However, because of an intervening hill, point 3 is at a higher altitude than point 4.Losses between points 1 and 2 may be ignored.The crude oil has the following properties:Density ρ = 53 lbm/ft 3 ; Viscosity μ = 13.2 cP; Vapour Pressure Pv = 4.0 psia Answer the following questions:1. If the flow in the pipeline were at the upper limit of being laminar, what pump exitpressure would then be needed? (Answer this part without using the friction factor plot
One cubic centimeter of a typical cumulus cloud contains 310 water drops, which have a typical radius of 10-5m. (a) How many cubic meters of water are in a cylindrical cumulus cloud of height 3.1 km and radius 1.1 km? (b) How many 1-liter pop bottles would that water fill? (c) Water has a density of 1000 kg/m3, How much mass does the water in the cloud have?
Calculate the speed (in m/s) a spherical rain drop would achieve falling from 3.70 km in the absence of air drag and with air drag. Take the size across of the drop to be 6 mm, the density to be 1.00 ✕ 103 kg/m3, and the surface area to be ?r2. (Assume the density of air is 1.21 kg/m3.)
cormula for the drag force is F = dv° (found to be valid for a large regime of datalere : s the drag force, d is a constant (involving the area of the object, density of the fluid, etc.), and v is the relative speed between the object and the fluid. la) Rewrite the drag force equation in the form: 1b) In a plot of log F (y- log F = (...) log v + log (...) variable) vs log v (x- variable), what do you expect to be the slope value? |lb) In a plot of log F (y- variable) vs log v (x- variable), what do you expect to be the y-intercept?
One cubic centimeter of a typical cumulus cloud contains 350 water drops, which have a typical radius of 10 μm. (a) How many cubic meters of water are in a cylindrical cumulus cloud of height 3.0 km and radius 1.0 km? (b) How many 1-liter pop bottles would that water fill? (c) Water has a density of 1000 kg/m3. How much mass does the water in the cloud have?
Water enters a hose of radius 3.54 mm with a velocity of 1.89 mm/s. Calculate the exit velocity of water from the garden hose when a nozzle of radius 2.5 mm is attached to the end of the hose. Express answer in mm/s. use 9.81m/s squared for acceleration round off into 4 decimal places