If a rainstorm drops 2 cm of rain over an area of 15 km2 in the...
If a rainstorm drops 2 cm of rain over an area of 15 km2 in the period of 3 hours, what is the momentum (in kg · m/s) of the rain that falls in six seconds? Assume the terminal velocity of a raindrop is 10 m/s. (Enter the magnitude. The density of water is 1,000 kg/m3.)
Homework Answers
A spherical raindrop 1.9 mm in diameter falls through a vertical distance of 4150 m. Take...
A spherical raindrop 1.9 mm in diameter falls through a vertical distance of 4150 m. Take the cross-sectional area of a raindrop = πr2, drag coefficient = 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4150 m in the absence of air drag. _________ m/s (b) What would its speed be at the end of 4150 m when there is air...
A spherical raindrop 3.3 mm in diameter falls through a vertical distance of 4000 m. Take...
A spherical raindrop 3.3 mm in diameter falls through a vertical distance of 4000 m. Take the cross-sectional area of a raindrop ,drag coefficient 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4000 m in the absence of air drag 280 m/s (b) What would its speed be at the end of 4000 m when there is air drag? 1.091 What...
A spherical raindrop (r = 0.0015 m) falls from a cloud. The drag coefficient is 0.60....
A spherical raindrop (r = 0.0015 m) falls from a cloud. The drag coefficient is 0.60. The density of the water is 1000 kg/m^3 and the density of the air it falls through is 1.2 kg/m^3. The shape of the drop doesn’t change during the fall, and the terminal velocity is 7.3 m/s. At this terminal speed, what is the magnitude of the resistive force acting on the drop?
18. An elephant and a hunter are having a confrontation me = 2000.0 kg mhunter -...
18. An elephant and a hunter are having a confrontation me = 2000.0 kg mhunter - 90.0 kg REarth = 1.50 mdart - 0.0400 kg Vdart - (600 m/s)(-1) VE = (7.50 m/s) Vhunter = (7.40 m/s)i a. Calculate the momentum of the 2000.0-kg elephant charging the hunter at a speed of 7.50 m/s. b. Calculate the ratio of the elephant's momentum to the momentum of a 0.0400-kg tranquilizer dart fired at a speed of 600 m/s. C. What is...
Question 3.A groundwater aquifer has a surface area of 15 km2 and saturated groundwater depth 500...
Question 3.A groundwater aquifer has a surface area of 15 km2 and saturated groundwater depth 500 cm from ground surface The saturated thickness is 100 meter(the water bearing material filled with water).. The groundwater inflow to the aquifer 12 m/s and the outflow from the aquifer is 6 m3/s. Three well pump water one at 2 m'/s, the second at 3 m3/s. and third a rate 4 m3/s. The aquifer receive recharge of 500 mm per year. Large number of...
2.) As a raindrop falls through a cloud, it collides with smaller droplets of mist and...
2.) As a raindrop falls through a cloud, it collides with smaller droplets of mist and grows in mass (a) Derive a differential equation that relates the mass and velocity of the drop as it falls and accretes mass. Hint: Do NOT just differentiate d(mv)/dt, but start with the impulse-momentum theorem in differential form, like we did in the derivation of the rocket equation. Your "system" should include the raindrop itself and a small mass Δm of droplets with which...
A 90-kg (including any equipment) skydiver drops out of a plane. Using an air density of...
A 90-kg (including any equipment) skydiver drops out of a plane. Using an air density of 1.0 kg/m3, a frontal surface area of 1.0 m2, and a drag coefficient of 0.8, what will the skydiver's terminal velocity be? A. Less than 50 m/s B. Between 50 and 100 m/s C. Between 100 and 150 m/s D. More than 150 m/s v= square root -2 (90) (-9.81)sin90/.8(1.0)(1.0)
The ink drops have a mass m = 1.00×10−11 kg each and leave the nozzle and...
The ink drops have a mass m = 1.00×10−11 kg each and leave the nozzle and travel horizontally toward the paper at velocity v = 20.0 m/s . The drops pass through a charging unit that gives each drop a positive charge q by causing it to lose some electrons. The drops then pass between parallel deflecting plates of length D0 = 2.35 cm , where there is a uniform vertical electric field with magnitude E = 8.20×104 N/C ....
The ink drops have a mass m = 1.00×10−11 kg each and leave the nozzle and...
The ink drops have a mass m = 1.00×10−11 kg each and leave the nozzle and travel horizontally toward the paper at velocity v = 15.0 m/s . The drops pass through a charging unit that gives each drop a positive charge q by causing it to lose some electrons. The drops then pass between parallel deflecting plates of length D0 = 2.20 cm , where there is a uniform vertical electric field with magnitude E = 7.55×104 N/C If...
The ink drops have a mass m = 1.00×10−11 kg each and leave the nozzle and...
The ink drops have a mass m = 1.00×10−11 kg each and leave the nozzle and travel horizontally toward the paper at velocity v = 20.0 m/s . The drops pass through a charging unit that gives each drop a positive charge q by causing it to lose some electrons. The drops then pass between parallel deflecting plates of length D0 = 1.90 cm , where there is a uniform vertical electric field with magnitude E = 7.65×104 N/C ....
A spherical raindrop 3.3 mm in diameter falls through a vertical distance of 4000 m. Take the cross-sectional area of a raindrop ,drag coefficient 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4000 m in the absence of air drag 280 m/s (b) What would its speed be at the end of 4000 m when there is air drag? 1.091 What...
18. An elephant and a hunter are having a confrontation me = 2000.0 kg mhunter - 90.0 kg REarth = 1.50 mdart - 0.0400 kg Vdart - (600 m/s)(-1) VE = (7.50 m/s) Vhunter = (7.40 m/s)i a. Calculate the momentum of the 2000.0-kg elephant charging the hunter at a speed of 7.50 m/s. b. Calculate the ratio of the elephant's momentum to the momentum of a 0.0400-kg tranquilizer dart fired at a speed of 600 m/s. C. What is...
Question 3.A groundwater aquifer has a surface area of 15 km2 and saturated groundwater depth 500 cm from ground surface The saturated thickness is 100 meter(the water bearing material filled with water).. The groundwater inflow to the aquifer 12 m/s and the outflow from the aquifer is 6 m3/s. Three well pump water one at 2 m'/s, the second at 3 m3/s. and third a rate 4 m3/s. The aquifer receive recharge of 500 mm per year. Large number of...
2.) As a raindrop falls through a cloud, it collides with smaller droplets of mist and grows in mass (a) Derive a differential equation that relates the mass and velocity of the drop as it falls and accretes mass. Hint: Do NOT just differentiate d(mv)/dt, but start with the impulse-momentum theorem in differential form, like we did in the derivation of the rocket equation. Your "system" should include the raindrop itself and a small mass Δm of droplets with which...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago