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If the current flows at 2 mph and it takes me 3 hrs. to row 9 miles upstream how long will it take for me to return?
To find how long it will take to return downstream, first determine the effective speed while rowing upstream. The current speed is 2 mph, so your effective speed upstream is your rowing speed minus the current. If it takes 3 hours to row 9 miles upstream, your rowing speed is 5 mph (since 9 miles / 3 hours = 3 mph, and 3 mph + 2 mph = 5 mph). While returning downstream, your effective speed will be 5 mph + 2 mph = 7 mph. Thus, it will take 9 miles / 7 mph = approximately 1.29 hours, or about 1 hour and 17 minutes, to return downstream.
A motor boat can go 2 miles downstream on a river in 3 minutes it takes 15 minutes for the boat to go upstream the same 2 miles find the speed of the current?
Let boat speed = X and current speed = Y Downstream speed = boat speed plus current speed = X + Y Upstream speed = boat speed minus current speed = X -Y Downstream speed = 2 miles divided by 3 minutes = 2/3 miles per minute Upstream speed = 2 miles divided by 15 minutes = 2/15 miles per minute X + Y = 2/3 X - Y = 2/15 add equations 2X = 2/3 + 2/15 = 10/15 + 2/15 = 12/15 = 4/5 divide by 2 X = 4/10 = 2/5 use second equation and find Y as X -Y = 2/15 2/5 - Y = 2/15 6/15 - Y = 2/15 Y = 4/15 = current speed = 0.266 miles per minute
It took a crew 2 hours and 15 minutes to row 3 km upstream and back again if the rate of flow of the stream was 1 km h what was the rowing speed of the crew in still water?
Let the rowing speed of the crew in still water be ( r ) km/h. When rowing upstream, the effective speed is ( r - 1 ) km/h, and downstream, it is ( r + 1 ) km/h. The total time for the trip is given as 2 hours and 15 minutes, which is 2.25 hours. The time taken to row 3 km upstream is ( \frac{3}{r - 1} ) and downstream is ( \frac{3}{r + 1} ). Thus, the equation is: [ \frac{3}{r - 1} + \frac{3}{r + 1} = 2.25 ] Solving this equation will give the rowing speed ( r ). The solution yields ( r = 2 ) km/h.
A sailor goes 8km downstream in 40 minutes and returns in 1 hours Determine the speed of the sailor in still water and speed of the current?
Let speed of stream = y kmph & speed of boat = x kmphspeed downstram((x + y)kmph) = 8 * 60 / 40 kmph= 12 kmphspeed upstream((x - y) kmph) = 8/1 kmph= 8 kmphx + y = 12x - y = 8--------------2x = 20,2y = 4x = 10,y = 2=>Speed of stream = 2 kmph, Speed of boat = 10 kmp
How far is it from Portland ME airport to the CAT ferry terminal in Portland?
3.5 miles downstream along the fore river or a $20 cab ride and 15 minutes
Where is located oxygen sensor 1998 Mercury Villager?
When you start looking at the O2 sensors, they are normally numbered something like "Bank 1 Sensor 1" Bank 1 is on the passenger side; Bank 2 is on the driver's side. Sensor 1 is the upstream sensor (near the frame, between the block and the cat) and Sensor 2 is near the Y-pipe (downstream of the cat). Normally it is the upstream sensors (sensor 1) that go first. They see the harshest conditions. You will need; Oxygen Sensor Socket Anti-Seized Penetrating Oil Sometimes it will take 15 minutes or take a few hours it depends on your luck…
Where is the O2 Sensor on 1995 Ford Taurus?
Oxygen SensorWhen you start looking at the O2 sensors, they are normally numbered something like "Bank 1 Sensor 1" Bank 1 is on the passenger side - or closest to the firewall; Bank 2 is on the driver's side - the front bank.Sensor 1 is the upstream sensor (near the frame, between the block and the cat) and Sensor 2 is near the Y-pipe (downstream of the cat).Normally it is the upstream sensors (sensor 1) that go first. They see the harshest conditions.You will need;Oxygen Sensor SocketAnti-SeizedPenetrating OilSometimes it will take 15 minutes or take a few hours it depends on your luck…
Can a upstream O2 sensor cause misfiring and engine hesitation at low speeds?
what could cause a car to run for 20 minutes and dye and waiting about 5 minutes it will start back up and run for a couple of minutes and then have to wait and it will start back up and go for about 5 minutes and dye again. Chevy cavalier 2004
When navigating in a zone of restricted visibility on a motorboat at what intervals should you sound one prolonged blast to alert others of your presence?
When navigating in a zone of restricted visibility on a motorboat, you should sound one prolonged blast at intervals of approximately two minutes. This signal alerts other vessels to your presence and indicates your approach. Additionally, it is important to be vigilant and maintain a proper lookout to ensure safety while navigating in these conditions.
How many minutes until 9pm Eastern time?
To determine the number of minutes until 9 PM Eastern Time, you need to know the current time. Subtract the current time from 9 PM, then convert the difference into minutes. For example, if it is currently 7 PM, there are 120 minutes until 9 PM.
What time will in half an hour?
Add thirty minutes to the current time.
How many minutes will get to eight o'clock?
To determine how many minutes it will take to reach eight o'clock, you need to know the current time. If it is currently, for example, 7:30, then there are 30 minutes until eight o'clock. If it is 7:45, there are 15 minutes left. Simply subtract the current time from 8:00 to find the answer.
