# Time - math word problems - page 144 of 146

Time (latin tempus) is one of the fundamental physical quantities of SI. The base unit is 1 second. One second is defined as 9,192,631,770 transition oscillations in the Cs-133 atom (the atomic clock ticking). Time cannot be defined using other physical quantities - it is an essential - fundamental quantity. Derived units are minute, hour, day, week, year. For example, 1 minute is defined as 60 seconds. One hour is 3600 seconds. One day is 24 hours. Fractional seconds are 1 ms (millisecond), 1 μs (microsecond), and 1 ns (nanosecond). Frequency is the inverse of the duration of a phenomenon that repeats itself.#### Number of problems found: 2915

- Gimli Glider

Aircraft Boeing 767 lose both engines at 42000 feet. The plane captain maintains optimum gliding conditions. Every minute, lose 1910 feet and maintain constant speed 211 knots. Calculate how long it takes for a plane to hit the ground from engine failure. - Euclid1

The right triangle ABC has hypotenuse c = 20 cm. How large sections cuts height h_{c}=9 cm on the hypotenuse c? - Fall

The body was thrown vertically upward at speed v_{0}= 39 m/s. Body height versus time describes equation h = v_{0}* t - (1)/(2) * 9.8 * t². What is the maximum height of body reach? - Free fall

Pavel fall from height 9 m. Calculate the speed he hit the ground when falling with acceleration g = 9.81 m/s²

- Subway

The Subway train went between two stations that gradually accelerated for 26 seconds and reached a speed of 72 km/h. At this rate, it went 56 seconds. Then 16 seconds slowed to a stop. What was the distance between the stations? - ŽSR

Calculate fixed annual personnel costs of operating monorail line 115 km long if every 7 km is a station that serves three people - one dispatcher and two switchmen in 4-shift operation. Consider the average salary of the employee 829 euro. - Salary

Calculate the equivalent annual salary to an hourly wage of $ $h. Assume a $n-hour workweek. - Server

Calculate how many average minutes the web server is unavailable a year if the availability is 99.9%. - Crystal

The crystal grows every month 1.2 permille of its mass. How many months to develop a crystal from weight 177 g to 384 g?

- Pool

If water flows into the pool by two inlets, fill the whole for 20 hours. The first inlet filled the pool 8 hour longer than the second. How long does the pool take to fill with two inlets separately? - Center

Calculate the coordinates of the center of gravity T [x, y] of triangle ABC; A[-17,9] B[-26,-19] C[-7,7]. - Daily average

Calculate the average temperature during the day, when 14 hours were 24 °C and 10 hours was 14 °C. - Car - simple

Car is traveling 77 km per hour. How long distance does it travel in 1 minute? - Clock

How many hours are 15 days?

- Height 2

Calculate the height of the equilateral triangle with side 49. - Aircraft

Flight length 3457 km took 5 hours. The airport passengers had to arrive hours in advance, 2 hours. Departure was delayed for 6.4 hours. The destination airport formalities took 0.4 hours. Calculate the average speed of passenger travel from arrival to le - Pipes

The water pipe has a cross-section 1184 cm². An hour has passed 743 m³ of water. How much water flows through the pipe with cross-section 300 cm² per 6 hours if water flows at the same speed? - Education for free

Slovakia circulates a lot of myths, particularly ideas about what must be free. For example - education should be free - children of poor parents should know at least to read and write. Calculate how much a student would have to pay per hour of teaching w - Minute angle

Find the size of the angle, which takes a minute hand for 20 minutes.

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